CODOS (Channel Oriented Disk Operating System) is the name of the Disk Operating System made by MTU for KIM-1, SYM-1 and AIM-65.
The DOS needs the K-1013 floppy disk controller, 8 inch disk drive(s) and optional the K-1008 Visible Memory.

CODOS V2 was the version for the MT-130/140. Lots of software is available, see the MT-130 page for manuals.

CODOS V1 is being reverse engineered from CODOS V2 by Eduardo Casino.

CODOS Manuals

	MTU APEX-65 Operating System July 1980 Very Preliminary Release 0.2: AIM
	MTU CODOS V1.0 August 1980
	MTU CODOS V1 October 1980
	MTU CODOS V2 MTU-130 January 1982
	QumeTrak 842 Maintenance Manual

CODOS V2 Disk images

• BASIC, IGL, CIL, VGL, KGL and Diskex
• Demostration Disk 1.5 1982 – MTU-BASIC Included
• Distribution Disk 1.1 – 1983 MULTI-O
• Distribution Disk 1.4 1982 – BASIC, IGL, CIL, VGL, KGL and Diskex
• Distribution Disk 1.4 1982 – CODOS 2.0 & BASIC 1.5
• Distribution Disk 1.5 1982 – CODOS 2.0
• Disk 1.7 – MTU-140 Datamover
• MTU-140 Datamover 1.7
• MTU-BASIC 1.5
• MULTI-O 1.1

Optional Software (added May 2026, thanks VintageTech again)

• Distribution Disk 1.4 1982 – MACASM
• Distribution Disk 1983 – Wordpic 1.0 NEC 8023 Printer Version
• MTU-130 User Group Disk 3
• MTU-140 User Group Disk 5
• Option Software Disk 1.6 1984 – MTU-Forth79 2.1 – fixed
• Optional Software Disk 1.0 1982 – DMXMON
• Optional Software Disk 1.0 1982 – Wordpic
• Optional Software Disk 1.2 1982 – MTU-C
• Optional Software Disk 1.6 – MAGIC-L Language