Parity is:
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a byte stored in the FAT to indicated remaining slots
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the optimal transmission speed of data over a CAT 5 cable
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a system for balancing the voltage coming out of the power supply
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an extra bit stored with data in RAM that is used to check for errors when the data is read back
Reveal answer
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Correct answer
Explanation
Parity is an error-checking system where an extra bit is stored with each byte of data in RAM. This bit is set so that the total number of 1s in the byte (including parity) is always even or odd. When data is read back, the parity bit is recalculated - if it doesn't match, an error is detected.