Mrs. Staniec. 1. Identify different types of computer devices. 2. Identify the role of the central...

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GUIDE TO IDENTIFYING COMPUTERS Mrs. Staniec

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Transcript of Mrs. Staniec. 1. Identify different types of computer devices. 2. Identify the role of the central...

Page 1: Mrs. Staniec. 1. Identify different types of computer devices. 2. Identify the role of the central processing unit. 3. Identify the difference between.

GUIDE TO IDENTIFYINGCOMPUTERS

Mrs. Staniec

Page 2: Mrs. Staniec. 1. Identify different types of computer devices. 2. Identify the role of the central processing unit. 3. Identify the difference between.

Objectives:

1. Identify different types of computer devices.

2. Identify the role of the central processing unit.

3. Identify the difference between an operating system and application software.

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Computers are EVERYWHERE!

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What is a COMPUTER?

An electronic device, operating under the

control of instructions stored in its own

memory unit, that can accept data

(input), manipulate the data according to

specified rules (process), produce

information (output) from the processing,

and store the results for future use.

Page 5: Mrs. Staniec. 1. Identify different types of computer devices. 2. Identify the role of the central processing unit. 3. Identify the difference between.

Brief History of Computers

A computer originally meant a mathematician.

Gradually developed into machines. The 1st computer in the computing world

is known as ENIAC (Electronic Numerical Integrator and Calculator).

ENIAC

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Computer Anatomy

Computers have three main components:

1. Hardware

2. Operating System

3. Applications

CO

MPU

TERS

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Hardware

Speaker

MouseKeyboard

Monitor

Tower Case

• The physical components of a computer system.

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Operating System• Program that controls the computer,

enabling the hardware and application software to work together.

• For example, Windows 7, Mac OS X, etc.

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Applications

• Set of instructions that performs tasks and extends the functions of the computer.

• Also known as a program or software.

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How Computers Work

Three stage process:1. Input2. Processing 3. Output

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Categories of Computers Mainframes (1940s -

1970s) Big Powerful Support many users

Supercomputers Large mainframe Hundreds of CPUs Single task focus

For example, tallying census results

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Categories of Computers

Minicomputers Older Like small

mainframes

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Categories of Computers

Microcomputers Originally for single

user Called PCs

Desktop systems Portable systems

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Categories of Computers

Handheld Computing Devices Smartphone GPS Apple iPod E-Book Reader

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Connecting Computer Systems

Microcomputers Decentralized processing Flexible storage

Decentralized Centralized on server

Sharing of resources through networks LAN (Local Area Network) WAN (Wide Area Network) Wireless (WiFi)

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Connecting Computer Systems

Connecting to the Internet Single computing device or LAN (Local Area

Network) Use routers to connect

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Microcomputer Networks

Sharing resources

Storage

Printers

Scanners

Applications

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In-class Activity

Complete Chapter 1 Review Questions


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