RAM Ѻ ROM Ф


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    Ѥ Hitzuja's Avatar
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    Talking RAM Ѻ ROM Ф



    ҡҹʹҹФѺ ͹ 10 Ǻ RAM Ѻ ROM ͹͹˹觷ªҷӧҹ ǹҡͺش§ RAM ҡ͹çҡáç ¨оѡѹҡҹաҤѺ



    ٻͧǡѺʹ¹ҴٹФѺ ҡ ФѺͧáͧšͪͨԧ ENIAC Ҩҡ Electronics Numerical Integrator and Computer (ػóӹdzҧùԤ) Ҿٴ֧öͧ ENIAC С ͧԴŢ㹻ѨغѹФѺ (ҴҧѹҡԧѺҧ ENIAC ѺͧԴŢ㹻Ѩغѹ) ... ENIAC 繼ŧҹͧ John W. Mauchly ( Ѻ ͪ) J. Prespern Eckert ( ͤõ) 㹻 .. 1946 աзǧͧðԡ (Pentagon) 繡ͧع (ҡѹҨشʧѡͧçù "ͤӹdzԶաع׹˭" Ѻ) ...

    ENIAC ѹáѺǢ RAM Ѻ ROM ФѺ ??? ԤѺ鹪繤ǢҴ˹ ͹ §ʹ٭ҡ (vacuum tube electron tube) ӹǹ 18,000 ʹ !!! Ҿͤسعͧ !!! 18,000 ʹѺ


    ʹ٭ҡ㹪ǧ .. 1950 Ѻ ֡ҾǤǴ ʹǹ 18,000 ʹ

    ٴ֧ʹյҡФѺ ... ʹյ觤 ... عԡؤáͧ˹¤ǡѹѺ

    RAM Ҩҡ Random Access Memory (˹¤Ҷ֧Ẻ ) ˹¤ѡ кؤ Ѩغѹ ˹¤ӪԴ ͹حҵ¹ҹ㹵˹觵ҧ ҧ ǴǾ 觵ҧҡ红ŪԴ ҧ෻ ʹʡ բͨӡѴ㹡ҹ¹ ͧӵӴѺ͹ѧѴ բ͡ӨѴẺ ͹حҵҹ§ҧ

    ǹҡѺҧԴҡѺ ... ѧࡵ Ẻͺ . "What is computer's main memory?" ҧҨеͺ Hard disk ѧռѹ ӵͺԧ RAM Ѻ ... ͹ԴẺ áѴ Harddisk ҧǹԤѺ ... ͤѺ

    RAM Ҩѧӧҹ ͢ŷ㹡ûż ͧѧӧҹ 价ѹ к١Դŧ RAM Ѵ Volatile Memory ͧҡ˹¤ӪԴ红੾ ҷա俿§ҹ (ͨԧ §ФѺ)

    ͧ㹡Т ҧûż سѵԷӤѭС˹觢ͧ Ƿ˹觵˹觵ҧ ˹¤դ ѹ 觵ҧҡ෤蹺ҧҧ觵ͧ͡ ҷԵ亵Ҷ֧

    кá ʹحҡȷӧҹ¡Ѻ»Ѩغѹ ػó ¡ҡ ˹¤Ẻ᡹õ (core memory) դسѵ㹡Ҷ֧Ẻǡѹ ǤԴͧ˹¤ӷӨҡʹ᡹õ ѧ Өҡǧ (IC)

    RAM ѡǢͧѺػóҶ֧ ҡѹ ˹¤ẺŹ (delay line memory) §㹷ͺèػͷ㹡红źԵ


    ˹¤Ẻͷͧͧ UNIVAC I (.. 1951) ... áѹ ׹ѧ Proton Cannon ͧ Ironman Mavel Superheros (PSX) (ҧ-˹-ҧ-˹-R1)

