Information Technology Reference
In-Depth Information
external.storage.drives,.but.generally.they.are.built.to.be.able.
to.be.used.without.any.of.those.attachments..This.makes.a.
difference.in.the.data.that.might.be.found.on.those.devices,.
because.peripherals.require.drivers.and.create.their.own.set.
of.logs.and.system.iles.
Other.than.the.difference.in.hardware,.there.will.often.be.
different. operating. systems. used. on. mobile. devices.. Smart.
phones.especially.are.likely.to.be.run.using.specialized.oper-
ating.systems.
Each. operating. system. will. store. the. required. iles. and.
data. needed. to. run. their. applications. in. different. ways.. We.
look.more.closely.at.that.in.a.future.chapter,.but.sufice.it.to.
say. here. that. this. can. affect. your. ability. to. access,. acquire,.
organize,.and.preserve.what.may.be.important.information.
stored.on.those.devices.
3.8 PHYSICAL ACCESS RECORDS
Another.important.electronic.record.that.many.people.might.
not.consider.are.the.records.of.your.entering.and.leaving.the.
building.where.you.work,.or.other.facilities.where.you.shop,.
work,.or.learn.
Whenever. I. enter. my. workspace,. I. use. an. identiication.
card.that.I.wave.in.front.of.a.proximity.reader.that.looks.like.
a. little. gray. box. with. a. red. light. on. it. that. turns. green. and.
unlocks.the.door.if.I.have.the.correct.authentication.to.enter..
That.creates.an.electronic.record.of.my.entrance.into.the.part.
of.the.loor.where.I.work.(Figure 3.8).
When.you.take.classes.or.go.shopping.you.may.use.loy-
alty,.membership,.or.ID.cards.to.register.or.to.get.discounts,.
student.fees,.or.other.privileges.for.which.you.need.to.authen-
ticate.your.identity..Whenever.you.use.one.of.those.methods.
of.identiication,.another.electronic.record.is.created.
These.records,.for.the.most.part,.are.probably.saved.into.a.
database..Often.this.will.be.a.proprietary.system.that.was.cre-
ated.by.someone.speciically.for.the.task.of.tracking.ingress.
and.egress.or.access.to.a.facility,.or.access.to.privileges.such.
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