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| physical components of a computer system |
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| a program, usually for special purpose computers that cannot be altered |
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| can be data (numbers), instructions (binary rep of numbers) eight bits=character, known as bytes |
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| American Standard Code for Information Interchange, 256 characters |
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| 16 bits as a combination to represent different languages |
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| 1 trillions bytes of info |
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| 1 quadrillion bytes on info |
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| arithmetic logic unit, performs mathematical and logical operations, registers that hold data and instructions found here |
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| control unit, performs basic control operations |
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| random access memory, volatile |
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| holds instructions and data for quick access |
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