Tsev > Exhibition > Ntsiab lus

Tus Kws Keeb Kwm Lawm

Mar 14, 2019

Yuav ua kom zoo tshaj plaws ntawm kev siv computer lub sijhawm ua haujlwm, kev tawm tswv yim / tawm tswv yim tau muab tso rau cais lub tshuab hu ua Channel I / O. Lub mainframe tsis xav kom txhua tus I / O ua txhua, tsis yog yuav cia li teem rau kev tawm tswv yim los yog tso zis thiab ces cov teeb liab lub tshuab ua haujlwm kom paub txog tag nrho ntawm lub lag luam. Los ntawm dedicating yooj yooj yim sub-processors lis cov sij hawm siv I / O formatting thiab ua, zuag qhia tag nrho kev ua tau zoo tuaj.


Cov xibfwb qhia rau cov floating-point arithmetic thawj zaug nyob hauv cov computers hauv xyoo 1970 thiab tau tshwm sim thoob plaws rau xyoo 1980s thiab pib rau xyoo 1990s. Thaum ntxov 8-ntsis thiab 16-bit processors siv software los nqa tawm ntab ua haujlwm teeb meem. Qhov twg ib tus xibfwb tau txais kev pabcuam, cov lus sib dhos-sib-zog yuav raug coj tawm ntau zaus sai dua. Kev ua lej coprocessors tau nrov cov khoom siv rau cov neeg siv computer-aided tsim (CAD) software thiab kev laij lej scientific thiab engineering. Qee ntiv ntab, xws li AMD 9511, Intel I8231 thiab Weitek FPUs raug kho raws li cov twj peripheral, thaum lwm tus xws li Intel 8087, Motorola 68881 thiab National 32081 tau zoo dua nrog rau CPU.


Lwm daim ntawv ntawm tus xibfwb yog ib qho video video coprocessor, raws li tau siv nyob rau hauv Atari 8-ntsis tsev neeg, Texas Instruments TI-99 / 4A thiab MSX lub tsev-computers, uas tau hu ua "Video Display Controllers". Lub Commodore Amiga kev cai chipset muaj xws li ib chav tsev hu ua tus tooj liab, zoo li ib lub tshuab Blitter rau txoj kev ua haujlwm ntawm kev ua haujlwm nco.


Raws li microprocessors tau tsim, tus nqi ntawm kev sib dhos ntawm cov ntsiab lus floating rau lub processor tsis yws. High processor speeds kuj ua ib qho kev sib txuas lus nrog cov tub luam uas nyuaj rau kev ua haujlwm. Lwm cov ntim tom qab cov xaam phis ntawv coprocessors tam sim no tsis yooj yim hauv desktop computers. Qhov kev thov rau ib tug duab zoo nkauj coprocessor tau loj hlob, txawm li cas los, tshwj xeeb yog vim muaj qhov xav thov kom muaj tseeb 3D graphics hauv computer games.