Howard M. Berlin is an electrical engineer with the Chemical Systems Laboratory at Aberdeen
Proving Ground, Maryland, and has been an adjunct instructor in the Department of Electrical
Engineering at the University of Delaware. His experience has primarily been in biomedical
engineering research and physiological instrumentation. He has taught several short courses for
the Department of the Army, several universities and conferences, and graduate courses at the
University of Delaware. He has authored a number of governmental reports and articles in
scientific and amateur radio magazines. In addition, he is the author of the following books:
555 Timer Applications Sourcebook, With Experiments; Design of Active Filters, With
Experiments; Design of Op-Amp Circuits, With experiments, and Design of Phase-Locked Loop
Circuits, with Experiments, all published by Howard W. Sams & Co,, Inc. He is presently a
member of Sigma Xi, IEEE, and the Delaware Academy of Medicine. As an active ham radio
operator, he can be heard using the call letters W3HB, and was formerly K3NEZ.

Waldo T. Boyd has an extensive background in electronics, industrial management, writing and
teaching. He has over 15 years of experience in technical and industrial writing and editing. He
has written numerous magazine articles and several books and is a member of the Author's
League of America, Science Fiction Writers of America, and the California Writers Club. He
holds FCC first-class radiotelephone and advanced-class radio amateur licenses. In writing this
book, he has also drawn on his experience as a certificated vocational instructor.

E.G. Brooner is a semi retired engineer who has had a lifetime association with various branches
of the electronics profession ranging from two-way radio communication to major military and
defense systems. Having majored in business management, his main computer interest is
business software and the application of microcomputers to small business use. He has also
been a college programming instructor, and has authored three earlier books and numerous
magazine articles dealing with microcomputer applications. The present book resulted when he
found that potential users had many questions about networks and very little available in the way
of answers.

Dr. Marvin L. De Jong is Professor of Physics at The School of the Ozarks in Point Lookout,
Missouri. He received his A.B. degree in physics from Hope College of Technology in 1960, and
his Ph.D. in radio astronomy from Rensselaer Polytechnic Institute in 1965.
Dr. De Jong has written a variety of papers that have been published in The Astrophysical
Journal, The Astronomical Journal, The American Journal of Physics, The Physics Teacher,
Computer Design, Kilobaud Microcomputing, QST, Micro, and 6502 User Notes. He became
interested in microcomputers several years ago and he spent a sabbatical leave at Virginia
Polytechnic Institute and State University at Blacksburg, Virginia, working with the editors of the Blacksburg Continuing Education Series.

Dr. James M. Downey, a native of Indiana, received his Bachelor's degree in Biology from
Manchester College in 1967, and his Ph.D. degree in mammalian physiology from the
University of Illinois in 1970 where he was introduced to computers. Dr. Downey is a professor
of Medical Physiology at the University of South Alabama at Mobile where he teaches both
undergraduate and graduate students. His research involves cardiac disease, and both
microcomputers and minicomputers play an important role in these investigations. He is an
electronics hobbyist and became interested in microcomputers when they first became readily
available. Dr. Downey has had articles published on both his cardiac disease research and
computer applications. His hobbies include radio-controlled aviation, salt-water fishing, and
photography.

Paul E. Field is a professor of physical chemistry at Virginia Polytechnic Institute and State
University. In addition to regular lecture courses in chemistry, Dr. Field has taught college
courses in experimental methods of physical measurements for more than ten years and, for the
past few years he has presented a course in personal computer interfacing for instrument and
experiment automation. Paul has also been teaching university extension workshop seminars
for academic, government, and industrial scientists and engineers since 1977. As a research
chemist, his interest and scientific publications have been in the area of chemical thermo-
dynamics. For the past two years, he has written a monthly column on Microcomputer Inter-
facing which appears in American Laboratory magazine and electronics trade magazines in
Australia, South Africa, and Switzerland.

John Paul Froehlich is an assistant professor in the Department of Electrical Engineering at the
University of Hartford, where he teaches undergraduate courses in communication engineering,
programming, and microprocessor applications. He has written a book on communication
systems and an article for an encyclopedia. At several national conferences, Mr. Froehlich has
presented papers on solar data acquisition systems and on low-cost development systems for
teaching microprocessor applications. His consulting services include a solar controller,
several data acquisition systems, remote readers for monitoring utility uses, and computer
software. He is a registered engineer in Connecticut and is a member of the IEEE and the
American Society for Engineering Education.

Russell M. Genet was born and raised in southern California. As a young boy, he enjoyed
building radios, telescopes, and model rockets. At 17, he joined the Air Force and served as an
electronics technician in North Africa and as an electronics instructor in Mississippi. After
receiving his electrical engineering degree from the University of Oklahoma, he served as a
missile guidance project officer. Currently, Russ is an Air Force civil servant at Wright-Patterson
AFB, where he serves as director of a research section at the Human Resources Laboratory.
While Russ does fly small planes, and has an amateur radio station (N8HH), his main hobby
is astronomy. He is currently using a TRS-80 in his back yard observatory to study eclipsing
binary stars.

