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14 Cards in this Set
- Front
- Back
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analog
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Data that is processed in continuous wave patterns.
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binary system
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Number system used by computers that has just two unique digits, 0 and 1, called bits.
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bit
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The smallest unit of data a computer can process. Bit is short for binary digit.
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bus
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Electrical channel that transfers electronic bits internally within the circuitry of a computer, allowing the devices inside the system unit and the devices attached to the system unit to communicate with each other.
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byte
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Eight bits that are grouped together as a unit. A byte provides enough different combinations of 0's and 1's to represent 256 individual characters.
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cache
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Area of memory that stores teh contents of frequently accessed data or instructions.
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gigabyte (GB)
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Approximately 1 billion bytes.
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gigahertz (GHz)
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1 billion ticks of the system clock per second.
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kilobyte
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Exactly 1,024 bytes.
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megabyte
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Approximately 1 million bytes.
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read only memory (R0M)
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Type of memory that is used to store permanent data and instructions because it is nonvolatile memory.
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system clock
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Small quartz crystal circuit that is used by the processor to control the timing of all computer operations.
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random access memory (RAM)
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Type of memory that can be read from and written to by the processor and other devices.
Programs and data are loaded into RAM from storage devices, such as a hard disk and remain in RAM as long as the computer has continuous power. |
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processor
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Electronic component on a computer's motherboard that interprets and carries out the basic instructions that operate the computer. Also called CPU or central processing unit.
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