KEY INPUT DEVICE FOR CAI

摘要

PURPOSE:To improve both the operability of keys and the maintenance properties of a key input device for CAI by allocating selectively the learning terminals in a classroom to the keys arranged in a matrix on a key console in response to the array of those learning terminals. CONSTITUTION:A key console 2 contains keys arranged in a matrix of (8X10) or (10X10). The number of the keys of the console 2 and the matrix array of these keys are set so as to satisfy the maximum capacity that is generally required as the classroom specifications of a CAI system. The learning terminals 5 in a classroom are allocated selectively to those keys on the console 2 respectively in response to the array of the terminals 5. Then the information on the allocation of keys is stored in a table memory 3a of a conversion table 3.