MS-DOS 6.22 / ROM-DOS 6.22


DOS 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 both MS-DOS and ROM DOS versions. EMAC will load DOS onto a Flash Disk at no charge with the purchase of an SBC, RAM, and Flash Disk with DOS License.

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

CharacteristicsMS-DOS 6.22ROM DOS 6.22
RAM Space Required (Min.)64KB18KB
ROM Space Required (Min.)134KB124KB
Application Size Supported (Max.)637KB638KB
Disk Size Supported (Min.)32MB32MB
Floppy Disk Size Supported (Max.)2.88MB2.88MB
Runs in High Mem AreaYESYES
EMS, EMM386 SupportYESYES
XMS, HIMEM SupportYESYES
SMARTDRV Caching SupportYESYES
RAM Drive SupportYESYES
UMB, Load Drivers HighYESYES
MEMMAKER Memory OptimizationYESNO
INERLINK / INTERSVR Client / ServerYESNO
Multi-CONFIG Boot OptionsYESYES
Power-conserving Device DriversYESYES
Advanced Power Management (APM) SupportYESYES
ROM Drive SupportNOYES
Interactive Start SupportNOYES
Boots Instantly to ROM ApplicationsNOYES
Executes from ROMNOYES
DRVSPACE Support*YESYES

*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