Dr. Paul F. Goldsbrough is a lecturer in the School of Applied Science at Canberra College of
Advanced Education, A.C.T., Australia. Currently he teaches digital electronics and micro-
computer interfacing and applications at the graduate level, as well as analog electronics and
physics, including isotope technology, at the undergraduate level. In 1977 he spent six months
in the USA and England working on educational techniques and application of microcomputers.
Since returning to Australia he has conducted a number of three- and four-day short courses on
microcomputers. His interests include the development of educational equipments and the
application of microcomputers, particularly for systems control.

John M. Holland is an independent consultant specializing in industrial process control systems.
He received his Bachelor of Science degree in Electrical Engineering at Virginia Polytechnic
Institute in 1968. Before joining the US Army in 1969, he was involved in developing flight
control systems. During 1970, he served as a communication officer in Vietnam.
In recent years, John has participated in the development of telemetry systems and fiber-optic
communications systems, including the use of microprocessors for the process control of
fiber fabrication. As a consultant, he has worked with a wide variety of industrial processes.
John holds patents in radio telemetry, low-noise amplifiers, fiber-optic repeater design, and laser
stabilization. In addition, his papers have been published in IEEE Transactions and numerous
other trade journals. He has also written Advanced 6502 Interfacing, published by Howard W.
Sams and Co., Inc.

Steven Jong is a principal software technical writer for a major computer vendor. He is involved
in developing and documenting word processing automation tools. He has both his Bachelor's
and Master's degrees from Boston University. Mr. Jong has had articles published in Byte and
Personal Computing. He is a member of the Society for Technical Communication and the
Boston Computer Society. Mr. Jong's interests include music performance, programming, and
baseball.

Stephen D. Kasten is a chemist with the Tennessee Eastman Company in Kingsport, TN. He
has experience in the use of computers in laboratory automation and he is now working on the
development and application of computer models for various chemical processes. In this way,
small-scale chemical systems are optimized for later scale-up and commercialization. Steve's
main computer interests center on the 6502 and LSI-11 computer systems and their interface
circuits. Steve, his wife and three children have lived in Kingsport since 1975. Mr. Kasten
graduated from the University of New Orleans with a BS in chemistry in 1974.

Ken Kenecht is an experienced radio and television broadcast engineer who became interested
in computers with advent of the MITS Altair 8800 and purchased a very early model. He has
been working with Radio Shack TRS-80 since it was introduced. He is presently an electronics
instructor, freelance author, and freelance broadcast engineer. He has written many articles for
most of the popular computer hobby magazines.
Ken also writes software for many local businesses in the Yuma, Arizona area and has several
programs in national distribution.

Barry Klein is currently an engineering technician. Previously Barry worked for LH Research
(power supply testing) and Music Man, Inc. (guitar amplifier and special-effects device proto-
typing). He plans to develop a line of special effects for the guitar and other equipment. He
received an AA degree in Art from Saddleback Junior College, Mission Viejo, California.
In addition to his interests in prospecting, racquetball, waterskiing, snow skiing, and
photomicrography, he is studying for a private pilot's license.

David G. Larsen is an instructor in the Department of Chemistry at Virginia Polytechnic Institute
and State University, where he teaches undergraduate and graduate courses in analog and
digital electronics. He is coauthor of other books in the Blacksburg Continuing Education
Series and the monthly columns on microcomputer interfacing. He is a co-instructor of a series
of one-to-five-day workshops on the digital and microcomputer revolution, taught under the
auspices of the Extension Division of the University, which attracts professionals from all parts of the world.

Vincent F. Leonard, Jr. is currently Associate Professor of Electrical Engineering at Jamestown
Community College, a State University of New York campus. Prior to coming to Jamestown he
served as Department Chairman of the Aircraft Electronic Technology Program at the Academy
of Aeronautics (LaGuardia Airport, New York). Professor Leonard has served as a consultant to
local industries, has cosponsored several microcomputer workshops in the Jamestown area, and
is a member of ASEE.

Earles L. McCaul is an electronic technician with the Laser Group at Yuma Proving Ground,
Arizona. He is also an adjunct instructor at Arizona Western College where he teaches
electronics and computer science courses. Mr. McCaul is currently using computers for real-
time data collection and analysis of laser and digitally encoded transponder systems. He is the
founder and President of the Yuma Computer Club and lectures on microcomputers and
programming.
Mr. McCaul has also written government reports and articles for technical magazines. He holds
a Bachelor of Science degree in Electronic Systems Design from Southern Illinois University and
is a member of the Society of Automotive Engineers and the IEEE. His hobbies include
automotive electronics, playing jazz guitar, and working with microcomputers.

Elizabeth A. Nichols is a systems consultant with CENTEC Corporation, Reston, Virginia,
specializing in microelectronic applications to energy and environmental problems. Dr.
Nichols received a Ph.D. in mathematics from Duke University in 1974.

JOSEPH C. NICHOLS

Joseph C. Nichols is a systems consultant with Network Analysis Corporation, Washington,
DC specializing in the analysis and design communications networks and distributed systems.
Dr. Nichols received a Ph.D. in mathematics from Duke University in 1970.

