external memory and raid arrays

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2-mavzu. kompyuterlarni tashkil qilishning raqamli mantiqiy asoslari 17 - subject . external memory and their types, raid arrays . 17-mavzu. tashqi xotira va ularning turlari, raid massivlar. plan 3 external memory and their types . raid arrays . reja 4 tashqi xotira va ularning turlari. raid massivlar. 5 computer external memory big size information long time save for designed . of the computer external memory to energy unrelated is _ external memory magnet and optics on disks and magnet on tapes be _ _ possible . 6 kompyuternig tashqi xotirasi katta hajmdagi ma’lumotlarni uzoq vaqt saqlash uchun mo’ljallangan. kompyuterning tashqi xotirasi energiyaga bog’liqmas hisoblanadi. tashqi xotira magnit va optik disklarda va magnit lentalarda bo’lishi mumkin. 7 external memory characteristics memory size ( carrier type depending on ); murojaat time ; summer work density - a single corridor length unit written information _ _ amount (1 bit / mm); information exchange …

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- describes a group of disks with a magnetic coating and rotating at high speed . qattiq magnitli disklar (vinchestr) zamonaviy kompyuterlarning ajralmas qismi hisoblanadigan vinchestr (hdd – hard disk drive) – o’zida magnit qoplamali va yuqori tezlikda aylanadigan disklar guruhini tavsiflaydi. 15 winchester size : up to rotation period ( frequency ): 7200 ay / min , 1000 0 ay / min connection : ide, sata external winches qmd = solid magnetic disk hdd = hard disk drive 16 vinchestrlar hajmi: 4 tbaytgacha aylanish davri (chastotasi) : 7200 ay/min, 10000 ay/min ulanish: ide, sata tashqi vinchestrlar qmd = qattiq magnitli disk hdd = hard disk drive hard magnetic disk qattiq magnitli disk first solid disk carriers in 1955 functional out _ 50 discs with a diameter of 24 inches consists of carrier size 5 mbytes rotate _ _ speed 1200 rpm . _ _ carrier size modern two two …

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riladi va kompyuterning raqamli kodiga aylantiriladi (aks ettrish – 1, aks etmaydi – 0). laser ( optical ) discs : cd - compact disk ( compact disk ) and dvd - digital video disk ( digital disk ) lazerli (optik) disklar: cd -compact disk (kompakt disk) va dvd - digital video disk (raqamli disk) laser disks classification : writing opportunity there is it's not cd-rom (compact disk read only memory) and dvd-rom (digital video disk read only memory) ; one times write and a lot times reading cd-r and dvd-r ; a lot times again write cd-rw and dvd-rw ( rw - re writable). lazerli disklar klassifikarsiyasi: yozish imkoniyati mavjud emas cd-rom (compact disk read only memory) va dvd-rom (digital video disk read only memory) ; bir marta yozish va ko’p marta o’qish cd-r va dvd-r; ko’p marta qayta yozish cd-rw va dvd-rw (rw – re writable). 31 laser cds …

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martalik yozish dvd-rw, dvd+rw – ko’p martalik yozish (1000 sikl) dvd-ram – ko’p martalik yozish (100000 sikl) bir qatlamli bir tomonlma 4,7 gbayt ikki tomonlama 9,4 gbayt ikki qatlamli bir tomonlama 8,5 gbayt ikki tomonlama 17,1 gbayt dvd = digital versatile disk yoki digital video disk qisqa to’lqin uzunlikli lazer cd disk capacity = 700 mb dvd disc capacity = 4.7 gb or 8.5 gb cd disk hajmi = 700 mbayt dvd disk hajmi= 4,7 gbayt yoki 8,5 gbayt 37 hd dvds _ hd dvd = high definition dvd i shlab release : toshiba nec and in collaboration with microsoft is supported by 38 hd dvd-disklar hd dvd = high definition dvd (yuqori aniqlik) ishlab chiqarish: toshiba nec va sanyo lar bilan hamkorlikda microsoft, intel tomonidan qo’llab-quvvatlanadi. 39 y high density blu-ray discs blu-ray disc = blue ray disc, bd ( blue ray - blue laser rays ) bd-rom , …

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stored possible (20 to 100 years ). flash memory much ixcham and magnet and optics to disks than noticeable degree kam power spends ( about 10-20 times ). information reading and write for memory card mobil devices installed or usb port through to the computer connecting special to the carrier ( cartridge ) . universal cartridge flesh-xotira kartalari flesh-xotira kartalarining axborot hajmi 128 gbaytgacha bo’lishi mumkin. flesh-xotiraga yozilgan ma’lumotlar juda uzoq vaqt saqlanishi mumkin (20 yidan 100 yilgacha). flesh-xotira ancha ixcham va magnit va optik disklarga qaraganda sezilarli darajada kam quvvat sarflaydi (taxminan 10-20 marta). ma’lumotlarni o’qish va yozish uchun xotira kartasi mobil qurilmalarga o’rnatilgan yoki usb-porti orqali kompyuterga bog’lanadigan maxsus tashuvchiga (kartriderga) kiritiladi. universal kartrider 45 flash memory flash drives (64 gb each ) flash cards ( 64 gb each ) c. justification for energy demand not allowed y uqori speed ixcham 1 gb for high price write and …

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2-mavzu. kompyuterlarni tashkil qilishning raqamli mantiqiy asoslari 17 - subject . external memory and their types, raid arrays . 17-mavzu. tashqi xotira va ularning turlari, raid massivlar. plan 3 external memory and their types . raid arrays . reja 4 tashqi xotira va ularning turlari. raid massivlar. 5 computer external memory big size information long time save for designed . of the computer external memory to energy unrelated is _ external memory magnet and optics on disks and magnet on tapes be _ _ possible . 6 kompyuternig tashqi xotirasi katta hajmdagi ma’lumotlarni uzoq vaqt saqlash uchun mo’ljallangan. kompyuterning tashqi xotirasi energiyaga bog’liqmas hisoblanadi. tashqi xotira magnit va optik disklarda va magnit lentalarda bo’lishi mumkin. 7 external memory characteristics mem...

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