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>> DAVID J. Malan: Hello, dinja.

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Jisimni David Malan,
u dan huwa CS50 ħajjin.

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00:00:16,670 --> 00:00:20,060
Odds huma, jekk int irfinar fil dan
fluss, int student fl CS50x u

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CS50 forsi permezz EDX, Harvard
Kulleġġ jew Harvard Estensjoni Iskola.

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Ukoll, minħabba daqstant mill-kors tal-
materjal dawn il-jiem huwa pprovdut lilek

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00:00:27,340 --> 00:00:30,500
fuq video, ħsibna aħna'd jagħmlu l-istess,
iżda din id-darba jagħmilha ftit

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00:00:30,500 --> 00:00:33,110
interessanti u attwalment mxandra
kollha ta 'dan ħajjin.

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00:00:33,110 --> 00:00:36,130
Mela jekk inti tara lili vjaġġ, jekk tara lili
misspeak, jekk inti tara lili screw up, kollha

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ta 'dak li qed jiġri litteralment dritt
issa fl-Cambridge, Massachusetts fuq

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Ġimgħa filgħodu hawn.

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>> Well, ħsibna aħna se jagħtu l-ewwel
inti sens - ara, hemm hu.

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Dan huwa CS50 ħajjin, diġà.

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Hekk matul l-aħħar ftit ġimgħat, nies
ġew kollokament mistoqsijiet li

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Reddit u Facebook u
Twitter u simili.

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U wieħed minnhom b'mod partikolari maqbuda
għajnejn tagħna li ħsibna jista 'jkun

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mistoqsijiet frekwenti.

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So I ħsibt I d taqra
lilek hawn tgħix.

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>> Għalhekk fl f'Ġimgħa 0.

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Ħaddieħor tħossok ftit konfuż
u / jew li diġà megħlub?

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Ukoll, dan tpoġġa fuq Reddit.

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U l-istudent elaborat
kif ġej -

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I m'għandhomx wisq esperjenza preċedenti.

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Jista 'li jkun għaliex I tidher li tkun qed
fuq ħafna aktar bil-mod milli l-

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bqija tal-poplu kollokament hawn?

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Ninsab verament interessati kollha ta 'dan,
iżda scratch huwa ftit konfuża li

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me għal xi raġuni.

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I ma jidhirx li tkun taf fejn tibda.

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X'għandi nagħmel biex jippruvaw u jaħtfu
kollha ta 'dan daqsxejn aħjar?

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Jien diżappuntat li jien diġà
jkollna konfuż.

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>> Allura dan huwa assolutament, tabilħaqq,
kwistjoni spiss mitluba.

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Fil-fatt, jekk inti tjunjat fl għal Week 0 tal
lecture diġà, inti ser tkun taf li fil-

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inqas hawn fuq il-kampus, 73% tal tiegħek
klassi hawnhekk m'għandhom l-ebda minn qabel

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esperjenza programing.

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U tirrealizza wisq, li ħafna ta 'l-
chatter fuq Facebook u Twitter u

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Reddit hija issa forsi preġudikata lejn
dawk l-istudenti li diġà do jkollhom

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daqsxejn aktar kumdità u sofistikati.

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U li, wara kollox, għaliex dawn qed
gravitating lejn

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dawk il-forom hekk malajr.

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>> Allura ċertament, ma jkun megħlub mill
tant tal-proġetti aqwa li

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diġà qed jiġu kondiviżi fil-Scratch
Gallerija, kif ukoll fuq Reddit

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u Facebook.

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Imma verament jieħdu l-kumdità fil-fatt
li hemm mijiet, Nay,

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litteralment eluf ta 'oħrajn
nies biss bħalek.

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U dawn jistgħu ma jkunux jitkellmu up,
iżda huma tassew hemmhekk.

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>> Allura x'inhi l CS50 ħajjin intenzjonati li jkunu?

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Din se tkun opportunità għall-
us, kull darba fil-waqt, biex ngħidu

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quddiem u lura jgħixu.

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U aħna ser jew jieħdu mistoqsijiet via
video, jew nagħmlu l-almu tagħna biex jippermettu li inti, fil-

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il-futur, anke biex tixgħel yourself
jgħixu permezz video streaming live.

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>> Iżda għal issa, aħna ħadthom ltqajna numru ta 'gost
segmenti ppreparati għalik, l-ewwel

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li se tkun idea
fil-Harvard University.

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Għal dawk minnkom li qatt ma intensifikati
sieq hawn fil Cambridge,

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Massachusetts, ħsibna aħna'd nuruk
xi wħud mill-aktar siti magħrufa sew,

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kif ukoll xi wħud mill-
siti unika biex CS50.

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Ejja tagħti ħarsa.

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>> Aħna qiegħdin hawnhekk barra mill-gradi prinċipali ta '
Harvard University, u permezz ta 'dawn

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xtiebi tista 'tara l-John Harvard
istatwa, li hija l-ewwel l-aktar folks "

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destinazzjoni.

