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'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'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'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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