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1 introduction – Measurement Computing PCM-D24/CTR3 rev.3 User Manual

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1 INTRODUCTION

The PCM-D24/CTR3 is a data acquisition and control board for IBM PC compatible
computers with PCMCIA type slots. The heart of the board is an 82C55 digital I/O
chip and an 82C54 counter/timer chip. Customers familiar with the CIO-DIO24/CTR3
will immediately notice the similarity in register structure and function between the
PCMCIA board and the ISA bus board.

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