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| Obstacle detecting apparatus using ultrasonic waves |
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| Ultrasonic sensor system |
| OF THE INVENTION Referring to FIGS. 1 and 2, a doorway is shown in a wall W, the doorway including ... |
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| Flash analog-to-digital converter with logarithmic/linear threshold voltages |
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| Traffic information radio signal receiver |
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LAN server personal computer with unattended activation capability
| Details |
Inventors: Allard, David J.; Chandra, Pramod;
Assignee: International Business Machines Corp. (Armonk, NY)
Primary Examiner: Bowler; Alyssa H.
Assistant Examiner: Shak; Alpesh M.
Attorney, Agent or Firm: Magistrale; Anthony N.
This invention relates to personal computers used as network servers, and more particularly to unattended activation and operation of such personal computers through cooperation of power supplies for supplying electrical power to electrically operated components which manipulate or store digital data with a controlling network option card added to the personal computer in adapting it to the network environment. In accordance with this invention, a system administrator is relieved of any necessity of leaving equipment in the power-on active state in order to have network resources available to client users. |
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DETAILED DESCRIPTION OF INVENTION While the present invention will be described more fully hereinafter with reference to the accompanying drawings, in which a preferred embodiment of the present invention is shown, it is to be understood at the outset of the description which follows that persons of skill in the appropriate arts may modify the invention here described while still achieving the favorable results of this invention.
Accordingly, the description which follows is to be understood as being a broad, teaching disclosure directed to persons of skill in the appropriate arts, and not as limiting upon the present invention.
Referring now more particularly to the accompanying drawings, a microcomputer embodying the present invention is there shown and generally indicated at 10 (FIG.
1).
As mentioned hereinabove, the computer 10 may have an associated monitor 11, keyboard 12 and printer or plotter 14.
The computer 10 has a cover 15 formed by a decorative outer member 16 (FIG.
2) and an inner shield member 18 which cooperate with a chassis 19 in defining an enclosed, shielded volume for receiving electrically powered data processing and storage components for processing and storing digital data.
At least certain of these components are mounted on a planar 20 which is mounted on the chassis 19 and provides a means for electrically interconnecting the components of the computer 10 including those identified above and such other associated elements as floppy disk drives, various forms of direct access storage devices, accessory cards or boards, and the like.
The chassis 19 has a base indicated at 22, a front panel indicated at 24, and a rear panel indicated at 25 (FIG.
2).
The front panel 24 defines at least one open bay (and in the form illustrated, four bays) for receiving a data storage device such as a disk drive for magnetic or optical disks, a tape backup drive, or the like.
In the illustrated form, a pair of upper bays 26, 28 and a pair of lower bays 29, 30 are provided.
The upper bays 26, 28 are adapted to receive peripheral drives of a first size (such as those known as 5
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