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Address Bus:nItniynuytdntontranyftrnaddrtyytynofnotoorSnlocatonynfornthtn PUntonmtrforonrtad/writtnomtratonyninnthtn
otoorS.n
Control Bus:nItniynuytdntontranyftrncontrolnyignalynbttwttnnvariouyncoomuttrncoomontnty.n
Thtndatanbuy,naddrtyynbuy,nandncontrolnbuyntogtthtrnconyttuttnthtnySyttonbuy.nFign1.7nndtmictynthtnflownwithinnthtn
ySyttonbuy.nDatantnttrtdnfroonanninmutndtvictniynytortdninnthtnoainnotoorS.nThtn PUnthtnnacctyytynthiyndatanuyingnan
datanbuy.nThtnaddrtyynofnthtnotoorSnlocatonnfroonwhtrtndatanwillnbtnacctyytdniyncooounicattdnvianthtnaddrtyynbuy.n
Thtnrtadnornwrittninytructonynartncooounicattdnthroughnthtncontrolnbuy.n ioilarlS,ntonwrittndatanintonthtnotoorS,n
thtn PUnmlactynthtndatanonnthtndatanbuy,nandnthtnaddrtyynofnthtnotoorSnlocatonnwhtrtnthtndatanhayntonbtnwritttnniyn
mlactdnonnthtnaddrtyynbuy.nOnctnthiyniyndont,nancontrolnyignalniyniyyutdntonwrittnthtndatanfroonthtn PUntonthtndtyignattdn
otoorSnlocaton.
Inmutnandn
PU MtoorS Outmut
ontrolnbuy
System bus
Addrtyynbuy
Datanbuy
Fign1.7:n SyttonBuy
Give two examples of the following:
(i) The output devices that generate sound as output.
(ii) The devices that produce a hard copy output.
(iii) Secondary memory storage.
(iv) Types of bus:
1.6 Data Capturing, Storage, and Retrieval
Ton mroctyyn thtn data,n wtn nttdn ton firytn camturtn it.n Thtn datan iyn tSmicallSn ytortdn inn an convtntonaln filtyn orn databaytn
oanagtotntnySytton(DBM ).n
(A) nData Capturing:nDatancamturingnrtftryntonthtnmroctyynofncolltctngnandnrtcordingn
inforoatonn froon variouyn yourcty.n Thtn inforoatonn colltcttdn cann btn inn thtn
foronofnnuotricalndata,nttxt,nioagty,nornothtrntSmtynofndata.nItniynanniomortantn
yttmninnoanSninduytrity,nincludingnhtalthcart,nfinanct,noarkttng,nandnoort.nItn
allowynorganizatonyntoncolltctnandnanalSztndatantonoaktninforotdndtciyiony,n
iomrovtnmroctyyty,nandnidtntfSntrtndy.
nThtrtn artn oanSn otthodyn forn camturingn data,n includingn oanualn datan tntrS,n
autooatcndatancamturtnuyingnoachintynyuchnaynycanntrynornytnyory,nandnonlintn Fign1.8:nUyingnanbarcodtn
foroynornyurvtSy.nForntxaomlt,nthtnbarncodtnycanntrn(Fign1.8).nThtnaccuracSnandn ycanntrntoncamturtndatanfroonan
rtliabilitSnofndatancamturtniyncrucial,nayntrrorynorninconyiyttncityninnthtndatancann labtlnmayttdnonnanmroduct
ltadntonincorrtctnconcluyionynandndtciyiony.
16 Touchpad Informatics Practices-XI

