1 00:00:00,000 --> 00:00:03,888 >> [THEME music kucheza] 2 00:00:03,888 --> 00:00:17,705 3 00:00:17,705 --> 00:00:18,830 DAVID J Malan: Hello dunia. 4 00:00:18,830 --> 00:00:20,640 Hii ni CS50Live. 5 00:00:20,640 --> 00:00:23,900 Hivyo ni kuletwa kwa mawazo yangu kwamba katika kipindi cha matukio kadhaa 6 00:00:23,900 --> 00:00:28,370 Nipate alisema chache mambo ambayo ni sahihi. 7 00:00:28,370 --> 00:00:31,400 Naam, kati ya kwanza kwa mfano, ni kwamba tovuti hii maarufu 8 00:00:31,400 --> 00:00:33,233 tumekuwa kutumia kwa kozi majadiliano 9 00:00:33,233 --> 00:00:34,710 si kwa kweli aitwaye redder. 10 00:00:34,710 --> 00:00:36,940 Ni inaonekana aitwaye Reddit. 11 00:00:36,940 --> 00:00:41,150 >> Wakati huo huo, ni kesi hiyo kwa kabisa baadhi ya wakati Marekani ilikuwa kutumia 12 00:00:41,150 --> 00:00:45,700 00000000 kulinda makombora yake. 13 00:00:45,700 --> 00:00:50,650 Hata hivyo makombora hao walikuwa nyuklia, na si inaonekana, "nuke-wewe-ler." 14 00:00:50,650 --> 00:00:51,300 >> Wakati huo huo. 15 00:00:51,300 --> 00:00:52,050 Mimi love you. 16 00:00:52,050 --> 00:00:55,820 Hii ni kweli kwa sasa, eti, password maarufu 17 00:00:55,820 --> 00:00:57,200 hivi sasa kwa ajili ya watu kutumia. 18 00:00:57,200 --> 00:01:01,140 Lakini hii - kama sisi kuvuta - ni si kwa kweli jinsi ya kufanya moyo. 19 00:01:01,140 --> 00:01:05,560 >> Mwisho, CS50 ya mwenyewe Shelley Westover, ambaye unaweza kukumbuka kutoka filamu kama 20 00:01:05,560 --> 00:01:08,420 kama hii moja, alibainisha kwamba yeye si kwa kweli 21 00:01:08,420 --> 00:01:11,860 kamera "operater" lakini operator kamera. 22 00:01:11,860 --> 00:01:14,750 Sasa akizungumza ya kamera operators, timu 23 00:01:14,750 --> 00:01:17,526 kwa neema kuruhusiwa yangu kukopa kamera hii leo, 24 00:01:17,526 --> 00:01:19,400 ili tuweze kuchukua kuangalia nini kweli 25 00:01:19,400 --> 00:01:21,590 kinachoendelea muda wote huu nyuma ya pazia. 26 00:01:21,590 --> 00:01:26,090 Hivyo kama wewe, tutakwenda mbele na kuchukua ziara ya studio? 27 00:01:26,090 --> 00:01:29,880 Tupo hapa katika nzuri Hauser Studio, katika WIDENER maktaba. 28 00:01:29,880 --> 00:01:32,840 Dhidi ya kuongezeka kwa hapa ni hii kijani screen, inayojulikana 29 00:01:32,840 --> 00:01:35,660 kama chroma muhimu, au CYC ukuta kimwili. 30 00:01:35,660 --> 00:01:37,410 Na kwa kweli, kama mimi kutembea up kwa karibu na hii, 31 00:01:37,410 --> 00:01:41,920 taarifa jinsi mpira ina Curve kidogo yake kuliko kawaida angle mkali. 32 00:01:41,920 --> 00:01:43,930 Ambayo inaruhusu sisi kuweka vivuli mbali ya edges, 33 00:01:43,930 --> 00:01:46,760 na pia inaruhusu sisi kufanya kuhakikisha kwamba tunaweza superimpose 34 00:01:46,760 --> 00:01:49,100 karibu kila kitu sisi wanataka nzuri na cleanly. 35 00:01:49,100 --> 00:01:51,390 >> Sasa hapa ni mzima kundi la taa kudhibitiwa 36 00:01:51,390 --> 00:01:55,670 na jopo kuu ya swichi ambayo tutaweza kuona katika kidogo tu. 37 00:01:55,670 --> 00:01:59,560 Up hapa ni mwanga LED na kinachojulikana Barn Milango juu yake. 38 00:01:59,560 --> 00:02:01,550 Hii ni nini Anamfukuza kuelekezwa sana mwanga. 39 00:02:01,550 --> 00:02:03,590 Kweli anitiaye mwanga yangu wakati wa show. 40 00:02:03,590 --> 00:02:07,430 Na kisha juu ya hapa tuna umeme mwanga, ambayo Anamfukuza laini mwanga. 41 00:02:07,430 --> 00:02:09,440 Sasa wote hawa ni nafuu kwa kazi, 42 00:02:09,440 --> 00:02:12,330 na mengi ya baridi kufanya kazi kuliko balbu zaidi ya jadi incandescent 43 00:02:12,330 --> 00:02:14,750 kwamba mengi ya folks bado huwa na katika makazi yao. 44 00:02:14,750 --> 00:02:16,864 Sasa kama sisi kugeuka hapa, utaona nini naona. 45 00:02:16,864 --> 00:02:19,280 Hivyo sisi kuwa wanandoa wa wetu kamera zaidi ya hapa, moja ambayo 46 00:02:19,280 --> 00:02:20,840 ina teleprompter juu yake. 47 00:02:20,840 --> 00:02:23,520 >> Sisi kwa kweli si kweli kutumia teleprompter katika CS50Live, 48 00:02:23,520 --> 00:02:26,800 lakini kwa kaptula, dhidi ya wale backdrops nyeupe kwamba unaweza kukumbuka, 49 00:02:26,800 --> 00:02:28,180 sisi kweli matumizi yao kidogo kabisa. 50 00:02:28,180 --> 00:02:31,013 Matumizi kabisa muda kidogo katika kuendeleza scripting vifaa hivyo kama 51 00:02:31,013 --> 00:02:32,240 kupata haki tu. 52 00:02:32,240 --> 00:02:36,264 >> Sasa zaidi ya hapa, itabidi kweli kuona kamera juu ya dari. 53 00:02:36,264 --> 00:02:37,180 Hebu kuvuta juu ya hilo. 54 00:02:37,180 --> 00:02:39,430 Hiyo ni kinachojulikana mapema cam kwamba anapata shots wale 55 00:02:39,430 --> 00:02:42,310 kwamba unaweza kuona katika mwanzo sana au mwisho kabisa wa CS50Live. 56 00:02:42,310 --> 00:02:43,950 Na ni vigumu kuona katika huko taa up, 57 00:02:43,950 --> 00:02:45,824 lakini ni kweli Hung kichwa chini, na sisi ni 58 00:02:45,824 --> 00:02:50,270 uwezo wa kurekebisha katika programu baada ya ukweli na flipping ni wima. 59 00:02:50,270 --> 00:02:54,600 >> Sasa - hi [? Andrea -?] Zaidi ya hapa, hebu kichwa juu ya kwamba jopo mwanga 60 00:02:54,600 --> 00:02:56,180 kwamba nilivyoeleza awali. 61 00:02:56,180 --> 00:02:58,390 Hii jopo mwanga ina kundi zima la swichi, 62 00:02:58,390 --> 00:03:01,430 na wao chuki wakati Mimi kwa kweli kufanya hivyo, 63 00:03:01,430 --> 00:03:05,600 lakini tunaweza kweli kutupa baadhi ya taa za juu na chini hapa. 64 00:03:05,600 --> 00:03:09,160 Siwezi kabisa kuona athari, lakini sisi ni aina ya wreaking havoc juu ya kamera yetu 65 00:03:09,160 --> 00:03:09,660 hivi sasa. 66 00:03:09,660 --> 00:03:12,465 Lakini hebu kurekebisha hii. 67 00:03:12,465 --> 00:03:14,810 Oh boy, hebu kusonga mbele. 68 00:03:14,810 --> 00:03:18,910 >> Hivyo katika hapa ni chumbani katika ambayo yote ya studio waya 69 00:03:18,910 --> 00:03:19,850 ni hatimaye kupelekwa. 70 00:03:19,850 --> 00:03:22,016 Na hii ni aina ya bongo nyuma ya kazi, 71 00:03:22,016 --> 00:03:23,710 nyuma ya pazia, mashabiki kubwa katika hapa. 72 00:03:23,710 --> 00:03:27,972 Kwa kweli, kama mimi konda katika unaweza kusikia kabisa kidogo ya kelele. 73 00:03:27,972 --> 00:03:30,430 Hivyo kuna kweli kabisa kidogo ya insulation juu ya haya ukuta 74 00:03:30,430 --> 00:03:33,054 ili kuweka kelele kuwa nje wakati hatuna katika ukweli kufunga milango. 