Lazarus Archive · LZ-29485

Nimbus Keys 1.9

Marino & Castellanos, 1991. Application software for the TRS-80.

Description

A typing tutor for the TRS-80, sold to office workers by Marino & Castellanos.

Provenance

Donated by the creator’s family in 2020. The tape had stretched near its start; the first blocks were repaired by hand from the sampled signal. The image matches a checksum published by the original distributor.

Preservation

Fixity (SHA-256)
dd42862ae69412154ec7e245202b648d471dc6f2970a16e4290d17e6a53dd25d
Last verified
Sep 29, 2026, by Vigil
Emulation profile
LZE-TRS80-3 · lz-z80 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. The license does not permit copies to be taken away.

In the reading room it runs in emulation under profile LZE-TRS80-3, from a read-only copy of the recovered image, as it would have on the TRS-80.

Cite as: Marino & Castellanos, Nimbus Keys 1.9 (1991). Lazarus Archive, LZ-29485.

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