发明名称 |
Extended memory system and method |
摘要 |
An extended memory system includes a processor, a plurality of input/output devices, a real memory having first and second portions thereof, the first portion storing a system operation program and the second portion storing a plurality of user programs. The processor produces logical addresses when executing user programs or input/output routines, which logical addresses are translated to real memory addresses by one of two first translation memories. System operation instructions common to all user programs are stored in a low order address portion of the real memory. Different user programs are mapped into mutually exclusive portions of the real memory by means of the two translation memories.
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申请公布号 |
US4403283(A) |
申请公布日期 |
1983.09.06 |
申请号 |
US19800173208 |
申请日期 |
1980.07.28 |
申请人 |
NCR CORPORATION |
发明人 |
MYNTTI, JON N.;ANDERSON, KIRK P.;HOSLER, JAY R. |
分类号 |
G06F12/02;(IPC1-7):G06F3/00 |
主分类号 |
G06F12/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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