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Types of Computers

Basics of what a computer does, different types of computers
by

Chelsi Nielsen

on 17 February 2016

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Transcript of Types of Computers

Types of Computers
Key Words: Stored Instructions
Computer
A device that accepts input, processes data, uses memory, provides storage and produces output, all according to a series of stored instructions.
Accepts Input
Input = Letters, numbers, symbols entered into a computer for processing
Key Word: Entered
Processes Data
Data = The way letters, numbers and symbols represent facts, objects or ideas
Key Words: Represent facts
Information = Results of the computer receiving and storing data.
Key Words: Results
Processing = Manipulation or changing of the data in many ways
Key Word: Manipulation
Uses Memory
Memory = Area of the computer that temporarily holds data waiting to be processed, stored, or output
Key Word: Temporary
Provides Storage
Storage = Area of the computer that holds data on a permanent basis when it is not immediately needed for processing.
Key Words: Permanent
Produces Output
Output = The processing results, seen on a monitor or printed on paper.
Key Words: Processing Results
Hardware
Mechanical, Magnetic, and electrical components making up a computer system
Anything on or in the computer that is touchable
Key Word: Touchable
Software
A computer program that tells the computer how to perform a particular task.
Key Word: Program
Peripheral Devices
Used to expand the computer's input, output, and storage capabilities.
Key Word: Expand
Examples: Monitor, Keyboard, Mouse, and Printer
Computers are made up of:
Microcomputer
A personal computer; designed to meet the needs of an individual.
Key Word: Personal Computer
Provides a wide variety of applications, such as word processing, e-mail, internet, spreadsheets, and slide shows.
Has seperate components (peripheral devices) that are plugged into the computer.
Laptop
Portable, compact microcomputer that can run on electricity or battery power
Key Word: Portable
All Components (keyboard, mouse, etc.) are housed in one unit.
Usually more expensive than a comparable desktop.
Workstation
Powerful desktop designed for specialized tasks
Examples: 3D Modeling, Engineering
ALSO: A personal computer attached to a network.
Supercomputer
Fastest in the world at the time it was constructed
How long will this computer be the fastest?
Can tackle tasks that would not be practical for other computers, such as
code breaking
.
Key word: Fastest
Mainframe
Very large, expensive computer that can process or store date for thousands of users at the same time.
Key words: Very Large
Usually housed in a closet sized cabinet
Used by big businesses to store, manage, and process large amounts of data that need to be reliable, secure and centralized.
File Server
A computer that supplies users with data; through the use of a network.
Key Word: Supplying
Network
2 or more computers and other devices (printers, scanners...) that are connected, for the purpose of sharing data and programs.
Key Words: Sharing Data
Handheld
A computer that fits into a pocket, runs on batteries, and is used while holding the unit in your hand
Key Word: Pocket
Used as an appointment book, address book, calculator, and notepad.
Needs to be synchronized (sync'd) witha microcomputer as a backup.
Digital Tablets convert the informtion written onto the screen into typed text
Resources
"Dictionary.com." 2006. Lexico Publishing Group, LLC.
1 Nov, 2006 <http://www.dictionary.com>
Parsons, June Jamrich, and Dan Oja. Computer Concepts. Boston: Course Technology - Thompson Learning, 2002.
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