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Ejja ħa mmorru pulzieri

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Allura dan huwa l-istatwa John Harvard, wieħed
mill-iktar postijiet popolari fuq

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kampus għat-turisti.

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Dak li int ser tara hawnhekk huwa emblazoned
ma 'John Harvard, Fundatur, 1638.

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>> Well, jirriżulta, jekk tieħu l-tour,
waħda mill-affarijiet li inti ser jitgħallmu huwa li

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hemm tliet tinsab hawn.

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Wieħed, dan mhuwiex John Harvard.

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Żewġ, huwa ma kien il-fundatur, u tlieta,
Harvard ma twaqqfet fl-1638.

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Imma dak li hu veru huwa li jekk inti togħrok tiegħu
sieq up hawn, inti tista 'biss tikseb

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ftit ta 'xortih.

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>> Nistgħu tagħti ħarsa lejn studio CS50 ta?

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Allura aħna qed hawn fil Maxwell
Dworkin G-123.

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Maxwell Dworkin tal-kompjuter tagħna
bini xjenza.

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Jekk inti tixtieq li tħares dan up fuq Google
Mapep, aħna qed fil-33 Oxford Street

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fil Cambridge, Massachusetts.

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Allura hawn, f'dan l-isfond, huwa
fejn aħna rimja shorts CS50, l

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walk-throughs, u materjal ieħor.

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>> Dak li inti ser tipikament tara hija li aħna ser
jaqgħu fil hawn, idur fuq lott ta '

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dawn id-dwal, u s-suġġetti, Zamyla,
Rob, u oħrajn, se jkollhom

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minnhom jinsabu up hawn, kontra
F'dan l-isfond abjad.

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Jew alternattivament, jekk aħna qatra dan
iskrin aħdar, nistgħu attwalment

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diġitalment jitqiegħdu warajhom
xejn irridu - a

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iskrin tal-kompjuter, screen TV -

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verament, xi ħaġa bħal dik.

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>> Well, madwar hawn, aħna għandna xi wħud mill-
dawl li aħna tarmi fuq il-

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suġġett sabiex inti tikseb sbieħ, nadif
sparatura kontrihom u l-isfond.

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Hawnhekk għandna xi fdalijiet ta 'dak li
darba kien il-sala CS50.

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Allura dan użat li jkun hemm post
fejn kompjuter xjenza

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ggradwawx hang out.

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Imxejna peress huwa mdawwar ħaġa
aktar teknoloġija għolja għal dawn rimjiet.

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>> Fil-fatt, hawnhekk fdal
tal-ġurnata puzzle CS50.

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Fil-bidu tas-semestru, għandna
xi studenti 200-plus jiltaqgħu flimkien

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u ssolvi puzzles, li hija maħsuba biex
jkun dimostrattiv tal-fatt li

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xjenza tal-kompjuter huwa verament mhux
dwar l-ipprogrammar, per se.

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Huwa aktar ġenerali dwar
soluzzjoni ta 'problemi.

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>> Imma hawn inti tara mill-imgħoddi, xi
tal-marki li konna xellug

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dejjem up fuq dawn il-ħitan tal-ħġieġ.

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Issa jekk aħna pern madwar, tkun taf tara
liema affarijiet huma simili mill-

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perspettiva tal-produttur.

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Minn hawn, aħna għandna tripod.

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U fuq din tripod huwa verament ftit
iskrin tal-kompjuter li qed tirrifletti

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kontra mera.

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Allura jekk aħna verament mdawwar fuq il-camera,
mdawwar fuq il-kompjuter, inti

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se attwalment ara l-kliem dwar dan
iskrin li I jew wieħed tat-tim

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membri huma attwalment
reciting fuq camera.

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>> Dak li nagħmlu f'dan studio huwa verament il-
biss kitbu kontenut għal CS50.

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U aħna iskrittura ma teleprompter,
sabiex inkunu nistgħu jiksbu l-tieħu biss

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dritt, u b'tali mod li meta nagħmlu
żbalji, huwa ħafna aktar faċli li jerġa 'jagħmel,

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jerġa 'jagħmel, jerġa' jagħmel, u deterministically, jgħidu
l-istess ħaġa għal darb'oħra u għal darb'oħra.

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Sanders Teatru, sadanittant,
huwa ferm off l-cuff.

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U huwa ambjent ferm aktar organiku
fejn għandna lili u

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studenti u oħrajn li jinteraġixxu
fuq il-palk.

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Allura għaliex ma nieħdu
ħarsa hemmhekk li jmiss.

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>> Allura aħna qed ġejjin up here fuq Memorial
Hall, li huwa fejn l-uffiċċju CS50 tal

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sigħat u lectures huma miżmuma.

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Hawn f'dan entratura
huwa Annenberg Hall.

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Dan huwa attwalment fejn kollha ta 'l-Harvard
freshmen jieħdu ikliet tagħhom.

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U huwa wkoll fejn filgħaxija,
lejl wieħed jew aktar fil-ġimgħa, li aħna

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jkollhom mijiet ta 'studenti CS50 jiġbru
kultant biex jaħdmu dwar il-problema tagħhom

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settijiet ħdejn xulxin,
kif ukoll persunal CS50.

