PC System Design Guide: Difference between revisions

Revision as of 23:17, 9 December 2007

Revision as of 16:39, 22 December 2007

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'''PC 99''' was a specification for [[IBM PC compatible|PC]]s jointly developed by [[Microsoft]] and [[Intel]] in 1998. Its aim was to encourage the [[standardization]] of PC hardware to aid [[Microsoft Windows|Windows]] [[compatibility]]. It set out minimum hardware specifications for various types of PC (e.g. office, entertainment) which were typical for the time (e.g. 300 MHz CPU with 64MB RAM on the entertainment PC). It strongly discouraged the use of non [[plug-and-play]] hardware (in particular [[Industry Standard Architecture|ISA]] slots) and mandated the use of [[Universal Serial Bus|USB]].

=== Color-coding Codesscheme for connectors and ports ===

The perhaps most end-user visible and lasting impact of PC 99 was that it setintroduced out thea [[color code]] for the various standard types of plugs and connectors used on PCs.<ref>[ftp://download.intel.com/design/pc98/pc99/Pc_99_1.pdf PC 99 System Design Guide], Intel Corporation and Microsoft Corporation, 14 July 1999. Chapter 3: PC 99 basic requirements ([http://download.microsoft.com/download/win2000pro/PCG/1.0/NT5/EN-US/pc99v1a.exe pc99_c03.doc in ZIP file]). Requirement 3.18.3: Systems use a color-coding scheme for connectors and ports.</ref> As many of the connectors look very similar, particularly to a novice PC user, this made it far easier for people to connect peripherals to the correct ports on a PC. This color code was gradually adopted by almost all PC, [[PC motherboard|motherboard]] and peripheral manufacturers.

{| class="wikitable"

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|-

! style="background-color: #f040a0;" | &nbsp;

! Burgundy

! Magenta

| [[Parallel port]]

| 25 pin D

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! style="background-color: orange;" | &nbsp;

! Orange

| center speaker andout / [[subwoofer]]

| [[S/PDIF]] digital audio output

| 3.5 mm [[TRS connector|TRS]]

|-

! style="background-color: gold;" | &nbsp;

! Gold

| center speaker and [[subwoofer]]

| 3.5 mm [[TRS connector|TRS]]

|-

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| 15-pin [[D-sub]]

|}

==References==

<references/>

==External links==