75 00:03:33,054 --> 00:03:36,870 Lakini njia hadi pale unaweza kuona yote nyaya akiingia ndani na nje ya chumbani. 76 00:03:36,870 --> 00:03:39,070 Na juu ya hapa unaweza kuona nakala ya teleprompter 77 00:03:39,070 --> 00:03:41,370 kuwa tuliona tu wakati iliyopita. 78 00:03:41,370 --> 00:03:44,070 >> Alright, hebu kichwa katika kinachojulikana chumba kudhibiti. 79 00:03:44,070 --> 00:03:46,770 Hivyo zaidi ya hapa, mimi bado kufanya si kabisa kuelewa hili moja, 80 00:03:46,770 --> 00:03:49,300 hii ni mahali ambapo sisi kuweka wetu flammables inaonekana. 81 00:03:49,300 --> 00:03:51,760 Lakini juu ya hapa tuna kundi zima la vituo 82 00:03:51,760 --> 00:03:54,750 ambapo timu CS50 na timu nyingine HarvardX kazi. 83 00:03:54,750 --> 00:03:57,510 Na juu ya hapa tuna kituo chetu cha redio. 84 00:03:57,510 --> 00:03:59,580 Hebu tuangalie. 85 00:03:59,580 --> 00:04:01,140 Hey Patrick. 86 00:04:01,140 --> 00:04:03,820 Hivyo hapa sisi tena na kundi zima la dials 87 00:04:03,820 --> 00:04:06,430 tunaweza kusonga juu na chini ya kweli mabadiliko ya ngazi. 88 00:04:06,430 --> 00:04:07,264 Hii wakati kwa ajili ya kusikiliza. 89 00:04:07,264 --> 00:04:10,346 Na kwa kweli, kama mimi kufanya hii hapa - mimi nina kwenda polepole kuleta chini ya redio hii 90 00:04:10,346 --> 00:04:13,800 ngazi, na mimi nina kwenda kuendelea kuongea katika sauti hii ya kawaida yangu hapa katika Hauser 91 00:04:13,800 --> 00:04:16,790 Studio kwa CS50 kuishi, na katika baadhi ya uhakika wewe si kwenda kuwa - 92 00:04:16,790 --> 00:04:19,200 >> [BUKU hupunguza mpaka sauti ni  Inaudible.] 93 00:04:19,200 --> 00:04:22,054 >> Sasa kama mimi kuongeza nyuma juu itabidi kuanza kusikia sauti yangu tena. 94 00:04:22,054 --> 00:04:23,970 Sasa, huna kwa kufanya kila kitu manually. 95 00:04:23,970 --> 00:04:25,178 Kwa kweli tuna baadhi ya presets. 96 00:04:25,178 --> 00:04:28,407 Basi, ikiwa mimi kwenda juu hapa Tabaka menu, siwezi kweli kugeuza kati ya 1 97 00:04:28,407 --> 00:04:31,436 katika 16 na 7 katika 32, na utaona hili kutokea. 98 00:04:31,436 --> 00:04:32,310 Kweli pretty nadhifu. 99 00:04:32,310 --> 00:04:35,240 Mimi kufanya hivyo kabisa kidogo pia - kuangalia. 100 00:04:35,240 --> 00:04:39,070 >> Hata hivyo, hebu hoja juu ya hapa na utaona benki nzima ya anatoa ngumu, 101 00:04:39,070 --> 00:04:39,570 kweli. 102 00:04:39,570 --> 00:04:42,830 Haya yote ni ya SSD kwamba unaweza na katika Laptops leo, na hata 103 00:04:42,830 --> 00:04:43,876 baadhi katika kopyuta leo. 104 00:04:43,876 --> 00:04:46,000 Na wao kuhifadhi vitu kama hii - ambayo ni kweli 105 00:04:46,000 --> 00:04:49,445 tu gari ngumu, ambayo ni kuhusu 500 gigs katika SSD. 106 00:04:49,445 --> 00:04:51,372 Na unaweza kuona interface huko kupitia ambayo 107 00:04:51,372 --> 00:04:52,830 ni unajumuisha na matumbo ya kwamba. 108 00:04:52,830 --> 00:04:55,390 Hii ni pale ambapo yetu yote ya Footage hatimaye kuhifadhiwa, 109 00:04:55,390 --> 00:04:59,110 na kamera moja au zaidi kwamba sisi wanaweza kutumia kwa risasi fulani. 110 00:04:59,110 --> 00:05:04,050 >> Sasa juu ya hapa - Oh, Hey Ramon. 111 00:05:04,050 --> 00:05:04,776 Shukrani. 112 00:05:04,776 --> 00:05:06,900 Ramon ya kweli kamwe kutokana na mimi kipaumbele huko, 113 00:05:06,900 --> 00:05:08,170 lakini tutaweza tu ya kusonga mbele. 114 00:05:08,170 --> 00:05:11,570 Kama Ramon - kama mimi naweza kuangalia juu ya hapa, tuna rundo zima la vifungo 115 00:05:11,570 --> 00:05:12,819 kwamba tunaweza kucheza na kama vizuri. 116 00:05:12,819 --> 00:05:16,500 Na wakati huo huo kuna nzima kundi la maonyesho up hapa 117 00:05:16,500 --> 00:05:18,780 juu ya mbili kubwa, skrini kubwa. 118 00:05:18,780 --> 00:05:22,000 Na hii ni kweli kama matumbo ya televisheni studio. 119 00:05:22,000 --> 00:05:24,020 Yote ya ishara video kuja hapa, na kile 120 00:05:24,020 --> 00:05:26,940 sisi ni uwezo wa kufanya kwa kugusa swichi na dials ni kweli 121 00:05:26,940 --> 00:05:28,385 kuzalisha show katika muda halisi. 122 00:05:28,385 --> 00:05:30,510 Hivyo kwa mfano, tuna hii throttle kidogo hapa, 123 00:05:30,510 --> 00:05:31,760 kama unaweza kuona katika ndege. 124 00:05:31,760 --> 00:05:35,740 Kama mimi kuanza kupata nyuma huu, taarifa nini kinatokea katika picha mbili 125 00:05:35,740 --> 00:05:36,800 huko. 126 00:05:36,800 --> 00:05:40,310 Kufifia kati ya wawili, na hivyo tumeenda kutoka moja hadi nyingine. 127 00:05:40,310 --> 00:05:43,490 Na kama mimi kushinikiza kwamba nyuma juu, sasa sisi tumepewa nyuma picha ya awali. 128 00:05:43,490 --> 00:05:46,570 >> Wakati huo joystick hii juu ya hapa, kama zamani arcade console, 129 00:05:46,570 --> 00:05:49,170 inaruhusu sisi kufanya hivyo na kwamba mapema cam. 130 00:05:49,170 --> 00:05:51,080 Na huko sisi kwenda, kuna sisi kwenda, kuna sisi kwenda. 131 00:05:51,080 --> 00:05:54,992 Na sasa tuna fasta kwamba - pretty much nzuri ya kutosha 132 00:05:54,992 --> 00:05:56,200 kwa ajili ya show. 133 00:05:56,200 --> 00:05:59,710 >> Sasa hatimaye - sorry Ramon - sisi pia kuwa baadhi ya vifungo hapa. 134 00:05:59,710 --> 00:06:04,280 DDR2, ya michezo favorite labda, na kama mimi hit hii, sisi sasa kupata athari hii. 135 00:06:04,280 --> 00:06:07,190 Unaweza kukumbuka kwamba kutoka sehemu mbili ya CS50Live. 136 00:06:07,190 --> 00:06:11,430 Kama sisi kushinikiza juu ya kichwa cha habari, hii ni nini sisi unaweza hit kama kitu kweli inakwenda vibaya, 137 00:06:11,430 --> 00:06:12,890 sisi ni kupata kwamba screen huko. 138 00:06:12,890 --> 00:06:19,620 Na sasa mwisho, nadhani ni wakati kwa sekunde 60 ya Rob. 139 00:06:19,620 --> 00:06:21,520 Oh, mwana wa - 140 00:06:21,520 --> 00:06:24,520 >> [BASS Guitar ina] 141 00:06:24,520 --> 00:06:29,632 142 00:06:29,632 --> 00:06:30,340 Rob: Oh, kuja juu! 143 00:06:30,340 --> 00:06:31,810 Kutumia baadhi tu video mnyama! 144 00:06:31,810 --> 00:06:34,780 >> [Music ina] 145 00:06:34,780 --> 00:06:46,030 146 00:06:46,030 --> 00:06:47,300 >> [WOMAN ANAZUNGUMZA Kijapani] 147 00:06:47,300 --> 00:07:09,150 148 00:07:09,150 --> 00:07:11,410 >> Hivi karibuni katika habari mara makala kuhusu CS50 149 00:07:11,410 --> 00:07:13,500 katika tovuti maarufu inayojulikana kama Maisha Hacker. 