Token-ring local area networks-an introduction

The increasing dependance on computers in the office environment, including the use of the personal computer as an intelligent workstation, has revolutionized the workplace and increased the demand for computer communication technology. Low-cost, high-speed interconnection of personal computers, host systems, and special-purpose peripheral devices is a must. Unprecedented levels of standardization and openness are expected in the design of local computer communication systems because of the mixed-vendor nature of the data processing environment.