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A computer word is NOT 4 bits.

In computing terms the base unit is a "bit" which can be set to "0" or "1"

Then a group of 4 bits is called a "nibble"

2 nibbles or 8 bits is called a "bite"

next comes a computer "word" which can be 16, 32 or 64 bits, depending on the width of the computer's registers.

A parity bit is used as the simplest form of error detecting code, a parity bit, or check bit, is a bit ADDED to any string of binary code to ensure that the total number of 1-bits in the string is even or odd.

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Q: How is a parity bit added to a four bit word?
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How is simple parity check related to the two dimensional parity check?

The single parity check uses one redundant bit for the whole data unit. In a two dimensional parity check, original data bits are organized in a table of rows and columns. The parity bit is then calculated for each column and each row.


What is called if the number of bits is not an odd number for odd parity or an even number for even parity?

That's called a "parity violation", which indicates a bit error in the byte. That's the whole purpose of parity ... detecting bit errors, although in order to do it, you have to significantly increase the data load by adding an extra bit to every 7 or 8 bits in the end-user's business traffic.


Why parity bit is used?

Parity bits are mainly meant for error detection in serial communication.It will be use full for determining the correctness of data sent from transmitter to receiver.even parity A wants to transmit: 1001 A computes parity bit value: 1^0^0^1 = 0 A adds parity bit and sends: 10010 B receives: 10010 B computes parity: 1^0^0^1^0 = 0 B reports correct transmission after observing expected even result.odd ParityA wants to transmit: 1001 A computes parity bit value: ~(1^0^0^1) = 1 A adds parity bit and sends: 10011 B receives: 10011 B computes overall parity: 1^0^0^1^1 = 1 B reports correct transmission after observing expected odd result.Transmission error detection on even parityA wants to transmit: 1001 A computes parity bit value: 1^0^0^1 = 0 A adds parity bit and sends: 10010 *** TRANSMISSION ERROR *** B receives: 11010 B computes overall parity: 1^1^0^1^0 = 1 B reports incorrect transmission after observing unexpected odd result.Transmission error detection on odd parityA wants to transmit: 1001 A computes even parity value: 1^0^0^1 = 0 A sends: 10010 *** TRANSMISSION ERROR *** B receives: 10011 B computes overall parity: 1^0^0^1^1 = 1 B reports incorrect transmission after observing unexpected odd result.Refference:Wikipedia


When adding an even parity bit to the code 110010 the result is?

1110010


What is the past tense word for bit?

'Bit' is the simple past tense of bite.