Device for controlling a computer system

10) Device for controlling a computer system (I) according to any one of the preceding claims, characterized in that said case (4) comprises a distinct part (41) including said block of reception (17), provided with a collecting horn (43) of said beams, and linked by a shielded cable (42) to the principal part (38) collected to said port (5).

11) Device for controlling a computer system (1) according to any one of the preceding claims, characterized in that said electronic box (4) comprises a principal part (38) in form of console provided with switches (40) making it possible to select one or more of said pointing devices (3) and to make inoperative the others.

12) Device for controlling a computer system (1) according to any one of the preceding claims, characterized in that said binary digits transmit moreover periodically sequences of binary data for signaling said pointing devices and in that an alarm is set off when any of said sequences of binary data for signaling is not received any more by said electronic box (4) after a predetermined amount of time.

13) Device for controlling a computer system (1) according to any one of the preceding claims, characterized in that said binary digits transmit moreover sequences of binary data characteristic of the integrity of each one of said pointing devices (3), preferentially of the presence of the ball in the wireless mouse type.

14) Device for controlling a computer system (1) according to any one of the preceding claims, characterized in that each one of said pointing devices (3) comprises moreover push-buttons in a number at least equal to 2, preferentially 7, whose sequences of binary data representative of their states are included in said binary digits.

15) Use of the device for controlling a computer system (1) according to any one of the preceding claims, characterized in that said information processing system (1) comprises:

• a central processing unit preferentially of the portable computer (1) type,
• a peripheral display preferentially of the LCD tablet type (47) adaptable to an overhead projector (48), or a portable video-projector,
• an application software set of the office automation or communication type, or specific of a function or a trade, and in that said use is preferentially collective initiation with microprocessing and collective training to the use of said software.

18) Use of the device for controlling a computer system (1) according to any one of the preceding claims, characterized in that said computer system (1), said pointing devices (3), and said electronic box (4) are placed on a trolley held at the disposal of users, trainers, presenters or teachers, to be taken along and used in buildings without special electric wiring.

19) Use of the device for controlling a computer system (1) according to any one of the preceding claims, characterized in that computer system (1) comprises moreover keyboard simulation software making it possible to simulate a keystroke by pointing the simulated image of said key by means of one of said pointing devices.

20) Use of the device for controlling a computer system (1) according to any one of the preceding claims, characterized in that said communication program includes sequences of identification binary data in said binary digits for identifying said pointing devices (3) which are transmitting, and in that said computer system (1) comprises moreover software for allotting a cursor (54) of different form and/or color to each one of said pointing device (3), according to said sequences of identification binary data received.