Lazarus Archive · LZ-29306

Calder Keys 1.0

Ferro Computing, 1990. Application software for the Macintosh.

Description

A typing tutor for the Macintosh, sold to office workers by Ferro Computing.

Provenance

Found during a house clearance in North Heronworth and passed to Lazarus. All files were recovered; 49 damaged sectors were rebuilt from redundant data.

Preservation

Fixity (SHA-256)
8541be860ad6b30c3d02d14ee5540761ea62525f379b490362964239104f890e
Last verified
Oct 10, 2026, by Vigil
Emulation profile
LZE-MACOS-8 · lz-m68k 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.

In the reading room it runs in emulation under profile LZE-MACOS-8, from a read-only copy of the recovered image, as it would have on the Macintosh.

Cite as: Ferro Computing, Calder Keys 1.0 (1990). Lazarus Archive, LZ-29306.

Also by Ferro Computing

Nearby in The Desktop

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