Ubuchwepheshe bekhompyutha busekelwe emqondweni womncane
Idijithi kanambambili, noma kancane, iyunithi eyisisekelo kunazo zonke yedatha ekusebenziseni i-computing. A kancane imelela eyodwa yamabhanari amabili amanani, noma "0" noma "1." Lezi zindinganiso zingaphinda zimelele amanani we-logic afana ne- "ku" noma "aphumule" futhi "aqinisile" noma "amanga." Iyunithi yesikhashana ingahle iboniswe yi-lowercase b .
Ukubanjwa kuNethiwekhi
Ekuxhumaneni , izinkinobho zifakwe ngekhompiyutha ngokusebenzisa izimbonakaliso zikagesi kanye nezinsiza zokukhanya ezidluliselwa kwinethiwekhi yekhompyutha. Amanye ama-protocols wenethiwekhi athumela futhi athola idatha ngendlela yokulandelana kancane. Lezi zibizwa ngokuthi izivumelwano ezincane. Izibonelo zamaphrothokithi axhambileyo zihlanganisa iphuzu lokukhomba-iphuzu.
Ukuvinjelwa kwenethiwekhi kuvame ukucashunwa ngamabikithi-ngamabili, isibonelo, ama- megabits angu- 100 = ama-bits ayizigidi eziyi-100 ngomzuzwana, ongaboniswa njenge-100 Mbps.
Ama-bits nama-Bytes
I- byte yenziwe ngamabikithi ayisishiyagalombili ngokulandelana. Cishe ujwayele i-byte njengokulinganisa usayizi wefayela noma inani le- RAM kukhompyutha. I-byte ingabonisa incwadi, inombolo noma uphawu, noma olunye ulwazi ikhompyutha noma uhlelo olungasebenzisa.
Ama-bytes amelelwe yi-B ephezulu .
Ukusetshenziswa kwezinkinobho
Nakuba ngezinye izikhathi kubhalwe phansi ngefomali noma ifomu ye-byte, amakheli enethiwekhi njengamakheli e- IP namakheli we- MAC ekugcineni abhekwa njengezinkinobho zokuxhumana kwenethiwekhi.
Ukujula kombala ekuboniseni ihluzo kuvame kulinganiswa ngokwemibandela. Isibonelo, izithombe ze-monochrome ziyizithombe ezilodwa, kuyilapho izithombe ezingu-8-bit zingabonisa imibala engu-256 noma ama-gradients ku-grayscale. Ihluzo zemibala yangempela zihanjiswe ku-24-bit, 32-bit, nehluzo eziphakeme.
Izinombolo ezikhethekile zedijithali ezibizwa ngokuthi "izihluthulelo" zivame ukusetshenziselwa ukubethela idatha kumanethiwekhi omshini. Ubude balezi zihluthulelo buboniswa ngokwezinombolo zezinkinobho. Okukhulu kunani lezinkinobho, okusebenzayo kangcono ukuthi ukhiye ukuvikela idatha. Kuzokuphepha kwenethiwekhi okungenantambo, isibonelo, izinkinobho ze- WEP ezingu-40-bit zibonakala zingalondekile, kodwa izinkinobho ezingu-128-bit noma ezinkulu ze- WEP ezisetshenzisiwe namuhla ziyasebenza kakhulu.