Video: Eniac nco npaum li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
ENIAC . US Army cov ENIAC qhov project yog thawj lub computer rau muaj lub cim xeeb cia muaj peev xwm nyob rau hauv txhua daim ntawv. Ua ke nyob rau lub caij nplooj zeeg xyoo 1945, ENIAC yog lub pinnacle ntawm niaj hnub technology (zoo, tsawg kawg ntawm lub sij hawm). Nws yog 30 tuj dab, nrog thiry cais units, ntxiv rau lub hwj chim mov thiab yuam cua txias.
Hauv qhov no, thawj lub khoos phis tawj Eniac loj npaum li cas thiab nws muaj lub cim xeeb npaum li cas?
ENIAC tau loj heev. Nws muaj 17,500 lub tshuab nqus tsev vacuum, txuas los ntawm 500,000 soldered kev sib txuas. Nws puv 50-foot ntev hauv qab chav tsev thiab hnyav 30 tons. Niaj hnub no, ib lub microchip, tsis loj dua tus ntiv tes, tuaj yeem ua tau ntau tshaj li 30 tons ntawm cov khoom siv.
Yuav ua li cas muaj pes tsawg tus transistors Eniac computer muaj thaum nws tsim? Thaum kawg ntawm nws txoj haujlwm xyoo 1956, ENIAC muaj 20,000 lub tshuab nqus tsev vacuum; 7, 200 siv lead ua diodes; 1,500 relays; 70, 000 resistors; 10, 000 capacitors; thiab kwv yees li 5,000,000 tes-soldered pob qij txha.
Tsuas yog li ntawd, Eniac tau siv ntau qhov chaw?
1,800 m² os
Eniac hloov lub ntiaj teb no li cas?
ENIAC : Thawj lub computer ua keeb kwm. Cov ENIAC , los yog Electronic Numerical Integrator thiab Computer, tuaj yeem churn 5, 000 ntxiv teeb meem hauv ib thib ob, nrawm dua li txhua yam khoom siv tseem tau tsim. Thaum Lub Ob Hlis 1946, J. Ob peb xyoos, cov khoos phis tawj yuav tshwm sim hauv cov tsev kawm qib siab, tsoomfwv cov koomhaum, tsev txhab nyiaj thiab tuam txhab pov hwm.
Pom zoo:
Yuav ua li cas koj tsis nco qab lub network ntawm Kindle?
Coj mus rhaub lub npe ntawm lub network koj xav hnov qab. Ntawm qhov screen qhia koj nkag mus rau tus password, xaiv Tsis nco qab. Tswv yim: Yog tias saib Kindle Fire hauv toj roob hauv pes saib, coj mus rhaub khawm tshem tawm cov keyboard kom rov qab mus rau lo lus zais screen xaiv Tsis nco qab
Puas nco nco ua dab tsi?
Lub cim xeeb xau txo qhov kev ua haujlwm ntawm lub khoos phis tawj los ntawm kev txo tus nqi ntawm lub cim xeeb. Thaum kawg, qhov phem tshaj plaws, ntau dhau ntawm cov cim xeeb muaj yuav raug faib thiab tag nrho lossis ib feem ntawm lub kaw lus lossis cov cuab yeej tsis ua haujlwm raug, daim ntawv thov tsis ua haujlwm, lossis lub kaw lus qeeb heev vim muaj kev sib tsoo
Kev nco nco hauv kev puas siab puas ntsws yog dab tsi?
Kev nco qab hauv kev nco yog hais txog kev puas siab puas ntsws ntawm kev rov qab cov ntaub ntawv los ntawm yav dhau los. Muaj peb yam tseem ceeb ntawm kev rov qab: rov qab dawb, cued recall thiab serial recall. Psychologists sim cov ntaub ntawv rov qab los ua ib txoj hauv kev los kawm txog cov txheej txheem nco ntawm tib neeg thiab tsiaj txhu
Peb hom kev nco nco yog dab tsi?
Hom Sensory Memory Nws tau xav tias muaj ib qho subtype ntawm kev nco qab rau txhua yam ntawm tsib lub ntsiab lus tseem ceeb (kov, saj, pom, hnov, thiab hnov tsw); Txawm li cas los xij, tsuas yog peb hom no tau kawm ntau yam: echoic memory, iconic memory, thiab haptic memory
Ib qho piv txwv zoo ntawm kev nco nco yog dab tsi?
Ib qho piv txwv ntawm daim ntawv nco no yog thaum tus neeg pom ib yam khoom luv luv ua ntej nws ploj mus. Thaum cov khoom ploj lawm, nws tseem khaws cia hauv lub cim xeeb rau lub sijhawm luv luv. Ob hom kev kawm feem ntau ntawm kev nco nco yog iconic nco (visual) thiab echoic nco (suab)