diff --git a/disks/pc/os2/misc/README.md b/disks/pc/os2/misc/README.md index 532124e0b..291fcfbff 100644 --- a/disks/pc/os2/misc/README.md +++ b/disks/pc/os2/misc/README.md @@ -16,8 +16,8 @@ For more details, see the "OS/2 1.0" [blog post](/blog/2014/12/04/). ### OS/2 FOOTBALL Boot Disk (v7.68.17) The [OS/2 FOOTBALL Boot Disk (v7.68.17)](/disks/pc/os2/misc/football/debugger/) contains a prototype version of OS/2 -from early 1987 that added preliminary support for the Intel 80386 processor, including limited support for 32-bit code -and the ability to run multiple DOS applications in V86-mode. It was forked from pre-OS/2 1.0 sources, and the only -machine it supported was the Compaq DeskPro 386-16. +from early 1987 that was designed to test new features of the Intel 80386 processor (eg, paging and V86-mode). +This prototype was forked from pre-1.0 OS/2 sources, and the only hardware it supported was the Compaq DeskPro 386-16. +It was never released outside of Microsoft and IBM. Return to [IBM PC Disk Archive](/disks/pc/#other-os2-disks). diff --git a/disks/pc/os2/misc/football/debugger/README.md b/disks/pc/os2/misc/football/debugger/README.md index 8d8eb20de..0cec92fe4 100644 --- a/disks/pc/os2/misc/football/debugger/README.md +++ b/disks/pc/os2/misc/football/debugger/README.md @@ -15,9 +15,20 @@ machines: OS/2 FOOTBALL Boot Disk (v7.68.17) --- -This disk contains a prototype version of OS/2 from early 1987 that added preliminary support for the Intel 80386 -processor, including limited support for 32-bit code and the ability to run multiple DOS applications in V86-mode. -It was forked from pre-OS/2 1.0 sources, and the only machine it supported was the Compaq DeskPro 386-16. +This disk contains a prototype version of OS/2 from early 1987 (code-named FOOTBALL) that was designed to test new +features of the Intel 80386 processor (eg, paging and V86-mode). Most of the work on this prototype occurred between +December 1, 1986 and February 28, 1987, with the principal goal of demonstrating multiple DOS applications running +in V86-mode to BillG (the demo probably occurred in March 1987), but also with the underlying goal of demonstrating +to IBM that Microsoft was ahead of the curve on 32-bit design considerations for OS/2. + +The FOOTBALL prototype was forked from pre-1.0 OS/2 sources, and the only hardware it supported was the Compaq DeskPro +386-16. The source code was later sent to IBM, and as of April 1987, they were adapting it to run on the Model 80 PS/2. +No versions of FOOTBALL were ever released outside of Microsoft and IBM. + +Although FOOTBALL contained features not found in OS/2 until version 2.0, there is no direct connection between this +internal Microsoft effort and OS/2 2.0. Some of the 32-bit support and paging work undoubtedly migrated to version 2.0 +eventually, but that would have happened much later, since work on OS/2 2.0 did not begin in earnest until October 1987, +after 1.0 was finished. A directory listing of this disk is provided [below](#directory-of-os2-football-boot-disk-v76817).