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>> Allura aħna qed hawn dwar il-passi
ta Memorial Hall.

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Dawn huma l-bibien ewlenin li ser
iwassalna għal Sanders Teatru, fejn

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lectures huma miżmuma.

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Għandhom aħna?

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>> U dan huwa Sanders Teatru, fejn
CS50 s lectures huma miżmuma.

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Dan huwa CS50.

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Allura hemm din l-espressjoni
jmorru madwar l-internet

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magħrufa bħala, Kieku One Job.

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U jien tassew Kieku One Job madwar żewġ
minuti u nofs ilu, li tiegħi

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kollegi hawn, Ramon, Colton, Dan, u
Padrick, malajr ħafna mfakkra me

136
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tal, hekk kif aħna marru għal dak tour.

137
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>> Minħabba fil-fatt, dak li konna suppost
li tibda bil hawn illum kienu ftit

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hellos minn uħud mill-predeċessuri tiegħek
fil-klassi.

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Allura aħna qed attwalment għaddejjin biex Rewind
Ftit ftit, u żid sal William issa,

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li hails minn Wales fir-Renju
Unit, li kien wieħed mill-iżgħar tagħna

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studenti aħħar sena, li kieku
nixtieq ngħid bonjour.

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>> SPEAKER 1: X'hemm isem tiegħek?

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>> SPEAKER 2: William.

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>> SPEAKER 1: X'hemm dan?

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>> SPEAKER 2: CS50.

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>> DAVID J. Malan: Allura li
imbagħad kien William.

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Ejja issa ras x'imkien ieħor, sa
Niġerja, fejn classmate ieħor ta '

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tiegħek minn snin imgħoddija
huwa [? Annette,?]

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li jkunu simili jixtiequ
jiġifieri, Hello, dinja.

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>> SPEAKER 3: Hello, dinja.

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Ninsab verament eċċitati li tkun qed tieħu
CS50 din is-sena, il-

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mod minn Lagos, Niġerja.

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00:06:56,160 --> 00:06:59,570
I ħass il-ħtieġa li Hone kompjuter tiegħi
ħiliet, u stajt dejjem ried li

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issir programmer tajba, u għalhekk
I ffirmaw għall-kors.

155
00:07:02,830 --> 00:07:06,860
Irrid ngħid grazzi għall Harvard u MIT
u l-iskejjel li daħal flimkien biex

156
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biex dan iseħħ għal eluf
tan-nies madwar id-dinja.

157
00:07:10,200 --> 00:07:12,740
>> I biss biss lest
ewwel logħba tiegħi qatt.

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00:07:12,740 --> 00:07:17,690
Ltqajna jsir bil-P stabbiliti 0, Scratch tiegħi
programm, li huwa lottijiet ta 'gost.

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Ninsab ħerqan li jkollhom aktar gost mal-
il-kors, u mal-klassi tiegħi bħala

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aħna jgħaddu sett p wara sett p.

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00:07:24,230 --> 00:07:24,840
Jisimni [? Annette?]

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[? Onoja?], U dan huwa CS50.

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>> DAVID J. Malan: Issa, partikolarment jekk
int inkwetat li int l-aktar membru anzjan

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student fil-klassi, mistrieħ
assigurat li int ma.

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CS50 u CS50x pjuttost l-iskala ta '
età minn żgħar ta '10 sena biex

166
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ħafna, ħafna ixjeħ minn dik.

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Fil-fatt, numru ta 'studenti tiegħek li
ġew kollokament fuq il-bulletin

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bordijiet ġew qsim
videos f'dan is-sens.

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U aħna tixtieq li jaqsmu wieħed
partikolari mill-aħħar sena -

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[? Alecio?]

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mill-Brażil, li kieku wkoll
nixtieq ngħid bonjour għal tiegħu

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suċċessuri fil-klassi.

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>> SPEAKER 4: Hello, dinja.

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Jien [? Alecio?]

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[? Omida?]

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00:07:58,390 --> 00:08:00,430
minn Brasilia, il-Brażil.

177
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Jien 78 sena, u jien ħafna
entużjasti dwar dan il-kors online.

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Ninsab ċert li se tgħin me lottijiet li
iwettqu xogħol tiegħi fil-qasam tal-

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tagħlim mill-bogħod.

180
00:08:14,180 --> 00:08:19,350
Nieħu din l-opportunità biex nirringrazzja EDX
għall-inizjattiva ta 'korsijiet simili

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00:08:19,350 --> 00:08:25,870
dan, u nirringrazzja wkoll lill-Professur
Malan u l-gang CS50.

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Jisimni [? Alecio?]

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[? Omida?], U dan huwa CS50.

184
00:08:29,795 --> 00:08:32,408

185
00:08:32,408 --> 00:08:35,159
>> DAVID J. Malan: Allura issa aħna se jkunu
qtugħ għal tour ta 'Harvard

186
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Università, għal dawk minnkom li
ma bbenefikawx Harvard qabel.

