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Languages

Languages   There are thousands of different programming languages—some intended to be general purpose, others useful only for highly spec...

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Software

Software   Main article: Computer software Software refers to parts of the computer which do not have a material form, such as programs, ...

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Hardware

Hardware   See also: History of computing hardware The term hardware covers all of those parts of a computer that are tangible objects. C...

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Computer architecture paradigms

Computer architecture paradigms   There are many types of computer architectures : Quantum computer vs Chemical computer Scalar processo...

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Networking and the Internet

Networking and the Internet   Main articles: Computer networking and Internet Visualization of a portion of the routes on the Internet...

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Multiprocessing

Multiprocessing   Main article: Multiprocessing Cray designed many supercomputers that used multiprocessing heavily. Some computers are...

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Multitasking

Multitasking   Main article: Computer multitasking While a computer may be viewed as running one gigantic program stored in its main memor...

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Input/output (I/O)

Input/output (I/O)   Main article: Input/output Hard disk drives are common storage devices used with computers. I/O is the means by w...

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Memory

Memory   Main article: Computer data storage Magnetic core memory was the computer memory of choice throughout the 1960s, until it was...

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Arithmetic logic unit (ALU)

Arithmetic logic unit (ALU) Main article: Arithmetic logic unit The ALU is capable of performing two classes of operations: arithmetic and ...

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Control unit

Control unit   Main articles: CPU design and Control unit Diagram showing how a particular MIPS architecture instruction would be deco...

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Components

Components   Main articles: Central processing unit and Microprocessor A general purpose computer has four main components: the arithmeti...

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Programming language

Programming language Main article: Programming language Programming languages provide various ways of specifying programs for computers to r...

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Machine code

Machine code In most computers, individual instructions are stored as machine code with each instruction being given a unique number (its ...

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Bugs

Bugs Main article: software bug The actual first computer bug, a moth found trapped on a relay of the Harvard Mark II computer Errors in...

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Stored program architecture

Stored program architecture Main articles: Computer program and Computer programming A 1970s punched card containing one line from a F...

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Programs

Programs The defining feature of modern computers which distinguishes them from all other machines is that they can be programmed . That is...

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Semiconductors and microprocessors

Semiconductors and microprocessors Die of an Intel 80486DX2 microprocessor (actual size: 12×6.75 mm) in its packaging.   Computers us...

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