| What could this be? |
| 1983 Otrona Attache 5300 |
The Otrona Attache cost $3995 new and was designed and made in Boulder, Colorado from 1982 to 1984. It has a Z-80 processor running CP/M 2.2.5 and 64k of RAM. The handle flips under to prop the computer up at two different angles.
Watch the Otrona Attache in action:
![]() |
| Programs for the Otrona Attaché |
![]() |
| A video I recorded of an MBASIC-80 piano program that lets you play notes with the keyboard. |
If you would like copies of any Otrona diskettes, send a message to my email address shown on the contact page. I can send you a listing of the contents of each disk and make copies for a small fee.
Sent from my new Otrona Attache

