Evolution «n Data StorageMed ums

Punch Ca d

Punch card rs one or «he o«des«

ways known «o s«ore «n«onna«rcn|« rs a prece c«s«r«« paper «na«ccn«arns drg««a« «n«cnna««cn wnrchrs represen«ed by «he presenceor absence o« hc«es runhen IBM

deve«oped punch card «abu«a««cnrnachrne «c record census data� r«luck 3 years «o ccn«p«e«e «hecensus

Punched Tape

A more advanced way c«making punch cards «« «scumpnsed c« «onger ccnnec«eds«r«ps Each row on «he «apepresen«s one cnarac«er

Selectr r« Tu be

An ear«y «orrn or d«g««a« cc«npu«errnernory bu« never made «« «c «hecommercial use I« was ap«e «c

s«ore up«c ADDD pus bu« ended upas shon hved� overpowered byo«her produc«s rn «ne coup«e o«years

and r« was «auncned by IBM

Frrs« ccrnrnercral da«a «apewhrcn was used «o record

cc«npu«er da«a on UNVVAC I«was named unrservc «ape ««sDa«a «rans«er ra«e was 72m:

charac«ers per second bu« r«was made up o« «ne«a« mrnwhrcn was very heavy «ornoprhze and «c enlarge m

capacr«y

mm H a rd Drive

Frrs« hard dnve was humungous

|n««ra«|y r« had «he siurage capacnyrus« under Smb bu« sccner IBMcame up wr«n «ne gigabyte nardmsk wncse cos« was sum uuu

«« was «he and cornrnercra«

op«rca« disc s«orage rnedrurnFunher. «ne drsx was very brgnavrng a 3Dcm d«a«ne«erHowever� r« had «he capacny «o

ncur s«rargh«

QFloppy

Frrs« «cppy was huge «n srze r eBdnch ye« r« was very e«hc«en«Later «he srze c« «he drs«<e««e

was reduced «o 3 5�mch on«y

Laser Disc

p«ay audro and vrdeo mes «or one

@«« «s an cp««ca« disc� used «c

s«ore drgnal da«a The «onna«was no« develuped «o s«ore da«arnruauy Moreover� «ne arrrva« c«cD Rom p«ayed a very crr«rca«rule rn «he success c«cD&#39;s

«a«e«y

Compact Cassette

|« rs used «or audro recordrng andpizybzck cornpac« casse««e wasvery «arnous durmg19BD�siL7rrecordrng or cornpu«er da«a and«or «rs«enrng «o n«usrc

Compact Disc

«omega «n«roduced zrp dnve rn1994 as a boon «o «ne Icwer

capacr«y cmcppy whrcn was1 Mmb only Funher. a higherduamy rnagneuc coalmg wasused rn «« |« ccu«d s«ore up «o«Dumb c«da«a wnrch «nade «

equrva«en« «c «he 70 rbppres

CD ROM

|« rs popu«ar«y used «c drs«rrpu«ecc«npu«er suilware The devrcewas rnrhauy s«ow and expensrveHuwever r« managed «c pusnaway «cppy discs by makingcDs no«d up«c AGE c«da«a.rnuch «ncre «nan a noppy drsc

3434/

TDVD was «he successor c«

cc«npac« drsc Funher. «ne«ransrucn «rcrn cD «o DVD was

rnuch «as«er «nan Flappy «o CD|« rs now consrdered as one c«

«he «ncs« cos« e««ec««ve means

o« por«ap«e s«crage

Jazz Drive

lumega «auncned «nrs dnve ««was svmiar «c «radr«rcna« nard

dnve Funher� r« was ap«e «cs«ore «GD o« da«a Duh r« «ar«ed

due «o «ne h«gh cos« per grgapy«era«ro and due «o «he need c«

keeprng «he dnve Iyrng ««a« w«Ih«he scsx «menace

SD Memory

I« was appeared on «he s«oragescene rn eany 2DDu&#39;s I« wasrnruauy abie «d s«ore 32 «d SAMEo« da«a whrcn new has scaled

up «o use

0�Flash Drive

|« rs ccnsrdered as one or «he

remarkabie rnnovaucns a««er «ne

«cppy disc era |« ccu«d s«ore da«a«rorn Mb&#39;s «o cps its ab«h«y «c«ngger mos and «o bout «rornuse key makes r« supencr over«cppy Hash dnve a«so pm anend «o «ne noppy drscs

Blu-Ray D" c

Re|a«rve«y new «n «he marketcumpared «o CD and DvDs ««can ho«d 20 «c AUGB o« da«a I

awsd lacks srrnrlar «a CD and DVD

bu| «unchons «nreugn organrcdyes

E!@|« rs an rncredrble addrhcn «o «ne

s«crage mediums Amazon used«ne rnode|hrs« Hcwevenecog«e corned «he «enn �c\oudcompulwng� rn znue durrng arneehng «H San Jose Moreuver.r« «s consrdered as a revo«u«ron

rn «he s«orage rndusuy c«oudcornp«ernen«s «apes Da«a «apesand c«oud «oge«ner are grvrngrrse «c «ne nybrrd da«a s«orages«ra«egres wr«n«n «he rndusuy

Wait «g for the next Blg

Holograp cVersa eDsc

|« rs a new arrrva« «n «he CD

rnarke« whrcn rs desrgned «cr. «u«ure use Funher. «« could s«ore

«bu «unes rnore da«a «han a

bhrrzy disc r e 3 an; on one drsk

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