187
00:08:37,559 --> 00:08:40,789
Imma xi ħaġa jgħidlekx me li għandek issa
raw Harvard University qabel.

188
00:08:40,789 --> 00:08:43,720
Allura aħna qed tmur biex nimxu 'l quddiem biex
segment magħrufa bħala inbox tagħna.

189
00:08:43,720 --> 00:08:46,410
Matul l-aħħar ftit ġimgħat, inti ħadthom tabilħaqq
ġew sottomissjoni pjuttost ftit mistoqsijiet,

190
00:08:46,410 --> 00:08:47,910
li aħna kont qed
waqt li żżomm għajnejk out.

191
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>> U xi wħud minnkom kienu xorta biżżejjed biex jistaqsu
dawk l-istess mistoqsijiet permezz video.

192
00:08:51,470 --> 00:08:54,850
Fil-fatt, hawn fil-Kuwajt, għandna
Dhruv, li jixtiequ li joħolqu

193
00:08:54,850 --> 00:08:59,490
kwistjoni lilna, il-persunal, dwar CS50
u dwar ix-xjenza tal-kompjuter u

194
00:08:59,490 --> 00:09:00,670
programmazzjoni aktar ġenerali.

195
00:09:00,670 --> 00:09:01,730
Dhruv?

196
00:09:01,730 --> 00:09:02,390
>> Dhruv RAMANI: Hi.

197
00:09:02,390 --> 00:09:04,853
Jien Dhruv, u I jgħixu fil-
Kuwajt, il-Lvant Nofsani.

198
00:09:04,853 --> 00:09:06,302
Jien student [? fil-klassi 10,?]

199
00:09:06,302 --> 00:09:07,560
u jien ghamilt erba 'lingwi minn issa.

200
00:09:07,560 --> 00:09:12,060
Jiena ħadt CS50 fl-2013, u l-ewwel
kwistjoni li daħal f'moħħ tiegħi huwa

201
00:09:12,060 --> 00:09:14,488
li huwa l-aħjar lingwa li
jitgħallmu fid-dinja tal-lum?

202
00:09:14,488 --> 00:09:17,866

203
00:09:17,866 --> 00:09:19,880
>> DAVID J. Malan: Allura dak
kwistjoni kbira.

204
00:09:19,880 --> 00:09:21,940
U hemm attwalment mhix
tweġiba waħda għaliha.

205
00:09:21,940 --> 00:09:24,990
Hemm verament mhux l-aħjar lingwa,
iżda hemm l-aħjar lingwa

206
00:09:24,990 --> 00:09:26,220
kultant għall-impjieg.

207
00:09:26,220 --> 00:09:28,120
Iżda anke dakinhar, inti spiss
għandhom id-diskrezzjoni.

208
00:09:28,120 --> 00:09:31,180
Per eżempju, isaffru hawnhekk hija pjuttost
ftit mill-lingwi l-aktar popolari

209
00:09:31,180 --> 00:09:35,200
llum, u C hija biss waħda minnhom fost
minnhom, kif huwa PHP u oħrajn li aħna ser

210
00:09:35,200 --> 00:09:38,140
tesplora aktar tard fil-semestru,
fil CS50 innifsu.

211
00:09:38,140 --> 00:09:41,720
>> Issa, ħafna fil Vogue dawn il-jiem huma
lingwi bħal Python u Ruby u

212
00:09:41,720 --> 00:09:46,000
Perl, u anki Java sa ċertu punt għall-
programmazzjoni fuq l-internet, filwaqt Java fl

213
00:09:46,000 --> 00:09:48,380
partikolari huwa użat pjuttost ftit
għal softwer intrapriża,

214
00:09:48,380 --> 00:09:49,880
magħmula minn kumpaniji kbar.

215
00:09:49,880 --> 00:09:52,545
C huwa pjuttost komuni fl-livell baxx
sistemi integrati.

216
00:09:52,545 --> 00:09:56,120
Iżda aħna attwalment għandhom tendenza li jużaw C minħabba
din hija lingwa pjuttost żgħar, fuq nett

217
00:09:56,120 --> 00:09:58,550
li ħafna suċċessuri tagħha
ġew mibnija.

218
00:09:58,550 --> 00:10:01,890
>> Mela jekk int mintix liema lingwa
għandek tuża għal kompitu partikolari,

219
00:10:01,890 --> 00:10:03,080
ukoll, huwa verament jiddependi.

220
00:10:03,080 --> 00:10:06,900
U spiss, ta 'l-programmer stess
preferenzi personali iżen pulzieri

221
00:10:06,900 --> 00:10:09,590
Dritt issa, per eżempju, jien ser
minn fażi fejn I really simili

222
00:10:09,590 --> 00:10:10,270
JavaScript.

223
00:10:10,270 --> 00:10:12,970
Mhux tant fil-browser, iżda
attwalment fuq in-naħa server.

224
00:10:12,970 --> 00:10:16,960
Inti tista 'attwalment jużawha b'qafas
imsejħa Node.js għall-programm

225
00:10:16,960 --> 00:10:18,580
kmand tal-linja fil-server.

