发明授权
- 专利标题： Data processing system write protection mechanism
- 专利标题（中）： 数据处理系统写保护机制
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申请号： US192875申请日： 1980-10-01
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公开(公告)号： US4432050A公开(公告)日： 1984-02-14
- 发明人: Robert J. Harris , Scott W. Ryburn , William E. Woods , Henry F. Hartley
- 申请人： Robert J. Harris , Scott W. Ryburn , William E. Woods , Henry F. Hartley
- 申请人地址： MA Waltham
- 专利权人： Honeywell Information Systems, Inc.
- 当前专利权人： Honeywell Information Systems, Inc.
- 当前专利权人地址： MA Waltham
- 主分类号： G06F9/24
- IPC分类号： G06F9/24 ; G06F9/22 ; G06F11/00
摘要：
Use of a control storage device coupled with a central processing unit is locked, during the loading process from the unit to the device, to a would-be user of the device until such loading process is complete as indicated by a so-called "unlock" command received from the central processing unit. An indication of an error or malfunction in the control storage device either during the loading process or thereafter is also provided to the central processing unit.
公开/授权文献
- US6024641A Method, apparatus and system for lottery gaming 公开/授权日：2000-02-15
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