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

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Presentation on theme: "Mrs. Staniec. 1. Identify different types of computer devices. 2. Identify the role of the central processing unit. 3. Identify the difference between."— Presentation transcript:

1 Mrs. Staniec

2 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.

3

4 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.

5  A computer originally meant a mathematician.  Gradually developed into machines.  The 1 st computer in the computing world is known as ENIAC (Electronic Numerical Integrator and Calculator). ENIAC

6  Computers have three main components: 1. Hardware 2. Operating System 3. Applications COMPUTERS

7 Speake r Mouse Keyboard Monitor Tower Case The physical components of a computer system.

8 Program that controls the computer, enabling the hardware and application software to work together. For example, Windows 7, Mac OS X, etc.

9 Set of instructions that performs tasks and extends the functions of the computer. Also known as a program or software.

10  Three stage process: 1. Input 2. Processing 3. Output

11  Mainframes (1940s - 1970s)  Big  Powerful  Support many users  Supercomputers  Large mainframe  Hundreds of CPUs  Single task focus  For example, tallying census results

12  Minicomputers  Older  Like small mainframes

13  Microcomputers  Originally for single user  Called PCs  Desktop systems  Portable systems

14  Handheld Computing Devices  Smartphone  GPS  Apple iPod  E-Book Reader

15  Microcomputers  Decentralized processing  Flexible storage  Decentralized  Centralized on server  Sharing of resources through networks  LAN (Local Area Network)  WAN (Wide Area Network)  Wireless (WiFi)

16  Connecting to the Internet  Single computing device or LAN (Local Area Network)  Use routers to connect

17  Sharing resources  Storage  Printers  Scanners  Applications

18  Complete Chapter 1 Review Questions


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