Octet: Difference between revisions

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Fairly complete
 
More NCP fixups, minor clarifications while I'm here
 
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An '''octet''' is an 8-[[bit]] unit of data. Although the term [[byte]] is now basically a synonym, a separate term was needed in the early days of work on the [[TCP/IP]] [[protocol suite]], because in the earlier [[Network Control Program|NCP]] protocol suite of the [[ARPANET]], 'bytes' of variable length were supported. (That was as a result of the prevalence of machines such as [[PDP-10]], whose [[instruction set architecture|ISA]] directly supported variable-length bytes.)
An '''octet''' is an 8-[[bit]] unit of data. Although the term [[byte]] is now basically a synonym, a separate term was needed in the early days of work on the [[TCP/IP]] [[protocol suite]], because in the earlier [[Network Control Protocol|NCP]] protocol suite of the [[ARPANET]], 'bytes' of variable length were supported. (That was as a result of the prevalence of machines such as [[PDP-10]], a 36-bit [[word]] machine whose [[instruction set architecture|ISA]] directly supported variable-length bytes.)


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

Latest revision as of 13:10, 29 June 2022

An octet is an 8-bit unit of data. Although the term byte is now basically a synonym, a separate term was needed in the early days of work on the TCP/IP protocol suite, because in the earlier NCP protocol suite of the ARPANET, 'bytes' of variable length were supported. (That was as a result of the prevalence of machines such as PDP-10, a 36-bit word machine whose ISA directly supported variable-length bytes.)