Disk II: Revision history

23 September 2026

• curprev 02:2102:21, 23 September 2026 Josh talk contribs 9,961 bytes +3,191 Rewrite against Apple's own Disk II manual (now hosted here) and Weyhrich's Apple II History: corrected release to July 1978 and price to $495 pre-order / $595 retail; corrected the mechanism origin (Shugart SA390 supplied without read/write electronics, head load solenoid, track zero or index sensors - not a modified SA400); corrected chip count (about 40 down to 9, then 8 - not one-tenth); deleted unsourced approximations (dimensions, weight, ~15 KB/s transfer rate, 1985 discontinuation, 14... undo

9 February 2026

• curprev 13:1813:18, 9 February 2026 Josh talk contribs 6,770 bytes +9 Fix image syntax to File:... undo
• curprev 13:1513:15, 9 February 2026 Josh talk contribs 6,761 bytes +11 Add infobox image undo
• curprev 13:0313:03, 9 February 2026 Josh talk contribs 6,750 bytes −70 Fix category to Apple Vintage Accessories undo
• curprev 13:0213:02, 9 February 2026 Josh talk contribs 6,820 bytes +10 Fix infobox template name undo
• curprev 12:5612:56, 9 February 2026 Josh talk contribs 6,810 bytes +6,810 Created accessory article