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Introduction to Computer Hardware


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Information System is...
... an organized system that collects, processes, stores, analyzes, and disseminates information for a specific purpose.
Information Systems managers
operate the systems used for gathering, organizing, and distributing information
Information Technology
a field concerned with the use of technology in managing and processing information
Hardware
All of the physical devices that collectively constitute the item we think of as a desktop or a laptop computer
Software
a collection of computer programs that tell the computer how to perform a particular task
input, output, processing, storage
the four main functions of a computer system
Binary number system
a numbering system that uses only 1's and 0's
bit
A binary number 0 or 1
Byte
2^3 bits=
Nibble
4 bits=
crumb
two bits
CPU
acronym for central processing unit, where all the PCs calculations take place
processor, microprocessor
two other names for CPU
chassis
the housing for the computer components, the case
components
parts that together make up something else
port
a connection point on the chassis that connects something outside a computer case to the inside
keyboard
device consisting of a set of keys on a typewriter or typesetting machine or computer used to input data
Mouse
A physical device for navigating a GUI
Monitor
Computer screen
printer
a device that provides hard copy output for a computer system
hard copy
paper with words or graphics on it that comes out of a printer