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OS/2 SIZZLE Boot Disk (v7.68.18)

This disk contained a pre-1.0 version of OS/2 built on January 7, 1987, which was based on an interim source code fork known as SIZZLE, the code-name for a collection of changes intended to improve overall OS/2 performance.

Work on SIZZLE started around November 1986, and an internal specification known as “The London Performance Spec” drove some of that work, but at this point, not much is known about either the contents of that specification or any of the SIZZLE changes.

When this disk boots, the following version banner is displayed:

CP-DOS version 1.0
Copyright 1986 IBM Corp.

SIZZLE Internal revision 7.68.18, 86/12/12

A directory listing of this disk is provided below.

OS/2 SIZZLE Boot Disk (v7.68.18 DEBUG)

A second disk contained a DEBUG pre-1.0 version of OS/2 built on January 7, 1987, and it is largely identical to the OS/2 SIZZLE Boot Disk (v7.68.18), with the exception of a debug kernel (with built-in debugger) and a different assortment of tools. A directory listing of the second disk is provided below.

[PCjs Machine "ibm5170"]

Waiting for machine "ibm5170" to load....

Directory of OS/2 SIZZLE (v7.68.18)

 Volume in drive A has no label
 Directory of A:\

IBMBIO   COM     49408   1-07-87  12:18p
IBMDOS   COM    172881   1-07-87  11:45a
OSO001   MSG     40730   1-07-87   1:41p
CMD      EXE     47056  10-22-86   7:41p
COMMAND  COM     23724  10-22-86   7:41p
COUNTRY  SYS      6175  10-22-86   7:57p
MSG      EXE      5824  10-22-86   7:58p
NLS      EXE      3124  10-23-86   8:38a
SWAPPER  EXE      4150  10-22-86   8:04p
ANSICALL EXE      3165   1-07-87  12:19p
BKSCALLS EXE      3611   1-07-87  12:21p
BMSCALLS EXE      2064   1-07-87  12:23p
BVSCALLS EXE     11710   1-07-87  12:30p
DOSCALL1 EXE      7071   1-07-87  12:33p
KBDCALLS EXE      4138   1-07-87  12:34p
MONCALLS EXE      5655   1-07-87  12:35p
MOUCALLS EXE      5177   1-07-87  12:36p
QUECALLS EXE     11508   1-07-87   1:03p
SESMGR   EXE     25744   1-07-87   1:41p
SHELL    EXE      4096   1-07-87   1:43p
VIOCALLS EXE      9833   1-07-87   1:10p
COM      SYS     12342  10-22-86  10:11p
COM      MSG       144  10-22-86  10:39a
EXTDSKDD EXE      1885  10-22-86   7:31p
MOUSE00  SYS     12342  10-22-86   7:31p
MOUSE01  SYS     12342  10-22-86   7:32p
MOUSE02  SYS     12342  10-22-86   7:32p
MOUSE03  SYS     12854  10-22-86   7:31p
POINTDD  SYS      4240  10-22-86   7:32p
VDISK    SYS      4662  10-22-86   7:33p
OSO001H  MSG     82177   1-07-87   1:40p
IBMBIO   MAP     14290   1-07-87  12:18p
IBMDOS   MAP     75444   1-07-87  11:45a
CONFIG   SYS       138   1-05-87   3:42p
DOS3TOOL     <DIR>       1-07-87   2:21p
TEMP     BAT        13   1-10-87   4:41p
       36 file(s)     692059 bytes

 Directory of A:\DOS3TOOL

.            <DIR>       1-07-87   2:21p
..           <DIR>       1-07-87   2:21p
MSC      EXE     29428   2-10-86  10:12a
CL       EXE     27655  12-07-86   3:49p
P1       EXE    130969  12-07-86   3:49p
P2       EXE    116077  12-07-86   3:49p
P3       EXE    115357  12-07-86   3:49p
        7 file(s)     419486 bytes

Total files listed:
       43 file(s)    1111545 bytes
                       88576 bytes free

Directory of OS/2 SIZZLE (v7.68.18 DEBUG)

 Volume in drive A has no label
 Directory of A:\

IBMBIO   COM     53056   1-07-87   2:41p
IBMDOS   COM    202569   1-07-87   2:39p
OSO001   MSG     40730   1-07-87   1:41p
CMD      EXE     47056  10-22-86   7:41p
COMMAND  COM     23724  10-22-86   7:41p
COUNTRY  SYS      6175  10-22-86   7:57p
MSG      EXE      5824  10-22-86   7:58p
NLS      EXE      3124  10-23-86   8:38a
SWAPPER  EXE      4150  10-22-86   8:04p
ANSICALL EXE      3165   1-07-87  12:19p
BKSCALLS EXE      3611   1-07-87  12:21p
BMSCALLS EXE      2064   1-07-87  12:23p
BVSCALLS EXE     11710   1-07-87  12:30p
DOSCALL1 EXE      7071   1-07-87  12:33p
KBDCALLS EXE      4138   1-07-87  12:34p
MONCALLS EXE      5655   1-07-87  12:35p
MOUCALLS EXE      5177   1-07-87  12:36p
QUECALLS EXE     11508   1-07-87   1:03p
SESMGR   EXE     25744   1-07-87   1:41p
SHELL    EXE      4096   1-07-87   1:43p
VIOCALLS EXE      9833   1-07-87   1:10p
COM      SYS     12342  10-22-86  10:11p
COM      MSG       144  10-22-86  10:39a
EXTDSKDD EXE      1885  10-22-86   7:31p
MOUSE00  SYS     12342  10-22-86   7:31p
MOUSE01  SYS     12342  10-22-86   7:32p
MOUSE02  SYS     12342  10-22-86   7:32p
MOUSE03  SYS     12854  10-22-86   7:31p
POINTDD  SYS      4240  10-22-86   7:32p
VDISK    SYS      4662  10-22-86   7:33p
OSO001H  MSG     82177   1-07-87   1:40p
IBMBIO   MAP     14557   1-07-87   2:41p
IBMDOS   MAP     83303   1-07-87   2:39p
CONFIG   SYS       138   1-05-87   3:42p
DOS3TOOL     <DIR>       1-07-87   2:49p
       35 file(s)     733508 bytes

 Directory of A:\DOS3TOOL

.            <DIR>       1-07-87   2:49p
..           <DIR>       1-07-87   2:49p
MASM     EXE     95369  12-07-86   3:50p
LINK4    EXE     75544  10-22-86   7:55p
MAKE     EXE     49120   7-02-86   3:49p
TRESP    EXE     14133   8-01-86  10:57a
LIB      EXE     29359   6-27-86   4:00a
LINK     EXE     47547   6-27-86   4:00a
IMPLIB   EXE     23396  10-22-86   7:57p
SED      EXE     19882   1-15-85   4:47p
RELOC    EXE     15635   5-14-86  12:00p
MKMSGF   EXE     14830   9-10-86   1:07p
MSGBIND  EXE     12966   7-18-86  11:47a
MSGSPLIT EXE     11188   9-19-86   7:58a
SYMDEB   EXE     37021  10-16-85   4:00a
BOOT     BAT       169   1-07-87   2:43p
       16 file(s)     446159 bytes

Total files listed:
       51 file(s)    1179667 bytes
                       19456 bytes free