150 00:07:13,500 --> 00:07:16,990 Sasa ni moja ya wanafunzi wako, Annabel kutoka Australia, alimkuta makala 151 00:07:16,990 --> 00:07:18,880 na kwa upande CS50 yenyewe. 152 00:07:18,880 --> 00:07:24,035 Yeye sasa waliojiunga na darasa na angependa kusema hello. 153 00:07:24,035 --> 00:07:24,910 ANNABEL: Hello dunia. 154 00:07:24,910 --> 00:07:29,020 Jina langu ni Annabel, na mimi nina kutoka Queensland, Australia. 155 00:07:29,020 --> 00:07:33,430 sababu mimi nina kuchukua darasa hili ni kwa sababu nikaona baada ya juu Maisha Hacker, 156 00:07:33,430 --> 00:07:37,740 na alijua kwamba hii ilikuwa muhimu kwa kuziba pengo kati ya kuwa Newbie, 157 00:07:37,740 --> 00:07:40,510 na baadaye katika CS. 158 00:07:40,510 --> 00:07:45,320 Kuchukua kozi hii pia kuwa daraja katika pande nyingi kwa ajili ya mwanangu wenye ugonjwa wa akili 159 00:07:45,320 --> 00:07:48,440 ambaye anapenda IT. 160 00:07:48,440 --> 00:07:51,105 Mimi pia matumaini kwamba na mwisho kujenga 161 00:07:51,105 --> 00:07:54,340 mipango ya kusaidia binti yangu dyslexic. 162 00:07:54,340 --> 00:07:56,764 Hivi sasa mimi ni mhasibu, pamoja na riba kubwa 163 00:07:56,764 --> 00:08:00,300 katika teknolojia, mali isiyohamishika, bustani, na ala ya muziki. 164 00:08:00,300 --> 00:08:03,133 165 00:08:03,133 --> 00:08:08,098 Jina langu ni Annabel, na hii ni CS50. 166 00:08:08,098 --> 00:08:10,500 >> SPIKA: Naomba ijayo kuanzisha Betty, 167 00:08:10,500 --> 00:08:13,057 ambao pia kama kusema hello. 168 00:08:13,057 --> 00:08:13,890 BETTY: Hello, dunia. 169 00:08:13,890 --> 00:08:16,730 Jina langu ni Betty, na mimi nina kutoka kusini mwa California. 170 00:08:16,730 --> 00:08:19,290 Mimi kuchukua kozi hii kwa sababu jamii yetu leo 171 00:08:19,290 --> 00:08:21,910 inaonekana kuwa lengo la programu. 172 00:08:21,910 --> 00:08:24,625 Programu ni kuwa na muhimu kwa ajili ya maisha yetu. 173 00:08:24,625 --> 00:08:26,750 Na kwa kweli, nadhani ni tayari kimsingi sasa, 174 00:08:26,750 --> 00:08:29,800 kwa sababu mambo mengi ambayo sisi kutumia na kuingiza programu 175 00:08:29,800 --> 00:08:31,840 ili waweze kuundwa. 176 00:08:31,840 --> 00:08:37,012 Kimsingi, sisi ni kwenda kuwa kwa lengo la baadaye kujazwa 177 00:08:37,012 --> 00:08:38,720 na teknolojia, na programu ni kwenda 178 00:08:38,720 --> 00:08:40,909 kuwa sehemu muhimu ya kwamba siku zijazo. 179 00:08:40,909 --> 00:08:43,909 Hivyo nadhani ni kitu kwamba ni kweli baridi, 180 00:08:43,909 --> 00:08:46,370 na kwamba mimi lazima pengine kupata kujifunza yake. 181 00:08:46,370 --> 00:08:50,170 Hivyo yeah, jina langu ni Betty, na hii ni CS50. 182 00:08:50,170 --> 00:08:51,920 DAVID J Malan: Pichani hapa wakati huo huo, ni 183 00:08:51,920 --> 00:08:55,150 Raja kutoka India, ambaye ana kujipatia hivyo kuzama katika CS50 184 00:08:55,150 --> 00:08:58,410 kwamba yeye inaonekana alikuwa na ni chale juu ya ngozi yake. 185 00:08:58,410 --> 00:08:59,370 >> Na sasa, tweet. 186 00:08:59,370 --> 00:09:03,280 Hii moja kutoka Carter katika Virginia, ambao aliandika sisi na hii - "CONSENTINO na mimi 187 00:09:03,280 --> 00:09:06,860 ni kufanya matumizi mazuri ya theluji siku yangu kuangalia wiki moja ya CS50 Harvard ya 188 00:09:06,860 --> 00:09:09,800 juu ya TV kupitia Chromecast na YouTube. " 189 00:09:09,800 --> 00:09:10,780 CONSENTINO ni nani? 190 00:09:10,780 --> 00:09:13,840 Naam, inaonekana yeye ni paka wake, lakini kwa kweli, picha hapa pamoja 191 00:09:13,840 --> 00:09:17,047 kwa miguu Carter, ni kubwa screen TV katika background. 192 00:09:17,047 --> 00:09:19,130 Na inaonekana kuna kweli kwa kutumia Chromecast 193 00:09:19,130 --> 00:09:22,937 mradi CS50 ya wiki moja kwenye kwamba screen kubwa TV wirelessly. 194 00:09:22,937 --> 00:09:26,020 Sasa Chromecast, kama wewe si wa utambuzi, ni kweli ni aina ya kifaa nadhifu. 195 00:09:26,020 --> 00:09:29,420 Ni haki nafuu kuziba kwamba unaweza kuweka ndani ya nyuma ya kompyuta yako 196 00:09:29,420 --> 00:09:31,090 katika bandari HDMI. 197 00:09:31,090 --> 00:09:34,860 Ina upatikanaji Wi-Fi, na kimsingi utapata mkondo wireless 198 00:09:34,860 --> 00:09:38,650 bidhaa kutoka mbali wako kwenye TV yako, au hata kudhibiti TV yako 199 00:09:38,650 --> 00:09:41,894 na kushusha maudhui kama video moja kwa moja yake. 200 00:09:41,894 --> 00:09:44,560 Na sasa kumbuka kutoka Mohamed, moja ya wanafunzi wako katika Pakistan, 201 00:09:44,560 --> 00:09:47,620 ambao hivi karibuni kugundua udadisi hii - inaonekana 202 00:09:47,620 --> 00:09:50,060 kama wewe kwenda google.com juu ya tukio na tafuta 203 00:09:50,060 --> 00:09:53,860 kwa ajili yangu, David J. Malan, inaonekana guy hii inakuja up mara moja katika muda. 204 00:09:53,860 --> 00:09:56,830 David H. Malan, ambaye inaonekana Tibamaungo wa Uingereza ambaye 205 00:09:56,830 --> 00:09:59,041 inaonekana ni kubwa sana kama mimi. 206 00:09:59,041 --> 00:10:01,040 Sasa ni zamu nje kama wewe bonyeza kiungo maoni 207 00:10:01,040 --> 00:10:03,600 katika chini kona unaweza kweli ripoti ya tatizo, 208 00:10:03,600 --> 00:10:05,170 kama mambo kuwa makosa kwa Google. 209 00:10:05,170 --> 00:10:07,560 Na napenda - tangu sisi ni kwenye mtandao 210 00:10:07,560 --> 00:10:10,910 hapa - kama unaweza kusaidia guy nje, na kweli bonyeza kiungo kwamba makosa juu juu, 211 00:10:10,910 --> 00:10:14,680 na tu kutaja kwamba David H. Malan si kwa kweli David J. Malan. 212 00:10:14,680 --> 00:10:17,550 >> Sasa kuwa wa haki, kuna pengine ni David H. Malan, 213 00:10:17,550 --> 00:10:19,550 na yeye pengine ni Tibamaungo wa Uingereza, 214 00:10:19,550 --> 00:10:21,840 hivyo basi si ripoti ya kitu kingine chochote kama makosa, 215 00:10:21,840 --> 00:10:25,240 lakini tu kwamba picha pengine amechaguliwa algorithmically 216 00:10:25,240 --> 00:10:27,480 kimakosa na seva ya Google. 217 00:10:27,480 --> 00:10:32,179 >> Na sasa hujambo kutoka CS50 ya rafiki, Profesa Harry Lewis. 218 00:10:32,179 --> 00:10:34,720 Profesa Harry Lewis kwa kweli Profesa wangu mwenyewe miaka iliyopita 219 00:10:34,720 --> 00:10:38,170 wakati mimi alichukua kozi kubwa katika nadharia ya hesabu. 220 00:10:38,170 --> 00:10:42,600 Bila shaka nadharia ambayo wewe kuchunguza mipaka ya msingi ya computation, 221 00:10:42,600 --> 00:10:45,350 na nini hasa kompyuta na hawezi kufanya. 