TRS-80 Expansion Interface 26-1140
The TRS-80 Expansion Interface (catalog number 26-1140) is the basic model, shipping with no additional RAM installed. Two other variants were also sold with catalog numbers 26-1141 and 26-1142, containing 16K and 32K or RAM respectively.
In addition to allowing extra RAM to be fitted to a TRS-80, the Expansion Interface also provides:
In addition to these connections, the Expansion Interface provides a 25mS heartbeat interrupt to the computer (RTC).
The Expansion Interface is not compatible with a Level I TRS-80, only Level II.Date : Unknown
Manufacturer : Tandy
Physical Description : TRS-80 interface sn-077756 outer box 5 foam incerts 1 ribbon 4 plastic clip on covers 5 pin - 5 pin male din cable Cassette interface cable expansion interface booklet level 2 basic ref manual back page to basic ref manual (loose from booklet) TRS-80 ref handbook service manual space warp games booklet SCRIPSIT training program book notes for NEWDOS booklet documents for NEWDOS booklet
This exhibit has a reference ID of CH40487. Please quote this reference ID in any communication with the Centre for Computing History.