Editing IBM System/360 (section)

==Component names==
IBM created a new naming system for the new components created for System/360, although well-known old names, like [[IBM 1403]] and [[IBM 1050|IBM 1052]], were retained. In this new naming system, components were given four-digit numbers starting with 2. The second digit described the type of component, as follows:
{| class="wikitable sortable mw-collapsible"
|+
|- style="vertical-align:top;" scope="row"
| style="padding-left: 2em" | 20xx: || Arithmetic processors, for example the [[IBM 2030]], which was the CPU for the [[IBM System/360 Model 30]].
|- style="vertical-align:top;" scope="row"
| style="padding-left: 2em" | 21xx: || Power supplies and other equipment intimately associated with processors, for example the [[IBM 2167 Configuration Unit]].
|- style="vertical-align:top;" scope="row"
| style="padding-left: 2em" | 22xx: || Visual output devices, for example the [[IBM 2250]] and [[IBM 2260]] CRT displays, and the [[IBM 2203]] line printer for the System/360 model 20.
|- style="vertical-align:top;" scope="row"
| style="padding-left: 2em" | 23xx: || Direct-access storage devices, for example the [[IBM 2311]] and [[IBM 2314]] disk drives, the [[IBM 2321 Data Cell]];<br />Main storage such as the [[IBM 2361 Large Capacity Storage]] (Core Storage, Large Core Storage or LCS) and the [[IBM 2365 Processor Storage]].
|- style="vertical-align:top;" scope="row"
| style="padding-left: 2em" | 24xx: || [[Magnetic tape drive]]s, for example the [[IBM 2401]], [[IBM 2405]] and [[IBM 2415]].
|- style="vertical-align:top;" scope="row"
| style="padding-left: 2em" | 25xx: || Punched card handling equipment, for example the [[IBM 2501]] ([[punched card|card reader]]), [[IBM 2520]] (card punch); [[IBM 2540]] (reader/punch) and [[IBM 2560]] (Multi-Function Card Machine or MFCM).
|- style="vertical-align:top;" scope="row"
| style="padding-left: 2em" | 26xx: || [[Paper tape]] handling equipment, for example the [[IBM 2671]] paper tape reader.
|- style="vertical-align:top;" scope="row"
| style="padding-left: 2em" | 27xx: || Communications equipment, for example the [[IBM 2701]], [[IBM 2705]], [[IBM 2741]] interactive terminal and the [[IBM 2780]] batch terminal.
|- style="vertical-align:top;" scope="row"
| style="padding-left: 2em" | 28xx: || Channels and controllers, for example the [[IBM 2821 Control Unit]], [[IBM 2841]] and [[IBM 2844]].
|- style="vertical-align:top;" scope="row"
| style="padding-left: 2em" | 29xx: || Miscellaneous devices, for example the [[IBM 2914 Data Channel Switch]] and the [[IBM 2944 Data Channel Repeater]].
|}