    Сѧ Drum memory (˹¤Ẻ) 觷ӧҹ§촴ʡ㹻Ѩغѹ 繢ٻͧᶺٻǧ Ҩ RAM ФѺҡ÷ӧҹǴ ROM ҡ


    Drum memory ͧͧ ZAM-41
    ͧŹ

    ªԴդسѵ volatile ¶֧ŷ纨٭件һԴͧ ѡ红źԵٻͧШ俿㹵 纻Ш ѧ蹡ó 䴹Ԥ ٻʶҹТͧԻͻ ѧ蹢ͧ ᵵԡ

    ѨغѹաþѲ NV-RAM (Non-volatile RAM) ѧѡҢŶ֧§ ෤շ ෤չ⹷Ǩҡ͹ (carbon nanotube) ҡó magnetic tunnel



    Ẻͧͧ CNTs Carbon NanoTube Ѻ ... ѡҧҨֹ仪Ǣ ʹռҹ˹ѧ Physic of the Impossible ¹ Michio Kaku ҤѺ ... ا Michio Kaku Һ֧͡ CNTs зҨҧ Force Field (Force Shield) оѧҹ ҡѺ Concept ͧ Crysis ʹ¤Ѻ Nanosuit Maximum Armor ҧ¤ԴͧԴҹͧا Michio Kaku ҡ ... ͧ͡ա ͹ФѺ



    Ĵ͹ .. 2546 աԴẺ (Magnetic RAM, MRAM) Ҵ 128 Kib 觼Ե෤дѺ 0.18 ͹ 㨢ͧẺҨҡҡó magnetic tunnel ͹Զع¹ .. 2547 ѷ ԹԹ͹ (Infineon) ԴǵẺҴ 16 Mib ෤ 0.18 ͹ǡѹ

    Ѻ˹¤Өҡ͹⹷ ѷ ṹ (Nantero) ҧẺҹ 10 GiB 㹻 .. 2547

    ͧ öͧҧǹ繾Ԫѹ ӧҹ͹촴ʡǡҡ ѡ¡ ʤ (Ramdisk) ʹ仵 http://forum.pcstats.com/showthread.php?t=29132 ФѺ

    § RAM ١ѹѺ



    ػͧͧ RAM ͤ ǵʹ ROM ѹѺ ...

    ROM Ҩҡ Read-only Memory (˹¤ҹ) ˹¤Ẻá觵ǹӪǤǪԴҹ ҧ ͺѹ֡㹤 öѹ֡ (ҧ) ˹¤ӷիͿ͢ ойҵ͡Ѻ Micro Processor µç ˹¤ӻ§ š仨ҡ˹¤ (Non-volatile) ·仨红ŷͧաա BIOS (Basic Input output System) Mainboard Firmware Ǻ÷ӧҹͧ Sony PSP ͧԴŢѧդѺ ѧࡵҡҡ Memo ͧԴŢ

    Mask ROM ˹¤ӻ ŷ ж١Ҩҡçҹ鹵͹üԵ Ҩ ROM Դ ͢Źա¹ŧ ѺҹԵҡ ö ¹ŧ ROM ROM շẺẺ MOS ( CMOS) ... ҹ֡͡ ֧֡ѺФѺ

    ҡͫ ROM ẺáŨеͧҨҡçҹ еͧԵӹǹҡ֧ФҡѺ鹷ع㹡üԵ աçҹԵͫըŷ ѺкԨԵͤԵ͡Ҩӹǹ ҡеͧ ˹¤ ROM ö˹¤ ROM ͧ ˹¤ӹ¡ PROM (Programmable Read Only Memory) ˹ ӻ 红տ (fused) ˹¤ӷŷͧж١ ¼ͧ »͹çѹ٧ (HIGH VOLTAGE PULSED) ͫ PROM ѧ١ ŷءͷءԵդҡѹ ͨԡ 1 ա»͹çѹ٧仨 ҧ Ҵ ˹觷鹵ͨԡ 0 PROM ١ ö¹ŧա ͧҡҴö ˹¤ӪԴ 㹧ҹ٧ 觤٧ ˹¤ӷ骹Դ

    ˹¤ӻ EPROM ˹¤ӻ PROM öź ѺҹҧǧõẺҨͧա ͢ Ũж١ ¼¡ѭҳ çѹ٧ (HIGH VOLTAGE SIGNAL) ҹ㹵 EPROM ԸǡѺ PROM ˹¤ӻ 2 źŴѧŵŵ ͷ¡ѹ UV PROM ǹա˹˹¤ӷźŴ ¡ EEPROM Ҩҡ Electrical Erasable PROM