222 00:10:45,350 --> 00:10:47,910 Sisi hivi karibuni alitembelea Profesa Lewis katika ofisi yake 223 00:10:47,910 --> 00:10:50,665 kuangalia baadhi teknolojia ya zamani. 224 00:10:50,665 --> 00:10:53,790 PROFESSOR HARRY LEWIS: Mimi Harry Lewis, Mimi nina profesa wa Sayansi ya Kompyuta 225 00:10:53,790 --> 00:10:55,060 hapa katika Harvard. 226 00:10:55,060 --> 00:11:01,890 Nimekuja Harvard mwaka 1964 kama Freshman, na ila kwa muda wa miaka mitatu 227 00:11:01,890 --> 00:11:04,525 mbali wakati wa Vita ya Vietnam Nimekuwa hapa tangu wakati huo. 228 00:11:04,525 --> 00:11:08,870 Basi, mimi sasa kichwa shahada ya kwanza mpango katika sayansi ya kompyuta, 229 00:11:08,870 --> 00:11:12,520 na nimekuwa kufundishwa kura ya kozi mbalimbali zaidi ya miaka. 230 00:11:12,520 --> 00:11:14,870 Na ningependa kuwaambia kidogo kuhusu baadhi 231 00:11:14,870 --> 00:11:19,530 ya mambo ya kuvutia kwamba wamekwenda juu ya Harvard, ambayo mimi 232 00:11:19,530 --> 00:11:22,110 kuwa na baadhi ya kuwasiliana zaidi ya miaka. 233 00:11:22,110 --> 00:11:27,070 >> Yake ni shahada ya kwanza yangu Thesis, mwaka 1968, ambayo 234 00:11:27,070 --> 00:11:30,610 Niliandika dimensional mbili lugha ya programu. 235 00:11:30,610 --> 00:11:36,555 Hii ni msingi kumbukumbu ndege, wale ni kidogo magnetic donuts 236 00:11:36,555 --> 00:11:39,080 kwamba ni strung juu ya intersections ya waya. 237 00:11:39,080 --> 00:11:44,320 Na hii ni njia kumbukumbu ilifanyika kabla ya halvledare 238 00:11:44,320 --> 00:11:47,560 akawa teknolojia faida. 239 00:11:47,560 --> 00:11:52,900 Hii ni mapema 15 gigabyte iPod, ambayo mimi kuweka karibu 240 00:11:52,900 --> 00:11:56,200 si kwa sababu ya mtu yeyote hisia na kuwa na 15 gigabyte iPod, 241 00:11:56,200 --> 00:12:00,740 lakini kwa sababu hii ni 70 megabyte kuendesha gari, na wao 242 00:12:00,740 --> 00:12:05,820 akaenda katika anatoa disk waliokuwa juu ya ukubwa wa mashine ya kuosha. 243 00:12:05,820 --> 00:12:07,820 Ili kwamba ilikuwa 70 tu megabytes ya kumbukumbu, kwamba 244 00:12:07,820 --> 00:12:10,359 anatoa baadhi ya hisia ya jinsi mambo uhusika. 245 00:12:10,359 --> 00:12:11,900 DAVID J Malan: Na sasa tweet mwingine. 246 00:12:11,900 --> 00:12:13,820 Hii moja kutoka William katika United Kingdom 247 00:12:13,820 --> 00:12:17,750 ambaye aliandika, "David J. Malan, baada ya kidogo ya Google kunyemelea, ni zamu nje Rob 248 00:12:17,750 --> 00:12:19,060 ina ndugu pacha. 249 00:12:19,060 --> 00:12:21,830 Je, sisi kumtia CS50Live na kucheza doa tofauti? " 250 00:12:21,830 --> 00:12:23,690 Hivyo William, hii ni kweli kesi. 251 00:12:23,690 --> 00:12:26,660 CS50 ya mwenyewe Rob Bowden gani kuwa na ndugu pacha. 252 00:12:26,660 --> 00:12:31,620 Kwa kweli, hapa ni Rob na Paul - au Paulo na - picha hapa 253 00:12:31,620 --> 00:12:35,280 ni Bowdens mbili, ambao wote wana kweli TFed kwa CS50 katika siku za nyuma, 254 00:12:35,280 --> 00:12:38,050 na kwa kweli Rob sasa ni juu ya CS50 kamili timu wakati. 255 00:12:38,050 --> 00:12:40,510 >> Sasa, sisi pia kidogo ya Google kunyemelea, na ni zamu nje 256 00:12:40,510 --> 00:12:43,310 kwamba ndugu pacha Paul ina YouTube yake mwenyewe 257 00:12:43,310 --> 00:12:46,410 channel ambayo yeye matamanio mwenyewe kidogo ya mchekeshaji. 258 00:12:46,410 --> 00:12:47,548 Hebu tuangalie. 259 00:12:47,548 --> 00:12:49,940 >> PAUL BOWDEN: Hey guys. 260 00:12:49,940 --> 00:12:51,460 Paul Bowden hapa tena. 261 00:12:51,460 --> 00:12:54,900 Mimi nina nyuma na kujaribu yangu ya pili katika msimamo up. 262 00:12:54,900 --> 00:12:58,910 Ndiyo, najua kwamba mimi nina kukaa chini. 263 00:12:58,910 --> 00:13:02,810 mara ya kwanza hakwenda kama vizuri kama mimi alikuwa na matumaini kwa, 264 00:13:02,810 --> 00:13:05,840 lakini mimi alichukua ushauri kwamba guys inayotolewa, 265 00:13:05,840 --> 00:13:10,290 na wakati huu mimi nina kwenda kuwa ni kidogo chini ya Awkward, na kidogo bora 266 00:13:10,290 --> 00:13:13,326 juu ya utani mbele. 267 00:13:13,326 --> 00:13:16,450 DAVID J Malan: Sasa kama wewe Ningependa kujiunga na channel Paulo juu ya YouTube, 268 00:13:16,450 --> 00:13:20,070 na unapaswa, kichwa na URL hii hapa. 269 00:13:20,070 --> 00:13:23,390 Sasa ndugu Rob ni ya kweli fahari sana ya ndugu yake pacha. 270 00:13:23,390 --> 00:13:27,980 Kwa kweli, pichani hapa ni Rob kama GIF animated kufanya ngumi pampu. 271 00:13:27,980 --> 00:13:31,360 Sasa hii ana kweli imekuwa kusambazwa kwenye mtandao kidogo kabisa. 272 00:13:31,360 --> 00:13:33,240 Hivyo kama wewe Google karibu kwa picha hii hapa, 273 00:13:33,240 --> 00:13:36,110 unaweza hata kufanya hii yako karatasi ya Kupamba Ukuta kama ungependa. 274 00:13:36,110 --> 00:13:37,130 Na ni lazima. 275 00:13:37,130 --> 00:13:41,390 >> Sasa Rob hapa ilikuwa cheering yake ndugu juu ya katika maarufu mchezo Kaskazini 276 00:13:41,390 --> 00:13:43,232 kuonyesha katika ambayo Paulo alikuwa mshiriki. 277 00:13:43,232 --> 00:13:44,440 Sasa, ni nini mchezo show ilikuwa hivyo? 278 00:13:44,440 --> 00:13:46,148 Vizuri tutaweza kuondoka na wewe, internet, 279 00:13:46,148 --> 00:13:49,210 kufikiri nini hasa mchezo show Paul Bowden walishiriki juu, 280 00:13:49,210 --> 00:13:53,140 na kama unaweza kupata kwamba nje, hebu kujua katika Facebook, Reddit, au Twitter, 281 00:13:53,140 --> 00:13:57,510 na tutaweza kuona kama hatuwezi kuonyesha kipande cha picha ya kidogo katika CS50Live ijayo. 282 00:13:57,510 --> 00:13:59,330 >> Na sasa kipande wa vifaa. 283 00:13:59,330 --> 00:14:02,080 Kama unaweza kuwa na habari, CS50 katika baadhi ya juu ya sehemu ya chuo 284 00:14:02,080 --> 00:14:04,060 anatumia kipande ya vifaa inayojulikana kama Arduino. 285 00:14:04,060 --> 00:14:06,194 Picha hapa kwa mfano, ni Arduino Uno, 286 00:14:06,194 --> 00:14:08,610 kidogo mzunguko wa bodi kwamba unaweza kuungana na kompyuta, 287 00:14:08,610 --> 00:14:11,010 na kisha kweli mpango hivyo kwa kuandika C + code, 288 00:14:11,010 --> 00:14:14,710 na kisha moto ndani vifaa hivyo kwamba inaweza kweli nitafanya mipango. 289 00:14:14,710 --> 00:14:17,140 Sasa ni moja ya wanafunzi wako hapa, Areor, aliamua 290 00:14:17,140 --> 00:14:20,110 waya up Arduino Uno kwa kompyuta yake 291 00:14:20,110 --> 00:14:24,350 na kisha kutekeleza, kama unaweza kuamini kuwa, Set Tatizo 2 ya Kaisari. 