Hardware

Software

PC

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PDA

•TeleworkingTelecommunication

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•PC

Hardware

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•MHz

GHz

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–ALU

–CU

-CPU

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IC

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•RAM

•ROM

-Maim Memory

•RAM

•RAM

Maim Memory

•ROM

•ROM

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Maim Memory

Maim Memory

•MB

GB

•bit

01

•Byte

Maim Memory

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•DVD

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•DVD-RAM

•Zip Disks

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RAM

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Pixel

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•interface

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GUI

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•Microsoft Windows XP

•Windows 2000

•Linux

•Mac OS X

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Windows

Word

Excel

Access

Power

Point

Photoshop

Outlook

Money

Director

LAN

WAN

PSTN

TCP/IP

-ISP

-ISDN

-BISDN

Mbps

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-ADSL

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01

--Modulator-

DEModulator

bps

ebWideWorldW

I.E

HTTP

HTML

URLUniversal Resource Locator

Search Engine

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Hackers

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Viruses

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