Vintage Microsoft MS-DOS Operating System Version 4.01 for personal computers.

This listing is for a complete original MS-DOS 4.01 set and includes the following:

📦 Included

• (3) Original 3.5” floppy disks

• MS-DOS Operating System v4.01

• MS-DOS Install Disk

• Microsoft Shell v1.01

• (3) Original manuals

• MS-DOS User’s Guide & User’s Reference

• MS-DOS Shell User’s Guide & User’s Reference

• Microsoft GW-BASIC User’s Guide & User’s Reference

• Original box (opened)

📝 Condition Notes

• Box shows wear consistent with age and storage (see photos)

• Manuals are intact and readable

• Floppy disks appear clean with no visible cracks or damage

• Software is untested due to modern hardware limitations

This item is sold as vintage computer software / collectible.

Please review all photos carefully — they are part of the description.

⸻

All store items come from a smoke-free, pet-friendly home.

📦 How Shipping Works:

Shipping is calculated by eBay at checkout based on the buyer’s zip code and the package size/weight. USPS and UPS change their rates a few times a year, so costs may vary. I never charge extra or inflate shipping — buyers pay exactly what eBay shows.

If you’d like expedited shipping or a different carrier, please message me before purchasing so the listing can be revised.

Keywords:

MS DOS 4.01

Microsoft MS-DOS

Vintage computer software

3.5 floppy disk software

Retro PC operating system

DOS operating system

IBM compatible software

Vintage Microsoft software

Classic computer OS

MS-DOS manuals