Mark's Ohio Scientific/Compukit UK101 Archive

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These disk images have been collected from 30+ year old floppies and may contain errors. They retain the copyrights of their various owners.

C1P Disk Images

OS 65D Description
C1-OS65D.65d OS65D V3.0 for C1P 5.25" floppy
C1P-OS65D_3.1.65D OS65D V3.1 for C1P 5.25" floppy
C1P-OS65D_3.3_Tutorial1.65D OS65D V3.3 for C1P 5.25" floppy Tutorial disk 1

OS-65D Tutorial disk one
   September 16, 1981

  1> Space war
  2> Hangman
  3> Biorhythm
  4> Torpedo
  5> Breakout
  6> Loan Interest
C1P-OS65D_3.3_Tutorial2.65D OS65D V3.3 for C1P 5.25" floppy Tutorial disk 2
C1P-OS65D_3.3_Tutorial3.65D OS65D V3.3 for C1P 5.25" floppy Tutorial disk 3
C1P-OS65D_3.3_Tutorial4.65D OS65D V3.3 for C1P 5.25" floppy Tutorial disk 4
C1P-OS65D_3.3_Tutorial5.65D OS65D V3.3 for C1P 5.25" floppy Tutorial disk 5

OS-65D Version 3.3 BASIC Executive
 1 > Directory
 2 > Create a new file
 3 > Change a file name
 4 > Delete file from diskette
 5 > Create blank data diskette
 6 > Create data diskette with files
 7 > Create buffer space for data files
 8 > Single or dual disk drive copier
 9 > Enter OS-65D system
C1P-OS65D3.3+Overlay.65D C1P-OS65D3.3 + Overlay
C1P-VIDSwap.65D C1P-VIDSwap.65D
Patches OS for 64x16 video & back

Misc Description
C1P-PICO_DOS.65D Pico DOS for C1P 5.25" floppy
C1-ep142a.65D

*courtesy bxdanny
Updated 9/17/2024
Enhanced Pico-Dos v1.42a for C1P & C2/C4 with Cegmon ROM installed 5.25" floppy
See Enhanced Pico-Dos changes

Forth Description
C1P-S-Forth.65D S-Forth for C1P 5.25" floppy
C1P-Z-Forth.65D Z-Forth for C1P 5.25" floppy
C1P-FIG-Forth.65D Fig-Forth for C1P 5.25" floppy
C1P-FIG-Forth+Utils.65D Fig-Forth + utilities for C1P 5.25" floppy

C4P Disk Images

OS 65D Description
OS65Dv32-C4&C1.65d OS65D V3.2 for C4P/ boots on C1P 5.25" floppy
C4P-DOS3-2.65D

*Fixed 12/5/2023
OS65D V3.2 for C4P 5.25" floppy

BASIC EXECUTIVE FOR OS-65D V3.2 (NMHz)
APRIL 21, 1980 RELEASE

FUNCTIONS AVAILABLE:

   COLORS - TEST PATTERN TO ADJUST COLOR MONITORS
   CHANGE - ALTER WORKSPACE LIMITS
   DIR    - PRINT DIRECTORY
   UNLOCK - UNLOCK SYSTEM FROM END USER MODIFICATIONS

FUNCTION? _
C4P-OS65D_3.3_Tutorial1.65d OS65D V3.3 Tutorial Disk 1 for C4P 5.25" floppy

OS-65D Tutorial disk one
September 16, 1981
 1> Space War
 2> Hangman
 3> Biorhythm
 4> Torpedo
 5> Breakout
 6> Loan Interest Calculation
 7> Life
C4P-OS65D_3.3_Tutorial2.65d OS65D V3.3 Tutorial Disk 2 for C4P 5.25" floppy
C4P-OS65D_3.3_Tutorial3.65d OS65D V3.3 Tutorial Disk 3 for C4P 5.25" floppy
C4P-OS65D_3.3_Tutorial4.65d OS65D V3.3 Tutorial Disk 4 for C4P 5.25" floppy
C4P-OS65D_3.3_Tutorial5.65d OS65D V3.3 Tutorial Disk 5 for C4P 5.25" floppy

