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Chap. 1 & 2 - Overview, Apps Jan Smith Jan Smith Computer Concepts and Applications Spacebar =next slide Backspace = previous slide Esc =quit
Covering: Review of chapter 1 - Overview
Chapter 1 - Overview A computer is an electronic device that: a.operates under the control of memory unit b.accepts data c.processes data d.produces output e.stores the results for use later
b.accepts data c.processes data d.produces output e.stores the results for use later Chapter 1 - Overview Information Processing Cycle Input Processing Output Storage
Why is a computer powerful? Speed billions of actions per second Reliability failures usually human error Storage keeps huge amounts of data
Categories of Computers Personal or micro Mini Main Frame Super
Categories of Computers Workstations Desktop Tower Personal = micro Portable Types: Hand-heldPalmtop NotebookSub-notebook LaptopPen
Categories of Computers Servers (how its used more than what it is) Designed to support a computer network More powerful Larger memory Larger storage capacity High speed communications
Categories of Computers Minicomputers Originally for specific tasks, like engineering calculations Main frame Large systems for hundreds of users Requires special environment
Categories of Computers Supercomputers Most powerful category Used for weather forecasting, engineering design and testing, serious decryption Cost several million dollars
The Shapes of Computers Today lesson 2. This lesson includes the following sections: Supercomputers Mainframe Computers Minicomputers Workstations Microcomputers,
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Output devices Monitor or screen Text Numbers Symbols Art Photographs Video Printer Black and white Color Convert from electronic form to some other form.
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