    ˹¤ӻ UV PROM ¡û͹çѹ俿ҷ ТŨж١ѹ֡ʹ Ѻźŷ¡éʧŵŵ 㹵 ͫ ¼ҹҧͧʷӴ¼֡͵躹ͫ ͩʧ˹ (ҳ 5 - 10 ҷ) ŷ㹡ж١ź 觪ǧҷʧöҡŷ (DATA SHEET) ҡѺ EPROM

    ... ǹҡҡ EEPROM Ѻ¹ѹҡ ¹Ѻ Mikro C Ѻ ͹ԡ¹觧 ǡ Project µ͹

    㹪ԵШѹͧҹ ʹͳҤ ÷ ROM ҧ ???



    Hard disk drive, HDD (1954) ŧҹҡͧԨ IBM ҡʹյѨغѹ
    ѹ ROM ? Һ͡ç Ѵ non-volatile ͻԴͧšѧ ...



    8-inch, 5¼-inch, and 3½-inch Floppy disks (1969 - 1982)
    ROM ʹԵȵɷ 19 ǹǹԴ֧ʹյ ͹ѧ¤Ѻ 㹡ͧ IBM-DOS 3.0 5¼-inch 2 3½-inch ա



    Gramophone record § !!! 12-inch (30-cm) 33 1/3 Rpm (ͺ/ҷ) ... ROM Ѻ ǡҡѧŧФѺ ѧҧѹ ҿѧҧ׹֡šФѺ ѹѧ䧡



    CD-ROM (1979) ѡäѺ ˹ӫѧ繷红ѡͧҡ HDD ա ... ǧͧشؤͧͧ Playstation Ѻ ػԤ 700 MB 80 ҷբͧŧ



    DVD-ROM (1993) ѧҡؤͧͧ Playstation DVD-ROM ըӹǹҡ ա˵ؼŷ DVD ᷹ CD ͧط§Ѻҹͧä ´٧ ... DVD 4 ẺѺ ~4.7 GB (single-layer) ~8.54 GB (double-layer) ~9.4 GB (rare-single-layer) ~17.08 GB (rare-double-layer)



    VCDHD (Versatile Compact Disc High Density) ٷҤѧ㹡蹹ѡ ¤Դ VCDHD դöѹһзѺ "͵-͹ CD ẺЪѺ" ... Դ Դա Դ Դա Դ Դա ѧ蹵 ... ش 4.7 GB DVD 令Ѻ 㹻 Russia, Ukraine Poland § ! ѹ



    LD, LaserDisc (1978) Ҿس繹 ͡ҤѺ Ҵѹҧ˭ !!! ... !!! ... !!! ԧѺ ҤԴ CD ҧѺ LaserDisc ǵ֧ͧ 7 ҧШ¤Ѻ ˭袹ҴǤ 60 ҷ ѴẺ CLV , 30 ҷ CAV



    EVD , Enhanced Versatile Disc (1999) ѡҡѡ ¤Ѻ ¹ѹ ... 繧ҹԨ¢ͧǨչѺ ˵ؼҤ license ͤ͹حҵشʹᾧ $13–$20 US ͧ ($16.5 x 33.6 = 437) ´¤Ѻ͡



    MD, MiniDisc (1992) ѹǧ֧Ѻ ͹鹹Ҩؤ Sony Walkman 繨ѺҾ Sony PSP UMD ᷹ ... ҵðҹ 80 ҷ Hi-MD ֧ 1 1 GB



    GD-ROM, Giga Disk read-only memory ǵͧ !!! Թҹ Galaxy ETC. ˹ GD-ROM Ѻ ҧ Virtua Cop 3, Ghost Squad, The House of The Dead 3 GD-ROM 駹鹤Ѻ 繼żԵҡ Sega Yamaha Ѻ NAOMI, Triforce Chihiro ... 1.2 GB



