CP/M 86 1.x

CP/M-86 is a port of Digital Research's CP/M operating system to the Intel 8088/8086. The earlier CP/M-80 was extremely popular on 8080/Z80 microcomputers.

It was anticipated that CP/M-86 would be the de-facto operating system on IBM's 8088 based IBM Personal Computer. However after a failure between Digital Research and IBM to coordinate a license for the IBM Personal Computer's August 1981 release, IBM instead partnered with Microsoft to release PC-DOS. CP/M-86 for the IBM PC was released on April 1982, but by that time DOS already had a foothold.

CP/M-86 was ported to a number of non IBM compatible platforms that also used the x86 CPU. It later evolved in to DOS Plus and DR-DOS and branched in to Concurrent CP/M-86

CP/M is currently open sourced under the BSD license.

The Columbia Data Product OEM and IBM releases will run on an IBM PC or compatible. Others, however, will not.

The CP/M-86 1.10 [IBM PC] release has known issues running on an AT or with a hard disk controller.

Product type
OS
Vendor
Digital Research
Release date
1983
Minimum CPU
8088
Minimum RAM
128KB
Minimum free disk space
320KB
User interface
Text
Platform
CPM

Downloads

Download Name Version Language CPU File type File size
CPM-86 1.00 [IBM PC] (5.25-160k) 1.00 [IBM PC] English x86 5¼ Floppy 65.39KB
CPM-86 1.1 [NCR Decision Mate V] (5.25-DSDD) 1.1 [NCR Decision Mate V] English x86 5¼ Floppy 147.63KB
CPM-86 1.1 [TI Professional Computer] [BETA] (5.25-160kb) 1.1 BETA Prerelease English x86 5¼ Floppy 39.52MB
CPM-86 1.1 [Zenith Z-100] (5.25-DSDD) 1.1 [Zenith Z-100] English x86 5¼ Floppy 277.01KB
CPM-86 1.1 r0.9 for NEC APC (8-inch) 1.1 r0.9 for NEC APC English x86 Archive 20.7MB
CPM-86 1.10 [IBM PC-XT] (5.25-320k) 1.10 [IBM PC-XT] English x86 5¼ Floppy 84.45KB
CPM-86 1.10 [IBM PC] (5.25-160k) 1.10 [IBM PC] English x86 5¼ Floppy 154.58KB
CPM-86 1.x Manual [IBM OEM r1.00] 1.x [IBM OEM r1.00] English x86 Archive 9.14MB
CPM-86 R1.1 [CDP OEM V1.5] (5.25-320k) R1.1 [CDP OEM V1.5] English x86 5¼ Floppy 92.42KB
CPM-86 R1.1 [CDP OEM V1.6] (5.25-320k) R1.1 [CDP OEM V1.6] English x86 5¼ Floppy 140.25KB
CPM-86 R1.1 [CDP OEM V1.7] (5.25-320k) R1.1 [CDP OEM V1.7] English x86 5¼ Floppy 207.42KB
CPM-86 V1.1B [Eagle Computer OEM] (5.25-320k) V1.1B [Eagle Computer OEM] English x86 5¼ Floppy 171.57KB

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