226
00:10:18,580 --> 00:10:22,035
>> Issa fid-dinja reali, simili ħafna inti
tista ', per eżempju, tipprova tikseb

227
00:10:22,035 --> 00:10:24,880
kamin bħal dan fil-ħajt li jużaw aktar
kwalunkwe għodda - per eżempju, anke l-

228
00:10:24,880 --> 00:10:26,550
aktar iebsa żżejjed ta 'mrietel.

229
00:10:26,550 --> 00:10:30,080
Dan tabilħaqq taħdem jekk inti hit l-
Heck out tal-ħaġa fil-ħajt.

230
00:10:30,080 --> 00:10:31,880
Iżda int tista 'tkun ftit
aktar sofistikati.

231
00:10:31,880 --> 00:10:34,720
U inti tista 'tilħaq għal minflok,
xi ħaġa bħal tornavit sandperches.

232
00:10:34,720 --> 00:10:38,300
Għaliex jekk ikollok hija biss id-dritt, li
tintegra ruħhek fl-crosshairs ta 'dak

233
00:10:38,300 --> 00:10:40,630
kamin, u inti probabilment setgħu
ġġibu fis-ħajt.

234
00:10:40,630 --> 00:10:43,880
>> Iżda l-aħjar għodda għall-impjieg, jew id-
aktar wieħed xieraq għal dan

235
00:10:43,880 --> 00:10:47,820
applikazzjoni partikolari, biex ngħidu hekk,
ikun tornavit ras Phillips,

236
00:10:47,820 --> 00:10:52,140
fejn il-kap ta 'l-aċċessjonijiet tornavit
perfettament fil-kap tal-vit.

237
00:10:52,140 --> 00:10:54,190
Allura meta jagħżlu programmazzjoni
lingwa, huwa simili

238
00:10:54,190 --> 00:10:54,880
fl-ispirtu għal dan.

239
00:10:54,880 --> 00:10:58,380
U inti tista 'tuża lingwi differenti
biex isolvu l-istess kompitu, iżda xi wħud

240
00:10:58,380 --> 00:11:00,390
minnhom jistgħu jipproduċu aktar
soluzzjoni eleganti.

241
00:11:00,390 --> 00:11:02,380
>> Xi wħud minnhom jistgħu jipproduċu
soluzzjoni aktar malajr.

242
00:11:02,380 --> 00:11:05,500
U forsi, xi wħud minnhom jistgħu
tabilħaqq rendiment soluzzjoni aħjar.

243
00:11:05,500 --> 00:11:08,830
Allura wieħed mill-takeaways, wieħed jittama,
inti ser toħroġ ta 'CS50 huwa meta tuża

244
00:11:08,830 --> 00:11:11,370
b'mod partikolari għodod għal xogħol partikolari.

245
00:11:11,370 --> 00:11:14,130
>> Well, li jmiss up, ejja tagħti ħarsa lejn
kwistjoni oħra li ġiet sottomessa mill-

246
00:11:14,130 --> 00:11:17,610
wieħed mill-klassi tiegħek, dan iż-żmien
minn Bernardo mill-Brażil.

247
00:11:17,610 --> 00:11:23,844

248
00:11:23,844 --> 00:11:24,980
>> BERNARDO: Hey.

249
00:11:24,980 --> 00:11:26,090
Jisimni Bernardo.

250
00:11:26,090 --> 00:11:27,170
I am mill-Brażil.

251
00:11:27,170 --> 00:11:29,076
U nixtieq li jistaqsu żewġ affarijiet.

252
00:11:29,076 --> 00:11:34,130
L-ewwel minnhom, kif fast huwa l-internet
veloċità fil-Harvard, u t-tieni,

253
00:11:34,130 --> 00:11:35,915
li kellu l-idea li tagħmel
l-appliance?

254
00:11:35,915 --> 00:11:39,424

255
00:11:39,424 --> 00:11:41,150
>> DAVID J. Malan: Allura li wisq
kienet kwistjoni kbira.

256
00:11:41,150 --> 00:11:43,130
U aħna fil-fatt ma kinitx taf
-risposta għal din.

257
00:11:43,130 --> 00:11:46,220
Allura aħħar lejl, I bagħtet off email
xi ħbieb netwerking Harvard

258
00:11:46,220 --> 00:11:48,770
grupp, u ħoloq preċiżament
Kwistjoni Bernardo tal.

259
00:11:48,770 --> 00:11:50,770
Ukoll, jirriżulta - drum roll -

260
00:11:50,770 --> 00:11:55,370
li l-internet konnettività Harvard biex
l-dinja ta 'barra huwa ta '10 gigabits.

261
00:11:55,370 --> 00:12:00,360
Li jpoġġu dan fil-perspettiva, li l-
10000000000 bits kull sekonda.