292 00:14:24,350 --> 00:14:27,030 >> Sasa hatuna audio yoyote katika video hii, lakini hebu kuvuta 293 00:14:27,030 --> 00:14:28,755 na kuangalia matokeo ya mwisho. 294 00:14:28,755 --> 00:14:43,112 295 00:14:43,112 --> 00:14:45,570 Sasa kama wewe ni Redditer, wewe kuwa niliona post hii 296 00:14:45,570 --> 00:14:49,290 michache ya wiki iliyopita matangazo sehemu mbili ya CS50Live. 297 00:14:49,290 --> 00:14:52,900 Sasa ni moja ya wanafunzi wako, Louis kutoka Montreal, Canada, baada ya sehemu ambayo 298 00:14:52,900 --> 00:14:55,556 kindly posted, "Wow, kwamba moja alikuwa ni wa kihistoria. " 299 00:14:55,556 --> 00:15:00,600 Tu kusahihisha mwenyewe dakika chache baadaye na hariri - "hysterical, HA HA." 300 00:15:00,600 --> 00:15:02,410 Hivyo tutaweza kuchukua ama njia, lakini kile kilichokuwa 301 00:15:02,410 --> 00:15:05,130 funnier zaidi ya kwamba, ni kwamba Chris kutoka Toronto, Canada 302 00:15:05,130 --> 00:15:08,290 kisha ikifuatiwa na kama ifuatavyo, "Itakuwa hysterical 303 00:15:08,290 --> 00:15:12,670 kama sehemu ya pili alikuwa ni wa kihistoria kama matokeo ya wafanyakazi wa uzalishaji kuona 304 00:15:12,670 --> 00:15:13,490 maoni. " 305 00:15:13,490 --> 00:15:16,800 Vizuri kweli sisi hivyo, na sasa baadhi ya historia ya zaidi. 306 00:15:16,800 --> 00:15:18,360 >> Sisi vunjwa hii kutoka nyaraka. 307 00:15:18,360 --> 00:15:22,700 Hii ni katika magazine, Popular Umeme, suala kati ya mwaka 1975, 308 00:15:22,700 --> 00:15:25,850 ambayo alichukua kichwa cha habari hii, Dunia ya kwanza ya Minicomputer Kit 309 00:15:25,850 --> 00:15:27,440 na mpinzani Commercial Models. 310 00:15:27,440 --> 00:15:29,050 Altair 8800. 311 00:15:29,050 --> 00:15:31,940 Sasa wakati kulikuwa na si kweli lugha ya programu 312 00:15:31,940 --> 00:15:35,110 na ambayo inaweza kufanya hili mashine kutatua matatizo kwa urahisi sana, 313 00:15:35,110 --> 00:15:36,930 na hivyo Harvard vijana mwanafunzi wakati 314 00:15:36,930 --> 00:15:39,810 jina lake Bill Gates aliamua na baadhi ya marafiki yake 315 00:15:39,810 --> 00:15:43,700 kuandika mkalimani kwanza kwa lugha ya programu, unaojulikana kama msingi, 316 00:15:43,700 --> 00:15:45,900 ambayo kwa gari kipande hii ya vifaa. 317 00:15:45,900 --> 00:15:48,220 Sisi alichukua stroll hivi karibuni na Profesa Harry Lewis 318 00:15:48,220 --> 00:15:51,040 kwa Maxwell Dworkin, Harvard ya jengo sayansi ya kompyuta, ambapo 319 00:15:51,040 --> 00:15:55,170 chanzo kanuni kwa ajili ya kwamba awali BASIC mkalimani bado lipo. 320 00:15:55,170 --> 00:15:57,162 Na sisi kuuliza yeye kama yeye inaweza kutupa ziara. 321 00:15:57,162 --> 00:15:58,870 PROFESSOR HARRY LEWIS: Una nini hapa 322 00:15:58,870 --> 00:16:03,780 ni orodha ya kipande ya kwanza ya programu 323 00:16:03,780 --> 00:16:08,470 iliyoandikwa na Bill Gates na Paul Allen, waanzilishi wa Microsoft. 324 00:16:08,470 --> 00:16:10,790 Hivyo code ni ya kuvutia kwa sababu mbili. 325 00:16:10,790 --> 00:16:13,720 Awali ya yote ikawa Bidhaa Microsoft wa kwanza, 326 00:16:13,720 --> 00:16:20,080 ambayo ilikuwa mkalimani kwa msingi lugha ya programu. 327 00:16:20,080 --> 00:16:23,190 Na pili, hii ilikuwa moja ya majaribio ya kwanza 328 00:16:23,190 --> 00:16:28,840 kujenga mkalimani ili kawaida watu wanaweza kutumia kompyuta binafsi. 329 00:16:28,840 --> 00:16:30,900 Hivyo Bill Gates mara shahada ya kwanza katika Harvard. 330 00:16:30,900 --> 00:16:33,070 Mimi kuanza kufundisha katika Harvard mwaka 1974. 331 00:16:33,070 --> 00:16:38,390 Hii ilifanyika mwaka 1975, hivyo ilikuwa mapema katika kazi yake na mapema katika kazi yangu. 332 00:16:38,390 --> 00:16:42,040 Mimi kwa kweli kufundisha Bill katika Bila shaka kote wakati huu. 333 00:16:42,040 --> 00:16:45,380 Paul Allen hakuwa Harvard mwanafunzi, lakini yeye 334 00:16:45,380 --> 00:16:49,200 alikuwa shule ya sekondari classmate ya Bill Gates. 335 00:16:49,200 --> 00:16:51,990 >> Kama wewe kuja na kuangalia tangazo, itabidi 336 00:16:51,990 --> 00:16:56,600 kweli kupata jina tatu, Monte Davidoff, ambaye alikuwa Gates 'classmate hapa 337 00:16:56,600 --> 00:16:57,500 katika Harvard. 338 00:16:57,500 --> 00:16:59,600 OK, hivyo hapa ni kuvutia maoni hapa. 339 00:16:59,600 --> 00:17:05,400 Inasema, "Katika 4k unaweza kufuta mraba mzizi lakini kwa loops lazima bado kazi. " 340 00:17:05,400 --> 00:17:11,310 OK, hivyo nini maana ya ni kwamba kuna mara mbili za kukusanya mpango huu. 341 00:17:11,310 --> 00:17:16,140 Mmoja alikuwa na kukimbia kwenye toleo wa kompyuta hii Altair 342 00:17:16,140 --> 00:17:19,339 kwamba tu walikuwa na maneno 4k ya kumbukumbu. 343 00:17:19,339 --> 00:17:22,430 Maneno 4096 ya kumbukumbu. 344 00:17:22,430 --> 00:17:28,020 Lakini toleo la kubwa na 8 K, na hivyo nini hii anasema ni kwamba katika toleo 4k 345 00:17:28,020 --> 00:17:31,030 alikuwa na kufuta baadhi code kufanya hivyo fit. 346 00:17:31,030 --> 00:17:33,050 Na moja ya mambo kwamba itakuwa ilifutwa 347 00:17:33,050 --> 00:17:37,960 itakuwa mraba mizizi mara kwa mara, lakini inaonekana kwa loops 348 00:17:37,960 --> 00:17:41,220 lazima bado kazi, hata wakati wewe ni kuandaa chini 349 00:17:41,220 --> 00:17:46,150 kwa ajili tu ya toleo 4k ya kompyuta kit. 350 00:17:46,150 --> 00:17:49,750 >> Sasa kama wewe kuvuta kwamba kanuni chanzo unaweza kuwa niliona jina ukoo. 351 00:17:49,750 --> 00:17:52,280 Hakika, mtumiaji Holloway mara mtu ambaye 352 00:17:52,280 --> 00:17:56,282 kuchapishwa chanzo hiki code katika Aprili 1975. 353 00:17:56,282 --> 00:17:59,240 Sasa wale ambao wameweza kuulizwa maswali, labda juu ya Reddit au mahali pengine 354 00:17:59,240 --> 00:18:03,274 kwa CS50, anaweza kuwa kuja hela Glenn Holloway, mmoja wa wajumbe wa timu CS50 ya 355 00:18:03,274 --> 00:18:05,440 ambaye kwa kweli wamekuwa na Bila shaka kwa muda fulani, 356 00:18:05,440 --> 00:18:09,160 na sana neema inatoa mara nyingi kabisa kuwasaidia wanafunzi kupitia mtandao 357 00:18:09,160 --> 00:18:11,140 na matatizo yoyote ili wapate kutatua. 358 00:18:11,140 --> 00:18:13,770 Na hakika, inaonekana alikuwa kufanya hivyo hata katika yesteryear 359 00:18:13,770 --> 00:18:16,320 wakati kanuni hii chanzo zinahitajika kuchapishwa. 