OS-65D  Tutorial disk five
  September 16, 1981

 1 > Directory
 2 > Create a new file
 3 > Change a file name
 4 > Delete file from diskette
 5 > Create blank data diskette
 6 > Create data diskette with files
 7 > Create buffer space for data files
 8 > Single or dual disk drive copier
 9 > Enter OS-65D system

DOS/65 Description
Dos65-48K-C4P.zip

*Updated 9/2/2022
Richard A. Leary's CP/M-like operating system for 48K OSI 5.25" floppy
Contains 10 disk images and PDF information files
*corrected disk4 & disk1 sector header error
Thanks to original poster!
See additional files at DOS65 Github archive

Others Description
C4P-PLOTBASIC.65D Plot BasicPlot BASIC has commands to use OSI character graphics to display drawings and animations
C4P-FIGFORTH.IMG Fig-Forth V1.0 for C4P 5.25" floppy
OSI Forth 1.0
Copyright (c) 1980
Technical Products & PROGRAMMA

Stand Alone OSI C2/4
FigForth 24K nMHz
(c) 1981 M Butts * 408
ForthTools Box 12054
Seattle WA 98102

U.C.S.D. Pascal ( Updated: 2020-08-14) Description
UCSDPAS1.65d

UCSDWORK.65d Work Disk Copy
1980 p-Systems Pascal System IIs disk 1 - requires 48K RAM System
contains:
SYSTEM.PASCAL   40  5-May-80
SYSTEM.MISCINFO  1 19-Dec-80
SYSTEM.INTERP   20 14-May-80
SYSTEM.BIOS      7 19-Dec-80
SYSTEM.SWAPDISK 4  10-May-80
SYSTEM.FILER    28 22-Jul-79
SYSTEM.EDITOR   45 22-May-79
UCSDPAS2.65d Pascal System disk 2
contains:
SYSTEM.COMPILER 68 12-May-80
SYSTEM.SYNTAX   14 21-Nov-79
SYSTEM.ASSMBLER 49 10-May-80
6500.OPCODES     2 25-Apr-80
ASM.ERRORS       7 25-Apr-80
6502.INFO.TEXT   4 31-Aug-79
UCSDPAS3.65d Pascal System disk 3
contains:
SYSTEM.LINKER   22  2-Jun-80
SYSTEM.LIBRARY  19 27-Nov-79
FORTRAN.CODE    89 16-Jun-80
UCSDUTL1.65d Pascal util disk 1
contains:
REC.DOCUM.TEXT     6  3-Jul-79
RECOVER.G.CODE     8  9-Jun-79
SAMPLEGOTO.TEXT    4 17-Nov-78
YALOE.CODE        14  4-Mar-79
LIBMAP.CODE        7 28-Feb-79
MARKDUPDIR.CODE    4 19-Jul-79
COPYDUPDIR.CODE    3 19-Jul-79
LIBRARY.CODE       7 12-May-80
SCREENTEST.CODE   19 20-Sep-79
BINDER.CODE        6  2-May-80
DISASM.II.CODE    41  3-Apr-79
OPCODES.II.0       5  3-Apr-79
SC.GEN.CODE       16  8-May-79
UCSDUTL2.65d Pascal util disk 2
contains:
PATCH.DOC.TEXT  24 10-May-80
PATCH.CODE      34  4-Apr-79
FLIPCODE.CODE    8 24-Jan-80
OPFILE           1 24-Jan-80
FLIPDIR.CODE     3 22-Feb-80
RELOC.CODE       7 18-Mar-80
SQUISH.CODE      8 18-Mar-80
BIOS.CODE        8 16-May-80
INTCON.CODE      4 16-May-80
EXTCON.CODE      3 17-May-80
EMPTYUSR.CO@E    2  2-May-80
AMPTYREM.CODE    3  5-May-80
EMPTYPRN.ODE     3  5-May-80
PARALLEL.CODE    3 10-May-80
SERIAL.CODE      3 10-May-80
UCSDUTL3.65d Pascal util disk 3
contains:
II.SYSTEM         33 27-Apr-80
SETUP.CODE        24 13-Nov-79
STARTUP.CODE       3  5-May-80
BIOSUTIL.CODE      7 17-May-80
DISKUTIL.CODE     16 10-May-80
RTUNIT.CODE       29 16-Jun-80
RELOC.DOC.TEXT    12 10-May-80
FLIP.DOC.TEXT     16 10-May-80