Mark Edward Soper has taught computer troubleshooting and other technical
subjects since 1992. He is author or co-author of several books. David Prowse,
currently a network security engineer, founded the web-based Guru Computer
Training company. He is author or co-author of several books. Scott Mueller is
the industry's most trusted, authoritative hardware expert. Elizabeth (Beth)
Smith (San Francisco Bay Area, CA) is an experienced instructor and technician
who has spent the past several years teaching operating system courses in
private technical schools.