Field-replaceable unit: Difference between revisions

Revision as of 11:02, 28 February 2023

Latest revision as of 09:37, 20 March 2025

(One intermediate revision by the same user not shown)

Line 7:

==History==

Many [[vacuum tube]] computers had FRUs:

* Pluggable units containing one or more [[vacuum tube]]s and various [[passive component]]s

Most [[transistor]]ized and [[integrated circuit]]-based computers had FRUs:

* [[Computer module]]s, circuit boards containing discrete transistors and various passive components. Examples:

** [[IBM Standard Modular System|IBM SMS cards]]

** [[System Building Blocks|DEC System Building Blocks]] cards

** [[Flip -Chip (PDP module)|DEC Flip-Chip]] cards

* Circuit boards containing monolithic ICs and/or [[hybrid integrated circuit|hybrid ICs]], such as [[IBM Solid Logic Technology|IBM SLT cards]].

Vacuum tubes themselves are usually FRUs.

Line 21:

==Trends==

As the sophistication and complexity of multi-replaceable unit electronics in both commercial and consumer industries have increased, many design and manufacturing organizations have expanded the use of the FRU storage device.{{definition needed|date=August 2019}}. Storage is no longer limited to simply identification of the FRU itself, but now also comprises back-up copies of critical system information such as system serial numbers, MAC address and even security information. Some systems will fail to function at all without each FRU in the system being ratified at start-up. Today one cannot assume that the FRU storage device is only used to maintain the FRU ID of the part.

==See also==