Functions of CPU

CPU ,d; gpujhd njhopw;ghLfs;

•eilngwNtz;ba njhlu;r;rpahd njhopw;ghLfis> epidtfj;jpy; Nrkpf;fg; gl;Ls;s mwpTWj;jy;fspd; mbg;gilapy; fl;Lg;gLj;Jfpd;wJ.
•cs;sPl;Lj; njhFjpapdhy; mDg;gg;gLk; juTfisAk; mwpTWj;jy;fisAk; mjDila gpujhd epidtfj;jpy; (Main Memory ,y;) Nrkpf;fpd;wJ.
•fzpdpapd; rfy gFjpfSf;Fkhd fl;lisfis toq;Ffpd;wJ.
•juTfs; nrad;Kiwg;gLj;jg;gl;LtUk; tpisTfis ntspaPl;Lj; njhFjpapw;F mDg;Gfpd;wJ.

fl;Lg;ghl;Lj;njhFjp (CONTROL UNIT)

,J fzpdpapy; kpf Kf;fpakhd gFjpahFk;. ,J fzpdpapd; Vida ghfq; fisf; fl;Lg;gLj;jy; kw;Wk; xUq;fpizj;jy; Nghd;w nrw;ghLfis Nkw;nfhs; fpd;wJ.

fl;Lg;ghl;Lj; njhFjpapdhy; epiwNtw;wg;gLk; nraw;ghLfs

•cs;sPl;L rhjdq;fspypUe;JtUk; juTfisAk; mwpTWj;jy;fisAk; Vw;Wf;nfhs;fpd;wJ. gpd;du; mtw;wpid epidtfj;jpy; Nrkpj;J Njit ahdNghJ vLg;gjw;fhd fl;lisiag; gpwg;gpf;fpwJ.
•nfhLf;fg;gLk; epfo;r;rpj;jpl;lq;fspd; mwpTWj;jy;fSf;fhd fl;lis fisf; fzpdpapd; Vida gFjpfSf;F mDg;Gfpd;wJ.
•fzpj kw;Wk; ju;f;fuPjpahd nraw;ghLfSf;Fupa fl;lisfis toq;F fpd;wJ.
•kw;iwa vy;yhg; gFjpfSf;Fupa fl;lisfis mDg;Gtjd;%yk; mtw;iwf; fl;Lg;gLj;jp> xUq;fpizf;fpd;wJ.

fzpj kw;Wk; ju;f;fuPjpahd njhFjp
(ARITHMATIC AND LOGIC UNIT)

,J gpujhdkhf ,uz;L njhopw;ghLfis Nkw;nfhs;fpd;wJ.

1.fzpjr; nraw;ghLfisr; nra;tJld; mjd; ngWNgWfis epidtfj;jpw;F mDg;Gfpd;wJ

2. ju;f;fuPjpahd njhopw;ghLfisr; nra;fpd;wJ..

CENTRAL PROCESSING UNIT – CPU

ikar;nraw;ghl;Lj; njhFjp

fzpdpapd; %is my;yJ ,jak; vd ,J miof;fg;gLfpd;wJ.
CPU MdJ fzpj> kw;Wk; ju;f;fuPjpahd jPu;Tfis vLg;gJld;> fzpdpapd; rfy
ghfq;fisAk; fl;Lg;gLj;Jfpd;wJ. ,J Processor vdTk; miof;fg;gLfpd;wJ.
ekJ ghtidapy; cs;s rpy Processors :

1. AMD
2. Cyrix
3. Intel

SECONDARY MEMORY OR AUXILIARY MEMORY

Jiz epidtfk;

,q;F gjpag;gLgit mopahky; epue;jukhf ,Ug;gjdhy; ,J Non Volatile Memory vd miof;fg;gLfpd;wJ. mjhtJ CPU MdJ ,aq;fhky; off epiyf;F te;jhYk; ,jpy; gjpag;gl;Ls;sit mope;JNghfhJ. ,J Main Memory I tpl Ntfk; Fiwe;jJ. ,J 3 tifg;gLk;.
mitahtd :
1. Magnetic
2. Optical
3. Floptical

ROM

,e;epidtfj;jpy; gjpe;Js;stw;iw thrpf;fkl;LNk KbAk;. ,jpYs;stw;iw mopf;fNth my;yJ khw;wk; nra;aNth KbahJ.
ROM ,d; tiffs;
1. PROM (Programable ROM)
2. EPROM (Erasable Programable ROM)
3. EAPROM (Electrically Alternate Programable ROM)

RAM

thrpg;gjw;Fk; gjptjw;Fkhd epidtfkhFk;. ,q;F fzpdpahdJ off MFk;NghJ ,e;j epidtfj;jpy; gjpe;J itj;jpUe;jit ahTk; mope;JtpLk;.

PRIMARY MEMORY OR MAIN MEMORY

gpujhd epidtfk;
jw;fhyj;jpy; chips ,dhy; cUthf;fg;gl;l gpujhd epidtfk;, semiconductor memory Mfpatw;wpy; memory chips IC tbtq;fspNyNa fhzg;gLfpd;wd. kpfr;rpwpa gFjpapDs; gyE}W ,yj;jpudpay; gFjpjpfisf;nfhz;l Rw;Wf;fs; IC vd miof;fg;gLfpd;wd.

1. RAM (Random Access Memory – epiyah epidtfk;)
2. ROM (Read Only Memory – mopah epidtfk;)

COMPUTER MEMORY

fzpdpapd; epidtfk;

juTfs;> jfty;fs;> mwpTWj;jy;fs; Nghd;wtw;iwg; gjpe;Jitf;fg; gad;gLk; fzpdpapd; gFjp epidtfk; (memory) vd miof;fg;gLfpd;wJ. fzpdpfs; ,yj;jpudpay; Kiwapy; juTfisr; Nrkpf;fpd;wd. ,r;nraw;ghLfs; kpd;Jbg;Gf;fis czUk; Rw;Wf;fs;%yk; eilngWfpd;wd.