Communications: electrical – Digital comparator systems
Patent
1974-01-10
1976-12-21
Atkinson, Charles E.
Communications: electrical
Digital comparator systems
G06F 300
Patent
active
039991636
ABSTRACT:
A secondary storage facility including magnetic tape, disk or drum units or other sequential access storage units. Each storage unit or drive connects to a controller by means of a device bus with asynchronous and synchronous paths. Status and controller information is coupled between the controller and a selected drive unit asynchronously over the asynchronous bus. Actual data transfers occur between the controller and a drive over the synchronous bus and between other units in the system and the controller using direct memory access or equivalent data transfers.
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Hastings Thomas N.
Jenkins Steven R.
Ku Victor
Levy John V.
McLean Peter
Atkinson Charles E.
Digital Equipment Corporation
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