    UMD, Universal Media Disc (2003) PSP ǧáͧ UMD ҧФѺ Ҿ¹좹ҴǷҤ͹Ҵ դѺ Burnout : Legend ¤ŧ Burnout Ҥ֧ 1,650 ҷ ... UMD 2 ẺѺ 900 MB (single layer) 1.8 GB (dual layer)

    Blu-ray, BD (2004) 觷褹ѡ˹ѧҡҡش ͧҡͧ Blu-ray (ͧ蹡͹ Ǩ价 ?) ͹ Blu-ray 2 ҧѡѺ Ҿ¹ Ѻ PS3 ... ҡ֧ 25 GB (single-layer), 50 GB (dual-layer) ͳҤҨ 1 TB (future)
    HD-DVD, High-Definition/Density DVD
    繤觢ͧ Blu-ray ҡ͹ʧ High-Definition ŧ HD-DVD ͧشҧ Blu-ray ŧҴç Ѻ HD-DVD ʹѺʹعҧͧԴѧ仴 ҧ Xbox360 ҹ HD-DVD ѡ 繢¶ºѺ PS3 ʹѺʹع Blu-ray ... »ҳ 15 GB (single layer) 30 GB (dual layer)




    HVD, Holographic Versatile Disc (2009) ҡ¹ѡѺ HVD §Ţǵͧͧ !!! ФѺ
    Spoiler:
    㹷ҧɮ 1-6 TB (1024-6144 GB) ѧ ط 10-100 TB (10240-102400 GB) ҡª·ʹ 18 !!!
    ͹ѧԨ¡ѹѺ ͧաҹ ...

    ԧ§ҹ͡Ѻ Ҩй觹Ѻ礧˹¹¡ҹ觹ѺǹԴ֧ ... ROM աǷ͡ Flash Drive Card ҧ SD, MMC, Memory Stick ǡ෻ŧ աҡ¤Ѻ ... ҵͳҤաФѺ ˹ TB ҨѺԵШѹ Ҩ÷ҡ仨ҡǧ е͹ RAM ᷹ ROM ROM ᷹ RAM 蹡ѹѺ (RAM ᷹ ROM Ramdisk ǹ ROM ᷹ RAM ͧ躹 Harddisk Virtual Memory Paging File) ͧʹٷ RAM ROM ѹ令Ѻ

    ͺسѺ

    Credit : http://en.wikipedia.org/wiki/Computer_data_storage , http://th.wikipedia.org/wiki/ , http://en.wikipedia.org/wiki/Random-access_memory , http://th.wikipedia.org/wiki/ , http://en.wikipedia.org/wiki/Vacuum_tube , http://en.wikipedia.org/wiki/Drum_memory , http://en.wikipedia.org/wiki/Delay_line_memory , http://forum.pcstats.com/showthread.php?t=29132 , http://masterorg.wu.ac.th/source/det...&paths=wu-stsp , http://en.wikipedia.org/wiki/Universal_Media_Disc , http://en.wikipedia.org/wiki/Blu-ray_Disc , http://en.wikipedia.org/wiki/HD_DVD , http://en.wikipedia.org/wiki/Holographic_Versatile_Disc , http://sirinas-mai.blogspot.com/2008...emory-rom.html (¹ MaiHaNaKa) , http://en.wikipedia.org/wiki/VCDHD , "Physic Of The Impossible" by Michio Kaku, 2008 (Textbook) - ʹ˹ѧ ? ҫҹ Asia book Ѻ ըӹǹФʹ㨿ԡѹ ͧǧ˹ [˹һ]

    Тͺسس sailomsaengdaed ¤Ѻ س֡͡Ҽҧ Primary Second Storage ѧաѹѺ Tertiary storage 蹡 Database Ѻ ˹ǡѹ ...

    : 27/09/2552 (10:50 AM)


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    Ҫԡ TG striderblue's Avatar
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    ըԧ ҧͧ͹ѹ

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    ͧ TG shadowd's Avatar
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    Ҫԡ TG 蹾 yunapk48's Avatar
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    Ҫ! ѹѧö٧شҳ 10-100 tb ҡ hdd աʧ龡 hdd 澡§ҧ




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    Ҫԡ TG