Microsoft MS-DOS 6.20 Supplemental Disk (5.25-1. Microsoft MS-DOS 6.20 Step-Up (5.25-1.2mb) PCjs offers a variety of online machine emulators written in JavaScript. Zusatzdiskette.- 4 x KryoFlux Images der Originaldisketten- 4 x MFM Sektor Images (.img)- 4 x. Microsoft MS-DOS 6.20 Step-Up (3.5-1.44mb) Das Betriebssystem MS-DOS 6.22 in deutscher Version inkl. Microsoft MS-DOS 6.20 Plus Enhanced Tools Windows 3.1 (ISO) Microsoft MS-DOS 6.20 Plus Enhanced Tools (5.25-1.2mb) Microsoft MS-DOS 6.20 Plus Enhanced Tools (3.5-1.44mb) DOS (/ d s /, / d s /) is a family of disk-based operating systems for IBM PC compatible computers. DOS Download count 1484 (743 for release) Downloads. Microsoft purchased it and licensed it to IBM for use with Microsofts IBM PC language products. Microsoft MS-DOS 6.20 (Beta) () () (3.5-1.44mb) The boot screen and command-line interface of MS-DOS 6, with an example of its directory structure The boot screen and command-line interface of FreeDOS, showing version information and an example of its directory structure. Originally 86-DOS, written by Tim Paterson of Seattle Computer Products, DOS was a rough clone of CP/M for 8086 based hardware. Product type OS Vendor Microsoft Release date 1993 Minimum CPU 8088 Minimum RAM 512KB Minimum free disk space 6MB User interface Text Platform DOS Download count 1068 (42 for release) Downloads Download name