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20 Cards in this Set

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Definition of Information Technology (IT)
Technology that helps in production, processing, storing, communicating,and dissemination of information.
Defintion of Computers
programable multi-use machines that convert data into info.
Network
Communications system connecting 2 or more comuters
World Wide Web
Most common use of internet. Encompasses information that can be viewed through a web browser (Web pages).
Internet
network of networks (tangable)
Supercomputer
Fastest!!! Real expensive!!! Looks life a fridge!!Thousands of processors, trillions of calustions per second. Used for computer simulations (ex. check weather)
Mainframe (aka. mid-size computer)
used in large organizations. (ex.airplane terminal)
workstaion
used for complex science, math, and engineering calculatioins for computer aided design. (ex.airplanes, special effects)
Types of Microcomputer(PC and MAC)
Tower, desktop, Laptop/notebook, personal digital assistants(PDA)
Microcontrolers
tiny specialized microprocessor instaled in "smart" appliances and automobiles. aka. embedded computers
Client
PCs workstations and other devices attatched to a server
Server
A central computer that hold collections of data and programs for clients
Data
"Input" The raw facts and figures that are proccesed into info.
Types of Input
Mouse and keyboard
Information
"Output" Data that has been summarized or otherwise manipulated for use and decision making
Output
monitor, speakers, printer
5 basic operations of a computer
1.) Input
2.) Processing
3.) Storage
4.) Output
5.) Communcations
Hardware
all the machinery and equipment in a computer system. TANGABLE!!!
Software
All instructions that tell the computer how to perform a task. INTANGABLE!!!
Case (system cabinet)
Box that houses
~Processor chip (Central Processing Unit)
~Memory Chips
~Motherboard w/ power supply
~Secondary Storage devices