Parity - Revision history

Larsbrinkhoff: No error correction.

2026-11-02T11:06:27Z

No error correction.

← Older revision		Revision as of 11:06, 2 November 2026
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	'''Parity''' is a very early error-detectiion system (now mostly replaced by [[Cyclic redundancy check\|CRCs]]). It can detect all one-bit errors, but only about half of all two-bit errors.		'''Parity''' is a very early error-detectiion system (now mostly replaced by [[Cyclic redundancy check\|CRCs]]). It can detect all one-bit errors, but only about half of all two-bit errors. It can not correct errors.

	It consists of one extra [[bit]] per [[byte]]/[[word]]. On storage or transmission, the parity bit is set so that the total number of 'on' bits across the entire group is either even (so-called 'even parity') or odd ('odd parity'). When the data is read back or received, the parity is checked, to make sure that it is what is expected.		It consists of one extra [[bit]] per [[byte]]/[[word]]. On storage or transmission, the parity bit is set so that the total number of 'on' bits across the entire group is either even (so-called 'even parity') or odd ('odd parity'). When the data is read back or received, the parity is checked, to make sure that it is what is expected.

Jnc: +See also

2020-12-06T14:31:46Z

+See also

← Older revision		Revision as of 14:31, 6 December 2020
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	It consists of one extra [[bit]] per [[byte]]/[[word]]. On storage or transmission, the parity bit is set so that the total number of 'on' bits across the entire group is either even (so-called 'even parity') or odd ('odd parity'). When the data is read back or received, the parity is checked, to make sure that it is what is expected.		It consists of one extra [[bit]] per [[byte]]/[[word]]. On storage or transmission, the parity bit is set so that the total number of 'on' bits across the entire group is either even (so-called 'even parity') or odd ('odd parity'). When the data is read back or received, the parity is checked, to make sure that it is what is expected.

			==See also==

			* [[UNIBUS parity]]

	{{semi-stub}}		{{semi-stub}}

	[[Category: Computer Basics]]		[[Category: Computer Basics]]

Jnc: +cat

2018-12-16T16:46:34Z

+cat

← Older revision		Revision as of 16:46, 16 December 2018
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			[[Category: Computer Basics]]

Jnc: Proper cat

2018-10-20T02:23:52Z

Proper cat

← Older revision		Revision as of 02:23, 20 October 2018
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	It consists of one extra [[bit]] per [[byte]]/[[word]]. On storage or transmission, the parity bit is set so that the total number of 'on' bits across the entire group is either even (so-called 'even parity') or odd ('odd parity'). When the data is read back or received, the parity is checked, to make sure that it is what is expected.		It consists of one extra [[bit]] per [[byte]]/[[word]]. On storage or transmission, the parity bit is set so that the total number of 'on' bits across the entire group is either even (so-called 'even parity') or odd ('odd parity'). When the data is read back or received, the parity is checked, to make sure that it is what is expected.

	{{stub}}		{{semi-stub}}

Jnc: A start

2018-04-14T23:09:54Z

A start

New page

'''Parity''' is a very early error-detectiion system (now mostly replaced by [[Cyclic redundancy check|CRCs]]). It can detect all one-bit errors, but only about half of all two-bit errors.

It consists of one extra [[bit]] per [[byte]]/[[word]]. On storage or transmission, the parity bit is set so that the total number of 'on' bits across the entire group is either even (so-called 'even parity') or odd ('odd parity'). When the data is read back or received, the parity is checked, to make sure that it is what is expected.

{{stub}}