intro 2 computers

8/8/2019 Intro 2 Computers

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S torage Dev ices A smart card stores data n a thinmicroprocessor embedded in the card


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Commun icat ion Dev ices A communications device is a hardwarecomponent that enables a computer tosend and receive data, instructions, and

information to and from one or morecomputers T ransmission media


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Computer software

System software consists of programs tocontrol the operations of computer equipment O perating system

M icrosoft Windows V istaM icrosoft Windows XP

Apple M ac O S XL inux

Booting Graphical user interface (GU I)

Icon


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S oftware

Application software consists of programs designed to make users moreproductive and/or assist them withpersonal tasks Word processing Spreadsheet

Database Presentation graphics


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Data Representat ion

Bit- one binary digit1 Byte= 8 bits

M orse code AS CII code

UnicodeWhich is better? Why?

01 00 000 1 A

01 00 00 1 0 B01 00 00 11 C

.- A- B-.-. C


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Wi ndows

O perating System


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Among your team, take a poll of computingdevices each person uses on a regular basisalong with the activities they use the devicesfor, such as sending text messages on a cellphone, writing documents on a laptop, reading

electronic books on a book reader such asKindle, and so on . C ome up with the perfectdevice or smallest combination of devices thatyou would need to own to perform all these

activities .


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R esearch two careers of your choice that youare pursuing or may pursue . Determine howcomputers are used in those careers .Describe the types of general purposecomputers (i .e . desktop, laptop, netbook) you

use on a regular basis.

Select the computer you own or the one you use the most (at workor a public computer such as in a library or anInternet caf) . What improvements would you

like to see made to the computer that wouldmake it more valuable to your everyday use?

intro 2 computers

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