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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?