262
00:12:00,360 --> 00:12:03,290
>> Issa biex iqiegħed dak fis-perspettiva, jekk
ġejt biex tniżżel movie minn

263
00:12:03,290 --> 00:12:06,060
xi ħaġa bħal iTunes jew x'imkien ieħor
online dawn il-jiem, huma jistgħu fil-fatt

264
00:12:06,060 --> 00:12:07,970
ikunu verament kbir jekk huwa ta 'video HD.

265
00:12:07,970 --> 00:12:10,390
Li jista 'jkun hemm żewġ gigabytes b'kollox.

266
00:12:10,390 --> 00:12:14,690
Ukoll, jekk bandwidth tiegħek huwa ta '10 gigabits
kull sekonda, inti tista 'tniżżel movie

267
00:12:14,690 --> 00:12:19,060
bħal dik f'sekondi sempliċi, minflok
il-minuti jew sigħat li jieħu aktar ta '

268
00:12:19,060 --> 00:12:20,070
us fid-dar.

269
00:12:20,070 --> 00:12:23,470
>> Issa fl-ekwità, mhux kull wieħed u waħda
minna hawn fuq il-kampus għandha aċċess għal

270
00:12:23,470 --> 00:12:25,880
10 biljun bits ta 'bandwidth
kull sekonda.

271
00:12:25,880 --> 00:12:28,570
Fir-realtà, huwa komuni fl-
pjuttost ftit nies.

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00:12:28,570 --> 00:12:32,270
Imma fil-fatt, għaliex ma we tagħti ħarsa lejn
veloċità tat-test, fejn aħna ser twettaq

273
00:12:32,270 --> 00:12:35,530
test li t-testijiet kemm fast xi
bits jistgħu jivvjaġġaw għal partikolari tiegħi

274
00:12:35,530 --> 00:12:37,810
laptop għal xi post ieħor fil-qrib.

275
00:12:37,810 --> 00:12:39,520
>> Dan mhuwiex neċessarjament awtorevoli

276
00:12:39,520 --> 00:12:41,190
twieġeb dwar il-bandwidth.

277
00:12:41,190 --> 00:12:44,530
Fil-fatt, jekk inti tipprova dan fid-dar, inti
tista 'ssib dak is-servizz internet tiegħek

278
00:12:44,530 --> 00:12:49,170
fornitur, jew ISP, huwa tip ta 'tqarraq
inti, fejn ħafna ISPs

279
00:12:49,170 --> 00:12:51,230
dawn il-jiem jippermettu li inti jinfaqgħu veloċitajiet.

280
00:12:51,230 --> 00:12:54,700
U mill tifqigħ, I jfisser għall-ewwel ftit
sekondi ta 'tniżżil xi ħaġa jew

281
00:12:54,700 --> 00:12:57,790
jagħmlu xejn bl-internet tiegħek
rigward, għandu mnejn attwalment tniżżel

282
00:12:57,790 --> 00:12:58,685
pjuttost malajr.

283
00:12:58,685 --> 00:13:02,170
Imma jekk inti watch a bar progress - l-
veloċità li bits tiegħek qed

284
00:13:02,170 --> 00:13:02,880
jitniżżel -

285
00:13:02,880 --> 00:13:06,630
inti ser spiss tara li huwa jonqos
isfel u 'l isfel u' l isfel.

286
00:13:06,630 --> 00:13:09,800
>> Allura dawn it-testijiet tal-veloċità, franchement, mhumiex
neċessarjament rappreżentattiv.

287
00:13:09,800 --> 00:13:13,980
Iżda għal dawnlowds qosra, inti ser tabilħaqq
nikseb dan ħafna bits stabbiliti kull sekonda.

288
00:13:13,980 --> 00:13:15,230
Dan, għandhom we run veloċità tat-test?

289
00:13:15,230 --> 00:13:31,060

290
00:13:31,060 --> 00:13:32,310
Come fuq.

291
00:13:32,310 --> 00:13:35,160

292
00:13:35,160 --> 00:13:37,320
Hemm veloċità download tagħna
u issa veloċità upload tagħna.

293
00:13:37,320 --> 00:13:39,470
Come on, come fuq.

294
00:13:39,470 --> 00:13:41,320
Come on!

295
00:13:41,320 --> 00:13:42,570
Come on!

296
00:13:42,570 --> 00:13:44,810

297
00:13:44,810 --> 00:13:46,130
Wisq, jien qed told.

298
00:13:46,130 --> 00:13:46,660
>> Kull dritt.

299
00:13:46,660 --> 00:13:50,340
Allura li kien f'dan studio hawn, Hauser
Studio, fil Widener Librerija tal-

300
00:13:50,340 --> 00:13:51,500
Università ta 'Harvard.

301
00:13:51,500 --> 00:13:53,810
Il-veloċità li laptop tiegħi ftit
huwa jkollna, permezz

302
00:13:53,810 --> 00:13:55,580
Internet barra Harvard.

303
00:13:55,580 --> 00:13:58,760
Issa fl-aħħar, għandna mistoqsija minn
terz ta 'klassi tiegħek -

304
00:13:58,760 --> 00:14:05,206
Mauricio mill-Peru, li jixtiequ
il-mistoqsija li ġejja minn hawn.

