check bit
- noun
- Specialized
- The data transmission was successful because the check bit confirmed the correct parity of the message.
Examples
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The ECC word contains 32 data bits, seven check bits, and one spare bit.
Academic text (1994) -
The CP stores data with the appropriate ECC check bits already supplied.
Academic text (1997) -
Now those codes with the check bit, they help a lot in helping to detect whether an error has occurred.
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It's the the elements of the syndrome are the north minus K individual bits, parity check bits, OK.
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The DCU steers the spare bit into any data or check bit position within the ECC word during transfers to memory or from memory.
Academic text (1994) -
In addition to the correction of defective data, the DRAM address has been included in the check-bit generation in order to detect misaddressing.
Academic text (1997) -
To ensure accuracy in data storage, each byte is accompanied by a check bit that helps identify any errors.
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Engineers use a check bit to detect errors during the transfer of digital information between devices.
Synonyms
A small extra binary digit added so the total number of 1s is even or odd to find errors
Surface Forms
Morphology
The meaning 'a bit added to detect errors' is directly derivable from combining 'check' (to verify or test) with 'bit' (a binary information unit): it denotes a bit used for checking. This is a straightforward technical compound following normal English composition patterns, so a B1 learner who knows both constituents would readily infer the function of a 'check bit'.
Etymology
Check bit comes from the simple idea of adding one small extra bit that checks a group of bits by making the total number of 1s 'even', so a mistake will stand out. That's why a check bit helps find errors in data.