Description
A typing tutor for the PDP-11, sold to home users by Karimi & Chen.
Provenance
Deposited by Greenbelt Retro Computing Society in 2024. The disks had been stored beside a loudspeaker, and one track on each was weak. About 77 percent of the data could be read; the gaps are mapped.
Preservation
- Fixity (SHA-256)
10e7aa83e2889e460eadfd75f042c86dfb9a4ba82d399996ea2ddcb8f198bf1d- Last verified
- Sep 5, 2026, by Vigil
- Emulation profile
- LZE-PDP11-3 · lz-pdp core
- Copies
- Three, on two kinds of storage, in two cities
- Original carriers
- Kept in cold storage in Vancouver
Access
Free, in the Lazarus reading room in Vancouver and in partner reading rooms. Copies may be taken away.
In the reading room it runs in emulation under profile LZE-PDP11-3, from a read-only copy of the recovered image, as it would have on the PDP-11.
Cite as: Karimi & Chen, OrchidTypist (1975). Lazarus Archive, LZ-41086.