360 00:18:16,320 --> 00:18:20,240 >> Sasa hebu kufunga kuwasilisha siku, katika kweli hii ni habari kweli kuvunja. 361 00:18:20,240 --> 00:18:23,577 Wazi hivi karibuni alikuwa mradi huu tango, mpango wa Google 362 00:18:23,577 --> 00:18:25,660 na idadi ya nyingine makampuni ya kweli kujenga 363 00:18:25,660 --> 00:18:28,830 programu na ambayo unaweza kutumia simu au sawa kifaa wireless 364 00:18:28,830 --> 00:18:31,150 na kutembea yako mazingira ya kimwili 365 00:18:31,150 --> 00:18:34,960 na kweli kufanya mfano 3D yake - ambayo kwa kawaida ni incredibly wakati 366 00:18:34,960 --> 00:18:36,340 mwingi na / au ghali. 367 00:18:36,340 --> 00:18:40,350 Na bado, na teknolojia ya leo ninyi wanaweza hivi karibuni kuwa kufanya hivyo mwenyewe, 368 00:18:40,350 --> 00:18:43,150 na unaweza hivi karibuni kuwa kuandika programu mwenyewe na ambayo 369 00:18:43,150 --> 00:18:44,930 kujiinua mbinu hii mpya. 370 00:18:44,930 --> 00:18:45,680 Hebu tuangalie. 371 00:18:45,680 --> 00:18:49,530 372 00:18:49,530 --> 00:18:52,540 >> JOHNNY LEE: jina langu ni Johnny Lee, na mimi kazi katika teknolojia ya juu 373 00:18:52,540 --> 00:18:54,560 na miradi katika kundi Google. 374 00:18:54,560 --> 00:18:56,690 Timu yetu ndogo hapa, msingi katika California, 375 00:18:56,690 --> 00:19:01,200 imekuwa ikifanya kazi na vyuo vikuu, maabara ya utafiti, na washirika viwanda 376 00:19:01,200 --> 00:19:05,220 kuvuna miaka 10 ya mwisho ya utafiti katika robotteknik na kompyuta maono 377 00:19:05,220 --> 00:19:09,260 kwa makini teknolojia ambayo ndani ya kipekee sana simu ya mkononi. 378 00:19:09,260 --> 00:19:14,100 Sisi ni viumbe wa kimwili kwamba kuishi katika dunia 3D, 379 00:19:14,100 --> 00:19:17,690 vifaa bado ya simu leo kudhani kwamba ulimwengu wa kimwili 380 00:19:17,690 --> 00:19:19,820 kuishia katika mipaka ya screen. 381 00:19:19,820 --> 00:19:23,010 Lengo letu ni kutoa Mkono vifaa wadogo binadamu 382 00:19:23,010 --> 00:19:24,665 uelewa wa nafasi na mwendo. 383 00:19:24,665 --> 00:19:26,540 Eitan Marder-EPPSTEIN: Hii ni kwenda kuruhusu 384 00:19:26,540 --> 00:19:28,480 watu wa kiutendaji na mazingira yao 385 00:19:28,480 --> 00:19:30,360 katika njia tu Kimsingi tofauti. 386 00:19:30,360 --> 00:19:33,330 Tunaweza mfano katika wanandoa masaa kitu ambacho 387 00:19:33,330 --> 00:19:36,070 itachukua muda wa miezi sisi au hata miaka kabla, 388 00:19:36,070 --> 00:19:38,670 kwa sababu hatukuwa na hii teknolojia kwa urahisi. 389 00:19:38,670 --> 00:19:41,760 >> TED LARSON: Nini kinatokea kama wewe na wote wa vipande hayo katika simu? 390 00:19:41,760 --> 00:19:46,280 Jinsi gani kwamba mabadiliko ya kile simu ni? 391 00:19:46,280 --> 00:19:48,460 >> JOHNNY LEE: Tuna kuundwa mfano simu 392 00:19:48,460 --> 00:19:52,150 zenye yenye customized vifaa na programu, iliyoundwa 393 00:19:52,150 --> 00:19:56,600 kuruhusu simu kufuatilia ni mwendo katika full 3D, katika muda halisi 394 00:19:56,600 --> 00:19:58,120 kama wewe kushikilia yake. 395 00:19:58,120 --> 00:20:01,840 Sensorer haya kufanya zaidi ya milioni robo vipimo 3D 396 00:20:01,840 --> 00:20:05,980 kila wimbo wa pili, kuongezea nafasi na mzunguko wa simu, 397 00:20:05,980 --> 00:20:09,760 fusing habari hii katika moja 3D mfano wa mazingira. 398 00:20:09,760 --> 00:20:12,625 >> Chris Anderson: Tuna tatizo aitwaye urambazaji ndani ya nyumba. 399 00:20:12,625 --> 00:20:14,300 Na ni ufumbuzi wa tatizo hilo. 400 00:20:14,300 --> 00:20:17,383 >> Eitan Marder-EPPSTEIN: Ni nyimbo yako nafasi kama wewe kwenda duniani kote. 401 00:20:17,383 --> 00:20:19,070 Na pia hufanya ramani ya kwamba. 402 00:20:19,070 --> 00:20:23,114 >> CHASE COBB: Fikiria kuwa wewe Scan sehemu ndogo ya chumba yako ya kuishi. 403 00:20:23,114 --> 00:20:27,250 Na kisha ni uwezo wa kuzalisha kidogo dunia mchezo ndani yake. 404 00:20:27,250 --> 00:20:29,900 Sijui ya mtu mwingine yeyote mtawala au michezo ya kubahatisha 405 00:20:29,900 --> 00:20:31,660 kifaa kwamba anaweza kufanya hivyo kwa sasa. 406 00:20:31,660 --> 00:20:33,250 >> TULLY FOOTE: Kuweka yote haya kwa pamoja, wao 407 00:20:33,250 --> 00:20:35,041 vunjwa katika wataalamu kutoka duniani kote 408 00:20:35,041 --> 00:20:37,360 na got yao wote wanaofanya kazi juu ya mradi huo. 409 00:20:37,360 --> 00:20:40,366 >> REMI EL-QUAZZANE: Wale ni caliber kubwa sana ya watu. 410 00:20:40,366 --> 00:20:40,865 Kwa nini? 411 00:20:40,865 --> 00:20:42,302 Ni rahisi sana. 412 00:20:42,302 --> 00:20:44,782 Nadhani, kwa kweli, watu wanaoamini katika maono. 413 00:20:44,782 --> 00:20:47,240 JOHNNY LEE: Ujanibishaji wa ramani ni huko kwenye simu yako, 414 00:20:47,240 --> 00:20:49,000 na wewe tu matumizi yake. 415 00:20:49,000 --> 00:20:51,750 Ni uwezo huu na kufuata nyayo ya watu wengine. 416 00:20:51,750 --> 00:20:55,070 >> Dirk THOMAS: Na sisi wanaweza pia kufaidika na kutokana na kile sisi kufanya kwa ajili ya mradi 417 00:20:55,070 --> 00:20:57,258 nyuma kwa wazi chanzo jamii. 418 00:20:57,258 --> 00:20:59,350 >> CHASE COBB: Matumizi yake kwa wasioona, 419 00:20:59,350 --> 00:21:01,880 na kuwapa auditory maoni wapi wao wanaenda. 420 00:21:01,880 --> 00:21:04,205 >> Vince PASCUAL: Kuwa uwezo wa ramani ya nyumba yako, 421 00:21:04,205 --> 00:21:07,030 kugeuka kuwa karibu, napenda kuona ni jinsi gani samani huu kazi katika chumba. 422 00:21:07,030 --> 00:21:09,580 >> Eitan Marder-EPPSTEIN: Virtual madirisha tamaduni mbalimbali, 423 00:21:09,580 --> 00:21:11,413 I mean uwezekano ni kweli kutokuwa na mwisho. 424 00:21:11,413 --> 00:21:14,015 425 00:21:14,015 --> 00:21:16,890 JOHNNY LEE: Zaidi ya miezi michache ijayo sisi itakuwa kusambaza vifaa vya dev 426 00:21:16,890 --> 00:21:20,566 kwa watengenezaji programu ya kuendeleza maombi na algorithms juu 427 00:21:20,566 --> 00:21:22,572 ya jukwaa hili. 428 00:21:22,572 --> 00:21:27,240 Na sisi ni tu katika mwanzo, na tunajua kuna mengi zaidi kazi ya kufanya. 429 00:21:27,240 --> 00:21:30,541 Lakini sisi ni msisimko juu ya ambapo ni kwenda. 430 00:21:30,541 --> 00:21:35,180 baadaye ni wa kushangaza, na tunaamini tunaweza kujenga hivyo kwa kasi pamoja. 