Amakhompyutha, Wokusebenza
Inkumbulo PC Virtual
Labo abasebenzisi computer abangekho lucky ngokwanele ukubamba sokuthuthwa kwempahla ekhazimulayo izinhlelo esekelwe izilimi 8086-ehambisanayo kakhulu kahle kanjani ngaleso sikhathi kwaba nenani ebalulekile inkumbulo ifakiwe. Akhawunti ngokoqobo amakhilobhayithi: idlule eziyisisekelo 640 kbps futhi sifinyelele "kumnandi" kb 736 ukuthola noma yimaphi isandiso ekhethekile zangaphandle, okuyinto imali eningi e maqondana zezindlu wosayizi omkhulu. Nokho, ubuchwepheshe bama-computer savela ngokushesha futhi ngokushesha umgoqo ngokwengqondo 1 megabyte waphasiswa. RAM amamojuli babé ezincane kakhulu, ngaphandle uvele zonke izilimi usebenzisa yayo ngokugcwele. Hhayi emuva, futhi izicelo. A mlando kwaba okukhiphayo windose okufushane lwesithathu, lapho inkumbulo virtual esetshenziswa. Nokho, lezi zinyathelo eqinisekile kuphela isiqondiso elalizoba indinganiso yabo bonke izinhlelo zokusebenzisa.
Kuyini inkumbulo virtual? Simelela amakhompyutha ezimbili ezifanayo esebenzisa i-Windows 3, kuphela eyodwa ine-1 MB inkumbulo, futhi kwelinye - 2 MB. Khetha izinhlelo zokusebenza isofthiwe esekelwe umthamo - ukusilahla program nokusebenza ngokuzikhandla, ngoba kufanele nokwandisa imikhiqizo yabo 1, 2, njll wamamegabhayithi. Dala uhlelo eyenzelwe ubuncane esezingeni 640 KB - kusho ukuthini ukuyeka ezinye amathuba, "drive" isicelo in the ifremu. Kugcila ku-2 MB - kusho ukulahlekelwa labo abangase babe abathengi abanama-computer kuzo zonke 1 MB. Kuyaqondakala ne-Microsoft, ngakho lo mshini kwahlongozwa, ngokuthi "inkumbulo virtual". Program akusadingeki ukwazi ukuthi kungakanani ukufakwa computer ngamunye. Yiqiniso, abanye imingcele, nokho, ziyabhekelelwa, kodwa ukunakekelwa jikelele mayelana nendlela 'umngane wabo' afune izinto ngenkani kwabanye izicelo futhi izingxenye computer uthethe yesistimu yokusebenza. Ayikho izimangaliso lapha, yebo, akwenzeki. Umgomo we operation ezinzima elula.
Thatha isibonelo icala lapho khompyutha uqalise nge 1MB, 2MB ngaphansi isicelo. Ingxenye ivolumu elalihlala uhlelo ngokwayo, ngakho kusukela ku-1 MB atholakale umsebenzisi kb 500 kuphela (okwesikhashana). Gijimani isicelo. Uma imemori virtual inikwe amandla noma abakhubazekile, uhlelo oluthatha kb 500. futhi izitobhi, enikeza out mayelana umyalezo wephutha. Kodwa kuhlukile, uma indlela ifakiwe: ukwenza wona lawo mandla 500 kb, uma isicelo kwimemori olandelayo, block idatha ebhaliwe ifayela ekhethekile kudiski, ukukhulula ivolumu ku-RAM. indlela "okusobala" ngoba isicelo. Eqinisweni, imemori virtual - iyingxenye umsebenzi, kodwa hhayi ibekwe chips, futhi sediski. isixazululo enjalo iye yaba impumelelo ukuze namanje usebenza ngcono yayo. Ngakho, ngo-windose yamuva 8 kuya sebekujwayele ifayela lokuvula ifayela eliyikhasi wanezela swapfile, okuhloswe kuphela izicelo kamasipala.
Ngezinye izikhathi, abasebenzisi angabona umyalezo uhlelo ongaphakeme kumemori virtual. Indlela ukukuchazela ukukhanya kulokhu okungenhla? Zonke ngaphezulu onemibuzo uma ucabangela ukuthi sediski kwi-hard drive yakho basengaba. Esinye sezizathu okungenzeka kakhulu ngoba lokhu esimweni esingafanele inkumbulo virtual indlela. Nakuba uhlelo ezenzakalelayo ukukhethela ukuzilawula ngokuzenzekelayo usayizi wefayela lokuvula, uvumela control manual nge inkomba kohlaka eqinile. Ingabe kuyadingeka ukwenze kanjalo noma cha - umsebenzisi ngamunye unquma bebodwa, kodwa uma kwenzeka iphutha ngenxa yokuntuleka ivolumu kuyodingeka ukukhulisa mkhawulo we kuvunyelwe. It is amisiwe ekusebenzeni ngezimiso (lungatholakala ngokusebenzisa izakhiwo "Computer yami", noma control panel).
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