305
00:14:05,206 --> 00:14:06,480
>> Mauricio RADA: Hello.

306
00:14:06,480 --> 00:14:08,750
Isem tiegħi huwa Mauricio,
u jien mill-Peru.

307
00:14:08,750 --> 00:14:13,560
Mistoqsija tiegħi hija, I am permessi li jibdew
[Inaudible] biex jgħallmu CS50 għall tagħna

308
00:14:13,560 --> 00:14:15,890
skejjel li jużaw materjali CS50?

309
00:14:15,890 --> 00:14:17,300
[Inaudible].

310
00:14:17,300 --> 00:14:20,842
Jisimni Mauricio, u dan huwa CS50.

311
00:14:20,842 --> 00:14:22,770
>> DAVID J. Malan: [inaudible]

312
00:14:22,770 --> 00:14:25,550
Mauricio, u ħaddieħor li l-
interessati f'din il-mistoqsija partikolari

313
00:14:25,550 --> 00:14:28,380
jafu li l-tweġiba hija assolutament,
helhjärtat iva.

314
00:14:28,380 --> 00:14:31,960
Fil-fatt, student hawn fuq il-kampus
jismu Gabriel [? Grimardes?]

315
00:14:31,960 --> 00:14:35,910
li hails mill-Brażil fil-fatt ma
eżattament dan fil Hometown tiegħu ma '

316
00:14:35,910 --> 00:14:42,410
kors li hu iddabbjati CC50, disponibbli hawn fuq
CC50.com.br, dawk fostkom li jitkellmu

317
00:14:42,410 --> 00:14:43,930
Portugiż, jekk inti tixtieq
biex tagħti ħarsa.

318
00:14:43,930 --> 00:14:47,020
>> U dak Gabriel għamlet ftit ta 'snin
ilu kien litteralment jitniżżel kollha

319
00:14:47,020 --> 00:14:50,520
Għotjiet u eżamijiet CS50 u l
settijiet problema u videos.

320
00:14:50,520 --> 00:14:53,230
U hu tradott aktar ta '
Dak il-kontenut innifsu.

321
00:14:53,230 --> 00:14:56,510
U mbagħad, bl-għajnuna dad tiegħu fil-
dahar tal-klassi fil-għoli tiegħu

322
00:14:56,510 --> 00:15:01,030
iskola, hu stess beda tagħlim tiegħu
verżjoni stess ta 'CS50, l-ewwel 50

323
00:15:01,030 --> 00:15:02,440
tal-klassi tiegħu fl-iskola għolja.

324
00:15:02,440 --> 00:15:05,670
Imbagħad il-semestru sussegwenti,
xi 150 ta 'klassi tiegħu.

325
00:15:05,670 --> 00:15:08,190
>> U huwa pjuttost, pjuttost jispira
biex tara lilu.

326
00:15:08,190 --> 00:15:11,540
Mela jekk inti tmur għal dan URL wara dan
xandira, ikklikkja fuq il-video YouTube

327
00:15:11,540 --> 00:15:12,250
thats inkorporat hemmhekk.

328
00:15:12,250 --> 00:15:15,500
U tista 'tara Gabriel tagħlim pretty
ħafna l-istess materjal li aħna

329
00:15:15,500 --> 00:15:17,970
mgħallma l-istess sena
fil CS50 fuq il-kampus.

330
00:15:17,970 --> 00:15:21,240
U jien hekk kuntent li jgħidu li l-istess
Gabriel, li qabel kienet skola għolja

331
00:15:21,240 --> 00:15:24,330
student mill-Brażil, issa hija hawn fuq
Kampus Harvard bħala Harvard

332
00:15:24,330 --> 00:15:28,450
freshman, u din is-sena li ġejja se tkun
Sħabi tagħlim ras CS50, u kull

333
00:15:28,450 --> 00:15:31,120
l-aktar involuti fil CS50 goings fuq.

334
00:15:31,120 --> 00:15:34,100
>> Mela jekk inti stess tixtieq li tagħmel dan
bħal Mauricio, jekk jogħġbok biss mur

335
00:15:34,100 --> 00:15:37,930
CS50.tv, li huwa l-kors
sit OpenCourseWare stess.

336
00:15:37,930 --> 00:15:41,060
Hemm liċenzja hemmhekk li inti tista '
jinqraw, u huwa attwalment xi ħaġa

337
00:15:41,060 --> 00:15:44,140
imsejħa liċenzja Creative Commons, li
pretty ħafna tgħid li inti

338
00:15:44,140 --> 00:15:48,280
ħielsa u merħba li jużaw il-materjal, li
timmodifika l-materjal, sakemm inti

339
00:15:48,280 --> 00:15:50,990
yourself Share-Alike ma 'oħrajn.

340
00:15:50,990 --> 00:15:52,620
>> Allura dak għal inbox din il-ġimgħa.

341
00:15:52,620 --> 00:15:55,910
Għaliex ma we tieħu waqfa qasira hawn,
u jippermetti li inti ċans li jaraw 60

342
00:15:55,910 --> 00:15:57,488
sekondi ta 'qtates.

