Information Technology Reference
In-Depth Information
a. spreadsheet. application,. a. database,. a. picture. editor,. or.
anything.else,.a.change.is.made.on.the.storage.media.within.
the.mobile.device.
Data.on.these.mobile.devices.are.held.on.storage.media.
that.can.be.a.hard.drive,.or.some.type.of.small.memory.stor-
age.device,.such.as.a.Secure.Digital.Card.(SD.Card)..In.a.later.
section.we.look.more.closely.at.how.the.data.are.stored.on.
these. media.. Some. of. the. newer. mobile. devices. are. using.
these.types.of.nonvolatile.memory.cards.for.storage.instead.
of.the.traditional.hard.drive.because.they.are.faster.to.access.
and.can.be.removable.or.expandable.
Whichever.is.used.for.storage.on.the.mobile.device,.every.
action.you.take.makes.a.change.that.is.relected.on.that.stor-
age.medium..Let's.look.at.some.examples.
When. you. install. a. new. application,. many. things. go. on.
behind. the. scenes.. During. the. installation. process,. data. will.
be.held.in.the.volatile.or.random.access.memory..This.is.the.
memory.on.a.computer.device.that.holds.data.only.temporar-
ily..When.you.turn.off.the.computer,.that.data.will.disappear.for.
the.most.part..However,.traces.of.what.took.place.are.stored.
in.certain.system.iles.that.are.accessible.only.by.special.tools.
A.new.application.will.store.some.data.on.those.volatile.
memory. devices. for. use. during. the. installation.. Other. iles.
needed.for.the.installation.will.be.stored.in.temporary.folders.
on.the.nonvolatile.memory.storage..The.installation.process.
will.continue.by.putting.the.iles.it.will.need.to.operate.into.
different.areas.of.the.folder.structure,.depending.on.how.its.
programming.is.conigured.
Files.needed.to.run.an.application.can.be.stored.in.sev-
eral. different. folders.. For. instance,. the. main. executable. ile.
and. supporting. graphics,. dynamic. libraries. of. supporting.
programming.information,.and.so.forth,.may.be.stored.in.a.
program.ile.speciic.to.the.application..Other.iles.that.might.
be. shared. between. different. programs. may. be. stored. in. a.
separate.shared.folder..System.iles.referenced.by.the.applica-
tion.for.access.to.the.hardware.or.input/output.systems.on.
the.device.could.be.stored.in.hidden.system.folders.
