Sunday, October 16, 2005

Nibble or Nybble?

A reader has suggested that the correct spelling for "Nibble" (in a computer science context) should be "Nybble". The truth is that both spellings are correct, although "nibble" is probably the most common. According to a Wikipedia entry on the subject,
The term nibble originates from the fact that the term byte is a pun on the English word bite. A nibble is a small bite, or half a bite. The nybble spelling parallels the spelling of byte.

Many references suggest that both "nibble" and "nybble" represent 4 bits or half a bite. Others maintain that 1 nybble represents 8 nibbles in the same way that 1 byte represents 8 bits.

2 comments:

Lets said...

I have always heard that a nybble (or nibble) is half a byte. My comp. sci. instructor said it was 2 bytes however.

Lincoln-nerd said...

You're right, your instructor is WRONG.
A nybble is 4 bits, there are 2 nybbles in a byte. In the olden days of computers, two bytes were called a word.
Good Job