Understanding Data Communications: From Fundamentals to Networking, 3rd Edition

Gilbert Held is an internationally recognized author and lecturer who specializes in the applications of computer and communications technology. With over 30 years ofexperience in managing communications networks, he conducts seminars on topics that include LAN/WAN internetworking, data compression, and PC hardware and software. Held has written numerous books on computers and communications technology and has been recognized for his technical excellence in writing.