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Computer - Ref Model


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Computer - Ref Model


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Slavomir Stankov


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Computer is a ...
[Back]


Programmable electronic device

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Computer is a ...
Programmable electronic device
Storage media
Compoact disc (CD),
Storage media
Compact disc (CD), Digital Versatile Disk (DVD)
Computer
Accepts input; performs processing operations; outputs the results; and provides storage for data, programs, or output when needed
Most computers today also have ...
Communications capabilities
Information processing cycle
Progression of input, processing, output, and storage
Data is ...
The raw, unorganized facts that are input into the computer to be processed
Information
Data that the computer has processed into a useful form
Data can exist in many forms
Representing text, graphics, audio, and video
Abacus
One of the first calculating devices
Early computing devices that predate today’s computers
The slide rule, the mechanical calculator, and Dr. Herman Hollerith’s Punch Card Tabulating Machine and Sorter.
First-generation computers
Powered by vacuum tubes
Computers people are ..
Programmers and computer users
Computer users
Perform tasks or obtain information
Third-generation computers
Used integrated circuit (IC)
Fourth-generation computers
Use microprocessors and are frequently connected to the Internet and other networks
Specific tasks or applications
Word processing, Web browsing, photo touch-up, and so on
Fifth-generation computers
Based on artificial intelligence
A computer is made up of ...
Hardware and software
Hardware
The actual physical equipment that makes up the computer system
Software
The computer's programs
Common hardware components include
Input devices, a processing device, output devices, storage devices and storage media, and communications device
Windows desktop
The basic workspace for Windows’
Input devices
The keyboard and mouse
The operating system allows
The boot process and controls operation of the computer
A processing device
Central processing unit
Output devices
Monitor/display, screens and printers
Storage devices
Hard drives, CDs and DVD drives, USB flash drives, and flash memory cards
Most software programs today use a ...
Variety of graphical objects that are selected to tell the computer what to do
Controls operation of the computer
Allow users to run other types of software and to manage their files
The boot process
Starting a computer
Type of communications devices
Modem, network adapter
A communication devices to allow users to ...
Connect to the internet or other network
Application software
Consists of programs designed to allow people to perform specific tasks or applications
Storage media
Compact disc (CD), Digital Versatile Disk (DVD)
A software is made up of ...
System software and application software
All computers need ...
System software
Programmers
Write programs
Examples of operating systems
Windows, Mac OS, Linux
A software computer is made up of ...
System software and application software
A software is made up of ...
System software and application software
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