431 00:21:35,180 --> 00:21:41,137 432 00:21:41,137 --> 00:21:43,970 DAVID J. Malan: Na sasa wakati ve pengine wamekuwa wakisubiri kwa. 433 00:21:43,970 --> 00:21:45,990 Unaweza kukumbuka kwamba katika mwisho sehemu sisi 434 00:21:45,990 --> 00:21:49,970 pamoja tweet hii kutoka CS50 ya mwenyewe Andrew Hill, ambaye miezi michache nyuma aliandika sisi 435 00:21:49,970 --> 00:21:52,650 hii, "David J Malan, ambapo ni taa yangu?" 436 00:21:52,650 --> 00:21:55,690 Sasa tangu wakati huo idadi ya una videos in kufanya kesi yako 437 00:21:55,690 --> 00:21:59,120 kama kwa nini unapaswa kuwa karibu mpokeaji wa taa CS50 dawati. 438 00:21:59,120 --> 00:22:02,650 Sisi mawazo tunatarajia kushiriki kwa mara ya kwanza mmoja kutoka Mohamed katika Morocco. 439 00:22:02,650 --> 00:22:05,800 Ni zinageuka kuwa siku ya kuzaliwa Mohammed ya ilikuwa wiki hii iliyopita, hivyo naomba pia 440 00:22:05,800 --> 00:22:10,050 kwa niaba ya CS50 kusema furaha 19 ya kuzaliwa kwa Mohamed. 441 00:22:10,050 --> 00:22:11,996 Hebu tuangalie. 442 00:22:11,996 --> 00:22:15,080 >> Mohammed: Hello, mimi ni Mohamed kutoka Morocco. 443 00:22:15,080 --> 00:22:20,510 Mimi kusoma katika mji mwingine - ambayo ni kidogo mbali na mji yangu ya awali 444 00:22:20,510 --> 00:22:25,390 ambapo mimi ni hai na familia yangu - ambapo mimi kushoto dawati taa yangu. 445 00:22:25,390 --> 00:22:28,940 Basi, mimi niko hai katika mabweni na hii ni chumba changu. 446 00:22:28,940 --> 00:22:32,810 447 00:22:32,810 --> 00:22:37,440 Unaweza kuona hapa kwamba mwanga ni njano, na mimi si kweli kama hayo. 448 00:22:37,440 --> 00:22:39,250 Napendelea moja nyeupe. 449 00:22:39,250 --> 00:22:43,350 Hiyo ndiyo maana Mimi nataka taa CS50 dawati. 450 00:22:43,350 --> 00:22:47,109 Unaweza kufikiria mimi kukaa huko na kufanya kazi nayo. 451 00:22:47,109 --> 00:22:48,900 DAVID J. Malan: Na sasa kuwasilisha mwingine. 452 00:22:48,900 --> 00:22:52,700 Hii ni moja ya Emad, mwanafunzi katika Dorm chumba chake. 453 00:22:52,700 --> 00:22:54,680 >> Emad: Mimi Emad kutoka [inaudible]. 454 00:22:54,680 --> 00:22:56,605 Hivyo kwa nini mimi nataka taa dawati? 455 00:22:56,605 --> 00:22:59,760 Awali ya yote, itakuwa kutenda kama chanzo wastani wa mwanga 456 00:22:59,760 --> 00:23:03,380 kwa ajili ya masomo yangu ya shule ya sekondari, kama Nimeanza mwaka wa nne. 457 00:23:03,380 --> 00:23:06,730 Na kama vile vizuri kama kozi za online, hasa CS50. 458 00:23:06,730 --> 00:23:09,130 muhimu zaidi Sababu ni kwamba mapenzi 459 00:23:09,130 --> 00:23:11,190 kutenda kama programu kwa ajili ya kozi CS50. 460 00:23:11,190 --> 00:23:13,550 Kwa mfano, kama mtu huja katika nyumba yangu na anauliza 461 00:23:13,550 --> 00:23:17,720 jinsi gani ya kupata taa kuwa nzuri, mimi itakuwa kuwaambia kwamba CS50 darasa Wajumbe. 462 00:23:17,720 --> 00:23:21,290 Na hivyo mimi kueneza neno la CS50, na muhimu zaidi, mimi 463 00:23:21,290 --> 00:23:23,970 kumbuka kama ya maisha yangu. 464 00:23:23,970 --> 00:23:27,460 Mimi Emad, na hii ni CS50. 465 00:23:27,460 --> 00:23:30,510 >> DAVID J. Malan: Na sasa Tim kutoka Malaysia, pichani hapa katika giza. 466 00:23:30,510 --> 00:23:31,220 Kusikiliza kwa makini. 467 00:23:31,220 --> 00:24:19,030 468 00:24:19,030 --> 00:24:21,640 DAVID J. Malan: Na sasa familia ya kirafiki filamu kutoka Zevin 469 00:24:21,640 --> 00:24:24,336 katika Vancouver, British Columbia. 470 00:24:24,336 --> 00:24:25,080 >> ZEVIN: Hi huko. 471 00:24:25,080 --> 00:24:26,250 Mimi nina Zevin Lennick. 472 00:24:26,250 --> 00:24:30,925 Mimi nina kufanya EDX kwa CS50, na sisi hawawezi kupata taa yetu. 473 00:24:30,925 --> 00:24:31,675 nyumba ni giza. 474 00:24:31,675 --> 00:24:32,610 Unafikiri? 475 00:24:32,610 --> 00:24:34,530 >> SPIKA 1: Labda ni zaidi ya hapo? 476 00:24:34,530 --> 00:24:35,385 >> ZEVIN: Je, una uhakika? 477 00:24:35,385 --> 00:24:35,670 >> SPIKA 1: Labda. 478 00:24:35,670 --> 00:24:36,910 >> ZEVIN: Je, sisi kwenda kutafuta nje? 479 00:24:36,910 --> 00:24:37,620 >> SPIKA 1: Hebu kwenda. 480 00:24:37,620 --> 00:24:38,245 >> ZEVIN: Alright. 481 00:24:38,245 --> 00:24:42,030 482 00:24:42,030 --> 00:24:43,530 >> SPIKA 1: Ho, kuangalia kwamba mwanga. 483 00:24:43,530 --> 00:24:45,540 >> ZEVIN: Labda kuna taa huko. 484 00:24:45,540 --> 00:24:47,129 >> SPIKA 1: Hebu angalia nje. 485 00:24:47,129 --> 00:24:48,420 ZEVIN: Je, unataka mimi kufanya hivyo? 486 00:24:48,420 --> 00:24:49,535 SPIKA 1: Hapana, mimi itabidi kufanya hivyo. 487 00:24:49,535 --> 00:24:51,365 ZEVIN: OK. 488 00:24:51,365 --> 00:24:52,805 SPIKA 1: Kaa mbali na taa wangu! 489 00:24:52,805 --> 00:24:53,305 Oh no! 490 00:24:53,305 --> 00:24:55,634 491 00:24:55,634 --> 00:24:58,050 DAVID J. Malan: Na sasa utii kutoka Eggers katika Latvia 492 00:24:58,050 --> 00:25:03,360 ambao kwa kweli alichukua mambo up notch na filamu hii. 493 00:25:03,360 --> 00:25:05,180 >> EGGERS: (taa 1 AS) Naam, jinsi ya kufanya? 494 00:25:05,180 --> 00:25:07,250 >> WOMAN: (taa 2 AS) Mmm. 495 00:25:07,250 --> 00:25:07,750 Hello. 496 00:25:07,750 --> 00:25:20,440 497 00:25:20,440 --> 00:25:22,170 >> EGGERS: (AS lightbulb 1) Hii ni ajabu. 498 00:25:22,170 --> 00:25:25,260 >> WOMAN: (AS lightbulb 2) Ndiyo. 499 00:25:25,260 --> 00:25:26,782 Ooh! 500 00:25:26,782 --> 00:25:27,990 EGGERS: (AS lightbulb 1) Ooh! 501 00:25:27,990 --> 00:25:30,323 EGGERS: (AS BABY lightbulb) [Kicheko] wapi taa yangu ni? 502 00:25:30,323 --> 00:25:32,450 503 00:25:32,450 --> 00:25:33,920 >> EGGERS: Hi, jina langu ni Eggers. 504 00:25:33,920 --> 00:25:35,927 Na mimi kutoka Latvia. 505 00:25:35,927 --> 00:25:37,214 Na hii ni - 506 00:25:37,214 --> 00:25:38,089 SPIKA 2: Utafiti wetu. 507 00:25:38,089 --> 00:25:39,466 Kukaa tuned. 508 00:25:39,466 --> 00:25:42,220 >> EGGERS: Hapana, hii ni CS50. 509 00:25:42,220 --> 00:25:44,370 >> DAVID J. Malan: Na sasa, mwisho lakini si uchache, a 510 00:25:44,370 --> 00:25:48,520 utii kutoka Phillip katika Ujerumani. 511 00:25:48,520 --> 00:25:50,436 >> Phillip: Hey huko David, mimi nina Phil. 512 00:25:50,436 --> 00:25:52,635 Mimi nina mwanafunzi wa utambuzi sayansi kutoka Ujerumani. 513 00:25:52,635 --> 00:25:56,050 Sayansi ya utambuzi ni shamba kwamba tafiti akili ya binadamu 514 00:25:56,050 --> 00:26:01,410 na ubongo, alijiunga na kutoka tarafa kama neuroscience, saikolojia, lugha, 515 00:26:01,410 --> 00:26:03,270 na hata sayansi ya kompyuta. 