Browse Prior Art Database

Queuing Memory System

IP.com Disclosure Number: IPCOM000096280D
Original Publication Date: 1963-Mar-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Bowdle, RR: AUTHOR [+5]

Abstract

This queuing memory receives incoming data which arrives intermittently from a plurality of different input lines 9. The data is destined for one or more of a plurality of output lines 10. This data is recorded on a portion of the queuing memory corresponding to the designated output line. The queuing memory is in the form of a rotating disk 11 having a magnetizable surface on which are provided a plurality of con centric tracks 11a. The disk surface is divided into sectors corresponding to the different output destination lines, as indicated. Data is written on the different tracks 11a by write head 12b. This is movable radially of the disk surface by a write head access device 13 to position head 12b at any one concentric track 11a. Data is read from tracks A 11a by read head 12c.

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Queuing Memory System

This queuing memory receives incoming data which arrives intermittently from a plurality of different input lines 9. The data is destined for one or more of a plurality of output lines 10. This data is recorded on a portion of the queuing memory corresponding to the designated output line. The queuing memory is in the form of a rotating disk 11 having a magnetizable surface on which are provided a plurality of con centric tracks 11a. The disk surface is divided into sectors corresponding to the different output destination lines, as indicated. Data is written on the different tracks 11a by write head 12b. This is movable radially of the disk surface by a write head access device 13 to position head 12b at any one concentric track 11a. Data is read from tracks A 11a by read head 12c. This is driven by read head access mechanism 14 independently of the write head access to position the read head adjacent to any one track 11a.

Input data is supplied through input buffer 16 to address matrix network 17. This determines the address On queuing memory 11 for which the input data is destined and determines the proper file address for this message. The portion of the input message identifying the output destination is compared with a measure of the rotative position of disk 11. Such is supplied from a file timing device 19 to produce an indication from an input control network 21 when the desired sector is under write head 12b. When this occurs, write gate 22 is opened and the input data to be written is supp...