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22 Cards in this Set
- Front
- Back
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Bit |
A binary digit (0 or1) |
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Nibble |
4 bits |
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Byte |
8 bytes |
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Kilobyte |
1024 bytes |
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Megabyte |
1024 kilobytes |
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Gigabyte |
1024 megabytes |
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Terabyte |
1024 gigabytes |
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Character set |
The group of all characters that can be accurately represented by the computer. |
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Binary character code |
binary code for each character, so that it can be recoginised by the computer |
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Image height |
How many picture elements (pixels) high theimage is |
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Image width |
How many pictureelements (pixels) wide the image is |
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Colour depth |
The number ofcolours needed to accurately represent the image. |
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Resolution |
How densely picture elements (pixels) are concentrated. |
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Clipping |
Sound exceeding the maximum amplitude. |
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Sampling frequency |
How often samplesare taken from the sound. |
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Sampling depth |
How many amplitudes that can be stored |
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Opcode |
Code that specifiesinstructions that can executed by a CPU in machine code. |
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Operand |
Data that ismanipulated by opcodes in a CPU machine code accumulator. |
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The difference between data and instructions |
The computer cannot recognise the difference between data and instructions and uses what it receives like what it was expecting (John von Neumann). |
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Machine code |
Binary code that the computer can recognise |
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The need for binary |
The computer can only understand on off signals, so all code needs to be converted to binary for the computer to store it |
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Overflow |
When a number becomes too large to fit into the number of bits allocated so some bits are 'lost' leaving an incorrect value or error |
