发明名称 |
IMPROVEMENTS IN OR RELATING TO DATA PROCESSING SYSTEMS |
摘要 |
<p>A data processing system has a facility for a rapid access to the data store by simultaneous reading of data channels over a time multiplexing unit. Multiplexed data is transmitted to comparator stages for comparison with keying-in words in order to control the search process. The output channels from the magnet disc store are coupled over a control unit (2) to a multiplexer (3) handling twelve data channels each operating independently. The multiplexed outputs are transmitted to a bank of sixteen comparator stages (5). The comparator compare the output with the stored keying-in values and the result is transmitted to a search control unit (7). If the search criteria is satisfied (10) the process controller (8) generates an access control signal (9) to the memory output control circuits (2).</p> |
申请公布号 |
IN142852(B) |
申请公布日期 |
1977.09.03 |
申请号 |
IN1512CA1975 |
申请日期 |
1975.07.31 |
申请人 |
INTERNATIONAL COMPUTERS LTD |
发明人 |
MITCHELL R W;MARTIN M W;WEBB D R |
分类号 |
G06F17/30;G11B27/30;(IPC1-7):G06F15/00 |
主分类号 |
G06F17/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|