ROM-DOS 6.22 / MS-DOS 6.22


ROMDOS continues to be designed into many applications. It is well known to programmers, and it's small, fast, reliable, and inexpensive.  Regardless of whether you have a new design or an existing design, EMAC offers ROM DOS version 6.22. EMAC will load ROMDOS onto a Flash Disk at no charge with the purchase of an SBC, RAM, and Flash Disk with ROMDOS License. (While Microsoft DOS 6.22 Licenses are EOL and no longer sold, we can still offer ROM DOS, which is compadible.)

ROM-DOS is a highly compatible operating system to MS-DOS ROM-DOS is all original code, designed specifically for the embedded systems market. It is smaller in size than MS-DOS and the per copy royalty is often considerably less, depending on quantity. Designed specifically for embedded and handheld systems, ROM-DOS has all the standard DOS desktop utilities needed for an embedded system. Some utilities have been refined to provide only the basics to optimize space. ROM-DOS can be booted from floppy disks, hard drives, CD-ROM drives, flash and solid state disk drives.

Microsoft has announced end of sales for licensing of MS-DOS 6.22, and Microsoft ended support for MS-DOS 6.22 December 31, 2015. As licensing is no longer aviliable, EMAC Inc can no longer provide MS-DOS 6.22 installed on our products, this page retains MS-DOS 6.22 information for referance only.

Feature Comparison Chart

Characteristics MS-DOS 6.22 ROM DOS 6.22
RAM Space Required (Min.) 64KB 18KB
ROM Space Required (Min.) 134KB 124KB
Application Size Supported (Max.) 637KB 638KB
Disk Size Supported (Min.) 32MB 32MB
Floppy Disk Size Supported (Max.) 2.88MB 2.88MB
Runs in High Mem Area YES YES
EMS, EMM386 Support YES YES
XMS, HIMEM Support YES YES
SMARTDRV Caching Support YES YES
RAM Drive Support YES YES
UMB, Load Drivers High YES YES
MEMMAKER Memory Optimization YES NO
INERLINK / INTERSVR Client / Server YES NO
Multi-CONFIG Boot Options YES YES
Power-conserving Device Drivers YES YES
Advanced Power Management (APM) Support YES YES
ROM Drive Support NO YES
Interactive Start Support NO YES
Boots Instantly to ROM Applications NO YES
Executes from ROM NO YES
DRVSPACE Support* YES YES

*Disk Compression Files Add 52-66KB to Memory Requirements

Pricing


Product # Variations Price
SD622-000-0005 ROM DOS 6.22 - ROM DOS 6.22 LICENSE ROM-DOS IS GUARANTEED BY DATALIGHT TO BE 100% COMPATIBLE WITH MS-DOS 6.22 ROM-DOS LICENSES SOLD ONLY WITH HARD DRIVE OR FLASH DRIVE MEDIA Call
SD622-000-0010 MS-DOS 6.22 - MSDOS 6.22 LICENSE MS-DOS 6.22 LICENSES are EOL and no longer SOLD, see ROM-DOS 6.22 Part number: SD622-000-0005 as alternate. Call