516 00:26:03,270 --> 00:26:07,120 Sasa mwisho muhula, mimi alitumia muhula nje ya nchi katika Harvard. 517 00:26:07,120 --> 00:26:10,030 Na mimi pia alihudhuria kozi yako, CS50. 518 00:26:10,030 --> 00:26:13,850 >> Sasa wakati mimi kupendwa CS50, mimi kamwe got dawati yangu mwenyewe taa. 519 00:26:13,850 --> 00:26:18,340 Sasa mimi kukulia mkono wangu karibu katika kila hotuba katika jitihada za haraka 520 00:26:18,340 --> 00:26:21,405 kupata yangu juu ya hatua na kupokea CS50 yangu mwenyewe dawati 521 00:26:21,405 --> 00:26:25,510 taa - au hata tu fricking stress mpira. 522 00:26:25,510 --> 00:26:29,530 Sasa mimi hatimaye got dhiki yangu mpira katika CS50 haki, 523 00:26:29,530 --> 00:26:36,970 lakini mimi bado mateso kwa undani na kwamba ukosefu wa taa CS50 dawati katika maisha yangu. 524 00:26:36,970 --> 00:26:41,930 Hivyo Mheshimiwa David Malan, swali langu na wewe ni rahisi sana. 525 00:26:41,930 --> 00:26:45,650 Wapi yangu [Bleep] dawati taa? 526 00:26:45,650 --> 00:26:47,540 >> DAVID J. Malan: Na sasa ni historia kidogo zaidi. 527 00:26:47,540 --> 00:26:50,270 Unaweza kukumbuka zifuatazo filamu kutoka wiki moja ya CS50. 528 00:26:50,270 --> 00:26:56,450 >> [Music ina] 529 00:26:56,450 --> 00:26:59,320 >> SPIKA 3: ushindi wa hisabati na mitambo ujuzi, 530 00:26:59,320 --> 00:27:03,170 kama hii kubwa mpya moja kwa moja calculator katika Chuo Kikuu cha Harvard. 531 00:27:03,170 --> 00:27:07,050 Matatizo na nje katika hisabati kuweka kwa njia ya mashine katika fomu kutolewa 532 00:27:07,050 --> 00:27:10,270 juu ya mkanda ni usahihi kutatuliwa katika sehemu dakika 533 00:27:10,270 --> 00:27:12,790 ya muda unaotakiwa kwa ajili ya hesabu ya binadamu. 534 00:27:12,790 --> 00:27:24,170 535 00:27:24,170 --> 00:27:28,485 Iliyoundwa na kasi ya aina zote za hisabati na utafiti wa kisayansi, 536 00:27:28,485 --> 00:27:33,610 ubongo kubwa mitambo kazi kwa United States Navy mpaka mwisho vita ya. 537 00:27:33,610 --> 00:27:42,745 538 00:27:42,745 --> 00:27:44,870 DAVID J. Malan: Sasa Mark mimi ni hakuna tena katika matumizi, 539 00:27:44,870 --> 00:27:46,910 lakini bado haina kuishi hapa juu ya chuo. 540 00:27:46,910 --> 00:27:49,840 Sisi aliamua kuchukua mwisho moja kutembea na Profesa Harry Lewis 541 00:27:49,840 --> 00:27:53,080 kuangalia kwa karibu katika Harvard ya kituo cha sayansi - nyumba mpya 542 00:27:53,080 --> 00:27:54,350 kwa Harvard Mark I. 543 00:27:54,350 --> 00:27:56,600 PROFESSOR HARRY LEWIS: Hivyo tuko katika Sayansi Harvard 544 00:27:56,600 --> 00:27:59,950 Center, ambayo ni njia panda ya Harvard chuo. 545 00:27:59,950 --> 00:28:04,180 mengi ya idara ya sayansi na madarasa yao na ofisi katika hapa. 546 00:28:04,180 --> 00:28:07,190 Nini nyuma yetu hapa ni kompyuta Mark I, 547 00:28:07,190 --> 00:28:09,820 ambayo ilikuwa mapema electromechanical kompyuta. 548 00:28:09,820 --> 00:28:12,190 >> Hivyo kompyuta Mark mimi ni hapa katika Harvard 549 00:28:12,190 --> 00:28:17,580 kwa sababu Howard Hathaway Aiken, ambaye alikuwa mtu ambaye mimba na iliyoundwa 550 00:28:17,580 --> 00:28:21,350 mashine kwa kushirikiana na IBM wahandisi, 551 00:28:21,350 --> 00:28:26,220 alikuwa profesa Harvard la hisabati tekelezi. 552 00:28:26,220 --> 00:28:32,590 Na alitaka kupunguza kazi ya kutatua equations namba 553 00:28:32,590 --> 00:28:36,820 na hesabu mitambo ulifanywa kwa kalamu na karatasi. 554 00:28:36,820 --> 00:28:39,930 >> Nini sisi hapa ni kweli tu chunk yake. 555 00:28:39,930 --> 00:28:43,820 Ilikuwa ni 51 miguu kwa muda mrefu na wakati yote ilikuwa katika kipande kimoja. 556 00:28:43,820 --> 00:28:49,730 Inaweza kufanya nyongeza tatu kwa ya pili, kuzidisha ilichukua sekunde sita, 557 00:28:49,730 --> 00:28:53,110 na mgawanyiko ilichukua sekunde 15. 558 00:28:53,110 --> 00:28:57,870 Hivyo hii ilikuwa mapema kubwa zaidi ya kufanya mambo kwa kalamu na karatasi, 559 00:28:57,870 --> 00:29:02,870 lakini ilikuwa ni kazi polepole, na utunzaji mashine kwenda wakati wote 560 00:29:02,870 --> 00:29:08,670 mara feat kubwa ya electromechanical uhandisi utaalamu. 561 00:29:08,670 --> 00:29:12,100 >> Ni ilitumika kwa ajili ya ballistics mahesabu, kwa ajili ya kuhesabu 562 00:29:12,100 --> 00:29:15,120 trajectory ya makombora. 563 00:29:15,120 --> 00:29:19,050 Na ilikuwa pia kutumika kwa ajili ya kidogo ya hesabu katika Manhattan 564 00:29:19,050 --> 00:29:25,470 Mradi wa kuamua haki ya vigezo kwa ajili ya bomu la atomiki. 565 00:29:25,470 --> 00:29:29,230 >> Basi nini unaweza kuona hapa ni karatasi anatoa mkanda, 566 00:29:29,230 --> 00:29:33,550 hivyo mpango alipigwa makonde katika karatasi mkanda na alikuwa kwenye kitanzi. 567 00:29:33,550 --> 00:29:36,820 Nini kuona kuna madaftari kwamba ingekuwa 568 00:29:36,820 --> 00:29:42,060 yanahusiana na kumbukumbu kuhifadhiwa ya mashine, ambayo ilikuwa tu kutumika kwa ajili ya data. 569 00:29:42,060 --> 00:29:44,480 programu yenyewe ilikuwa ya kudumu. 570 00:29:44,480 --> 00:29:47,460 Haya typewriters umeme zilitumika magazeti pato. 571 00:29:47,460 --> 00:29:51,220 Dials haya, ambayo wana nafasi 10, ni 572 00:29:51,220 --> 00:29:53,120 ambapo ingekuwa kuingiza constants. 573 00:29:53,120 --> 00:29:57,990 Hivyo mpango mara fasta juu ya karatasi mkanda, na kama alikuwa mara kwa mara, 574 00:29:57,990 --> 00:30:03,360 kama una C + code - kuweka baadhi variable sawa na 47 mwanzoni 575 00:30:03,360 --> 00:30:05,950 ya mpango wako - hii ni sawa hapa. 576 00:30:05,950 --> 00:30:10,910 Ungependa piga idadi 47 kwa kutumia madaftari hayo. 577 00:30:10,910 --> 00:30:14,460 >> sawa computational hii ni kidogo sana 578 00:30:14,460 --> 00:30:22,055 kuliko ndogo wrist watch kompyuta sasa ni kuwa zinazozalishwa. 579 00:30:22,055 --> 00:30:23,680 DAVID J. Malan: Hiyo ni kwa CS50Live. 580 00:30:23,680 --> 00:30:25,471 Shukrani kwa kiasi hii wachangiaji wiki, 581 00:30:25,471 --> 00:30:27,550 ikiwa ni pamoja na ya wiki hii timu ya nyuma kamera. 582 00:30:27,550 --> 00:30:30,050 Hebu karibu show na kuangalia katika mradi mwanzo 583 00:30:30,050 --> 00:30:32,040 kutoka Lisa Chung katika Boston, 584 00:30:32,040 --> 00:31:41,227 >> [Muziki-YLVIS, "FOX"]