Abstract: A computer keyboard is provided which is mounted for pivoting movement adjacent one of its front and rear edges. The keyboard also may be pivotable about a more or less vertical pivot. One or more cams engage the keyboard for movement thereof either continuously or from time to time. The cams are motor operated or manually operated, and may effect pivotal movement of the keyboard on a continuous basis or on an intermittent basis. In a preferred embodiment a time or counter operates a light/buzzer device to call attention of the operator to the necessity for operating a manual lever to effect movement of the cam to effect movement of the keyboard.

Abstract: A message aggregation system employs a coder. Each message or piece of information to be recorded is accompanied by an audio or digital code. The messages or information are recorded or originated in operation serially. This information is aggregated in that all messages accompanied by one code are stored in a first memory or record/playback unit, with all messages following a second code being similarly stored etc., so that messages are aggregated. All of the messages relating to one particular code thus can be transcribed or accessed without the necessity of referring to other messages that are irrelevant thereto.