Description
A disk utility for the Apple II, published by Keystone Computing in 1979.
Provenance
Brought to a Lazarus rescue day by a former owner. The tape had stretched near its start; the first blocks were repaired by hand from the sampled signal. All files were recovered; 14 damaged sectors were rebuilt from redundant data.
Preservation
- Fixity (SHA-256)
4846572eabcd663659e06bd9903128c72dae0ad9a1ea7687f37786cd1de2d9db- Last verified
- Oct 26, 2026, by Vigil
- Emulation profile
- LZE-APPLE2-6 · lz-6502 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-APPLE2-6, from a read-only copy of the recovered image, as it would have on the Apple II.
Cite as: Keystone Computing, Lumen Utilities (1979). Lazarus Archive, LZ-06231.