Abstract: The invention provides a conference details recording system for recording various types of information presented during the course of a conference by associating the contents of the presentation with speakers and with words, phrases, etc. in the presentation together with time information so that any type of information as desired can be retrieved later by using a predetermined retrieval key. The system comprises a conference room 100, an entering and leaving control unit 200 to control entering and leaving of conference participants in the conference room, a display unit 300, an image/voice collecting unit 400, a recording unit 500, an information coordinating unit 600, a superintendence control unit 700, and a clock 800, and information of the conference recorded on the recording unit 500 is retrieved by using keywords or key phrases, etc. inputted via an input/output interface 900.

Abstract: An electronic signal processing apparatus, such as, a personal computer, is basically composed of a power section for providing DC operating power from an AC power source and a main signal processing section operative by the DC operating power for performing the minimal necessary functions. The power and main signal processing sections are mechanically connected for relative sliding movements between closely adjacent positions minimizing the overall dimensions of the apparatus and spread-apart positions in which a space is defined between the power and main signal processing sections for accommodating at least one additional signal processing or handling section by which the functional capabilities of the apparatus are expanded.

Abstract: A microcomputer system having a central processing unit (CPU) responsive to mode control signals for operating the system in respective operating modes, a power supply circuit for supplying a reset signal to the CPU, a memory, and a keyboard, is provided with a mode selecting circuit which includes a logical gate with inputs and with outputs coupled to the CPU for supplying the mode control signals, a selector switch device connected with the logical gate for selectively determining which of the mode control signals is supplied to the CPU, and a sensing means connected with the logical gate for causing one of the mode control signals to be applied to the CPU when the reset signal is supplied to the CPU and the keyboard is simultaneously actuated, irrespective of the condition of the selector switch device.