Ngawo-1960 kanye nawo-1970 u-Dennis Ritchie kanye no-Ken Thompson basungula i-Unix, ngokungangabazeki isistimu yokusebenza yamakhompyutha ebaluleke kakhulu emhlabeni.
Ubani oqale isikhathi se-Unix?
Kunalokho, idethi yahlelwa ohlelweni esikhathini esithile ekuqaleni kwawo-'70s kuphela ngoba kwakulula ukwenza kanjalo, ngokusho Dennis Ritchie, omunye wonjiniyela abasebenze kwa-Unix eBell Labs ekuqaleni kwayo.
Kungani usuku lwango-1970?
kungani njalo 1st jan 1970 , Ngoba - '1st January 1970' ngokuvamile ebizwa ngokuthi "i-epoch date" idethi lapho isikhathi siqale khona kumakhompyutha e-Unix, futhi leso sitembu sesikhathi simakwe ngokuthi '0'. Noma yisiphi isikhathi kusukela kuleyo dethi sibalwa ngokusekelwe enanini lamasekhondi adlulile.
Ingabe isikhathi se-Unix sisemhlabeni wonke?
Cha. Ngokwencazelo, imele izoni yesikhathi ye-UTC. Ngakho-ke isikhashana esikhathini se-Unix sisho umzuzu ofanayo ngasikhathi sinye e-Auckland, Paris, naseMontréal. I-UT ku-UTC isho ukuthi "Isikhathi Sendawo Yonke”.
Ingabe isikhathi se-Unix siyefana yonke indawo?
Isitembu sesikhathi se-UNIX yinombolo yamasekhondi (noma ama-millisecond) adlulile kusukela kuphoyinti eliphelele lesikhathi, phakathi kwamabili ka-Jan 1 1970 ngesikhathi se-UTC. (I-UTC iyi-Greenwich Mean Time ngaphandle kwezinguquko zesikhathi Sokonga Usuku.) Kungakhathaliseki indawo yakho yesikhathi, isitembu sesikhathi se-UNIX simele isikhathi esifanayo yonke indawo.
Zinde kangakanani izitembu zesikhathi ze-Unix?
Isitembu sesikhathi sanamuhla sidinga Izinombolo ze-10. Njengoba ngibhala lokhu, isitembu sesikhathi samanje se-UNIX singaba into esondele ku-1292051460, okuyinombolo enezinombolo eziyi-10. Ukuthatha ubude bobude bezinhlamvu eziyi-10 kukunikeza ububanzi bezitembu zesikhathi kusuka ku -99999999 kuya ku-9999999999 .
Ingabe i-Linux i-Posix?
Okwamanje, I-Linux ayifuneki i-POSIX-eqinisekisiwe ezindlekweni eziphezulu, ngaphandle kokusatshalaliswa kweLinux okubili kwe-Inspur K-UX [12] kanye neHuawei EulerOS [6]. Esikhundleni salokho, i-Linux ibonakala njengethobela kakhulu i-POSIX.
Ngisithola kanjani isitembu sesikhathi samanje se-Unix?
Ukuze uthole ukusetshenziswa kwesitembu sesikhathi samanje se-unix inketho %s kumyalo wedethi. Inketho ethi %s ibala isitembu sesikhathi esingu-unix ngokuthola inombolo yamasekhondi phakathi kwedethi yamanje kanye ne-unix epoch.
I-Unix isibala kanjani isikhathi?
Inombolo yesikhathi ye-Unix ithi zero ngesikhathi se-Unix, futhi inyuka ngama-86400 ncamashi ngosuku kusukela kule nkathi. Ngakho-ke 2004-09-16T00:00:00Z, izinsuku ezingu-12677 ngemva kwenkathi, imelelwa inombolo yesikhathi se-Unix 12677 × 86400 = 1095292800.
Kwenzekani uma usetha i-iPhone yakho kuJanuwari 1 1970?
Ukusetha idethi ibe ngomhlaka-1 Januwari 1970 kuzokuvimba i-iPhone, i-iPad noma i-iPod touch yakho. Ukusetha mathupha idethi ye-iPhone noma i-iPad yakho ibe ngumhla woku-1 kuJanuwari 1970, noma ukukhohlisa abangani bakho ukuthi bakwenze, kuzoyibangela ukuthi ibhajwe unomphela ngenkathi izama ukuqalisa isipele uma ivaliwe.
Ngiyiguqula kanjani i-epoch ibe yimanje?
Guqula kusuka enkathini yesikhathi uye kudethi efundeka umuntu
Usuku lwentambo = new java.text.SimpleDateFormat(“MM/dd/yyyy HH:mm:ss”).ifomethi(i-java.util.Idethi entsha (i-epoch*1000)); I-Epoch ngamasekhondi, susa u-'*1000' kuma-millisecond. myString := DateTimeToStr(UnixToDateTime(Epoch)); Lapho i-Epoch iyinombolo ephelele esayiniwe. Faka esikhundleni 1526357743 nge-epoch.