Special Features:

Ptechnical characteristics follow: dual cartridge rigid disk data storage lru, (2) removable sealed disk cartridges with 18.5 mbyte formatted capacity ea.; disk drive electronics, formatted, data channel host adapter, interface to cpu via i/o bus expander, disk access times are average latency 8.33 ms and avg access 40 ms; function is to store 37 mbytes of hard disk mast storage media for the rolm 1666b computer; 400 hz, single phase; 26.00 in. L; 8.75 in. W; 10.50 in. H

Properties:

An electromechanical item which accepts and systematically retains digital input data in such a manner as to facilitate the rapid recovery of stored information. The item may or may not consist of disk(s) some of which are removable, hard, removable disk packs, fixed disks, or removable flexible, each surface coated with a material susceptible to spot magnetization, integral writing, a drive motor and its mechanical linkage, and data translating heads for impressing on or removing from the disk surface data in digital form. the item is a component of an electronic computer. see also, magnetic drum, data storage; core memory unit.