Boots – shoes – and leggings
Patent
1980-05-07
1983-02-01
Springborn, Harvey E.
Boots, shoes, and leggings
G06F 312
Patent
active
043719481
ABSTRACT:
A peripheral-controller, designated as a Train Printer-Data Link Processor, provides the control interface between a main host computer and a train printer mechanism. A plurality of such peripheral-controllers make up an I/O subsystem whereby a main host computer is relieved of housekeeping duties in regard to peripheral units. This train printer data link processor (peripheral-controller) is made up of two slide-in circuit cards. The first card, known as the common front end (CFE) provides micro-code word operators for data transfer and printing operations in addition to supplying a specialized RAM buffer memory for storing data words from the main memory of the main host computer and selecting these words for printing in the attached peripheral device known as a train printer mechanism. The second slide-in card is the peripheral dependent circuit board (PDB) which provides an interface to the train printer mechanism and at the same time provides control data for executing micro-code word operators from the CFE and for selection of print data in the RAM buffer memory storage for printout on the train printer mechanism.
REFERENCES:
patent: 3629848 (1971-12-01), Gibson et al.
patent: 3760366 (1973-09-01), Gregor et al.
patent: 4124888 (1978-11-01), Washburn
patent: 4218754 (1980-08-01), Schaeffer
Burroughs Corporation
Cass Nathan
Kozak Alfred W.
Peterson Kevin R.
Springborn Harvey E.
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