343
00:15:57,488 --> 00:16:58,865

344
00:16:58,865 --> 00:17:01,860
>> DAVID J. Malan: [inaudible]

345
00:17:01,860 --> 00:17:05,720
ħajjin, u dak li ħsibna aħna'd nagħmlu huwa
jikkonkludu llum minn film li wieħed

346
00:17:05,720 --> 00:17:08,760
Membri tal-persunal CS50 stess, T.J.
Barber, poġġiet flimkien.

347
00:17:08,760 --> 00:17:14,730
As you know probabbilment, CS50 hawn fuq
kampus qofol tagħha bi CS50 ġust, l-

348
00:17:14,730 --> 00:17:16,730
wiri epika ta 'studenti "
proġetti finali.

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Dawk minnkom tieħu CS50 permezz Harvard
Online Estensjoni School, jew

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permezz EDX online se jkollha simili
opportunità, għalkemm virtwali u

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online, li juru proġett finali tiegħek
xi numru ta 'xhur, għalhekk, sabiex

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dinja kollha biex tara.

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>> Iżda ħsibna aħna'd jagħtik sens
hawn, ma 'xi isfond gost fuq tagħna

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display screen kbir, ta 'eżattament dak
ġara biss ftit ġimgħat ilu hawn fuq

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kampus mal-fuq il-kampus
Verżjoni tal-fiera CS50 tal.

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Ejja roll.

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00:17:40,920 --> 00:17:43,234

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>> [Daqq tal-mużika]

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>> SPEAKER 5: Hi, [? Jien Allison?]
hawn fil-CS50 ġust, ma '-

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>> SPEAKER 6: [? Curt Stone. ?]

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>> [? SPEAKER 5: Curt Stone. ?]

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Kbir biex tara int.

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Allura, tista 'tgħidilna ftit
ftit dwar il-proġett tiegħek?

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>> SPEAKER 6: Oh, ukoll assolutament.

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>> SPEAKER 7: Għamilna visualizer mużika.

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00:18:29,117 --> 00:18:34,047

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>> SPEAKER 8: [inaudible].

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00:18:35,297 --> 00:18:39,963

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>> SPEAKER 9: Allura la minna kellhom
kwalunkwe esperjenza [inaudible].

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>> SPEAKER 10: Dak tal-biża.

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00:18:43,414 --> 00:18:45,170
Istess bħal 70% ta 'studenti oħra.

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>> SPEAKER 11: I kien wieħed mill-
70% ta 'nies li ma

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jafu xejn dwar -

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>> SPEAKER 5: U issa int
bħal [inaudible].

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00:18:49,364 --> 00:18:55,100

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>> SPEAKER 12: Huwa ċans aqwa
biex iġibu l-istudenti flimkien

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u tara x'jiġri.

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00:18:59,566 --> 00:19:03,050
Ħares lejn xi apps 600-fard huma
wera hawnhekk li ma kinux jeżistu

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00:19:03,050 --> 00:19:05,526
qabel livell ta 'dħul minħabba l-waħda
kors aqwa.

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00:19:05,526 --> 00:19:45,331

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>> SPEAKER 13: Huma verament ma jaqdix tiegħek
esperjenza li ġejjin fil-klassi.

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Bħali, I kellhom żero, kompjuter żero
ħiliet ta 'programmazzjoni.

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I kien jaf dak li kien Java, so
li kienet dwar dan.

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Huma verament, verament.

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00:19:58,650 --> 00:20:00,580
U speċjalment - u l-TFS, aqwa.

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00:20:00,580 --> 00:20:05,260
Il-TFS huma isbaħ, isbaħ
komponent għal dan il-kors.

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Dan kien CS50.

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00:20:06,510 --> 00:20:16,915

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>> SPEAKER 14: Mijiet ta 'proġetti
jimxu permezz ta 'dan sala.

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00:20:19,200 --> 00:20:23,710
Mijiet ta 'kaxxi ta' kandju, mijiet ta '
kaxxi ta 'popcorn, u pjuttost ftit

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attendew, u biss kollha tal-
blalen istress li ġew

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jintefa u meħuda dar.

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00:20:28,085 --> 00:20:32,233
Dan kien CS50, u dan
kien l-ors CS50.

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Tajba lejl.

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>> DAVID J. Malan: Dan, imbagħad, huwa
dak li jistenna inti hawn fil CS50.

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Li lilha għall CS50 ħajjin.

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00:20:38,790 --> 00:20:41,780
Grazzi tant għall Ramon, Padrick,
Colton, u Dan, li huma here lura

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il-wiri.

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00:20:42,440 --> 00:20:45,800
U ma żżomm għajnejk fuq Twitter,
Facebook, Reddit, u x'imkien ieħor għal

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Avviżi permezz li inti stess
jistgħu jissottomettu videos u mistoqsijiet hekk

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li tista 'tingħaqad magħna hawn fil-
studio għall-CS50 jmiss live.

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Dan kien CS50.

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