Dr. Keats A. Pullen, Jr. is a licensed professional engineer in the state of Maryland and is a
Life Fellow in the Institute of Electrical and Electronics Engineers, Inc. He received a Bachelor
of Science degree in physics from the California Institute of Technology and a Doctor of
Engineering from Johns Hopkins University.
Dr. Pullen taught at Johns Hopkins University and the Pratt Institute of Brooklyn, and has
instructed as an adjunct professor at both the University of Delaware and Drexel University.
During this time, he wrote six books and had many papers, articles, and reports published. He
has also contributed material for two handbooks and the Encyclopedia of Science and
Technology. Dr. Pullen has been an electrical/electronic engineer at Aberdeen Proving Ground,
Maryland, since 1946, and is presently associated with the technical staff of the US Army
Material Systems Analysis Activity.

Steven M. Rogers is a technical sales representative for the Eastman Kodak Company. He
currently specializes in the area of high-speed computer-controlled automatic photographic
printers and negative-handling systems for the photofinishing industry. Mr. Rogers has also
served as a service engineer, a technical instructor in the area of digital logic and servicing of
sequential- and random-access microfilm image-retrieval equipment, and a technical editor. He
has attended California State College at Long Beach and the University of Alaska at Anchorage.

Peter R. Rony is Professor in the Department of Chemical Engineering at the Virginia Poly-
technic Institute and State University. Digital electronics and microcomputers will play an
increasingly important role in process control, a subject of considerable interest to chemical
engineers. He is coauthor of the many other Bugbooks and monthly columns on microcomputer
interfacing that appear in American Laboratory, Computer Design, Ham Radio Magazine, the
German magazine Elektroniker, and other US and foreign magazines.

Leo J. Scanion is Documentation Manager for the Microelectronic Devices business segment of
Rockwell International, in Anaheim, CA. He received his Bachelor of Science degree in Aero-
nautical Engineering from St. Louis University. He has done graduate studies in Electrical
Engineering and Computer Science at the University of California, in Berkley, CA.
Leo's experience includes technical writing in the minicomputer and microcomputer industries,
and engineering programming in the aerospace industry. Before joining Rockwell International,
he served as Technical Publications Manager with Computer Automation, Inc., in Irvine, CA.
Mr. Scanion is also the author of 6502 Software Design and a contributing author to 16-Bit
Microprocessors, both published by Howard W. Sams & Co. Inc.

Neil Sciater was an electronics technician in the US Navy and received a BS degree from Brown
University. He has also completed postgraduate courses in electronics at Northwestern
University and in marketing at Babson College. His earlier professional career includes
experience as an industrial engineer, a microwave component product engineer, and as an
instrumentation specialist on the staff of a Boston engineering consulting firm. Also, Neil was
formerly a regional editor for Electronic Design and an electrical/electronics editor for Product
Engineering.
Mr. Sciater writes professionally on electronics and electromechanical subjects for several
different internationally circulated publications. He is also a consultant to industry in
marketing and technical communications with extensive experience in the preparation of
specifications, documentation, and technical presentation materials. He is currently contributing
feature articles specializing in basic electronic components, sensors, and controls to various
publications.

Andrew C. Staugaard, Jr. is an experienced engineer/educator in the field of microelectronics.
He is presently Assistant Professor of Electrical Engineering at Jamestown Community College,
a State University of New York campus. In 1977 he was the recipient of the faculty Award for
Excellence in Teaching at Jamestown Community College.
Prior to entering the education field, Professor Staugaard was employed as a quality
engineer in microelectronics processing by the Bendix Corporation, Kansas City Division. He
is coauthor of monthly columns on the Motorola 6800 chip family that appear in several US
and foreign magazines.

Robert T. Stone is the reactor supervisor of the Virginia Tech Research Reactor. He was a
nuclear instrumentation instructor in the Navy. His current interest is in the use of analog and
microprocessor-based instrumentation. He is currently pursuing studies at Stanford University
as a National Science Foundation Graduate Fellow. Bob is a member of IEEE, the American
Nuclear society, and several professional honor societies. As an amateur radio operator, he can
be heard using the call letters WB4YCB.

Dr. Christopher A. Titus is a microcomputer applications engineer with Tychon, Inc., in Blacks-
burg, Virginia. He received his Ph.D. from Virginia Polytechnic Institute while working on micro-
computer automated chemical instruments. he has co-authored a number of instrumentation
articles and has had papers presented at major engineering and science conferences.
Chris has programmed with the Intel 8008, Intel 8080, and MOS Technology 6502 Micro-
computers. He has written editor, assembler, disassembler, and debug software, as well as
complete operating systems for microcomputers.

Dr. Jonathan A. Titus is the president of Tychon, Inc., in Blacksburg, Virginia. Most of his
current work involves technical writing and the application of microcomputers for data acquisition
and control. He has written and coauthored a number of articles on computers for both
professional and popular applications.
Jon's first microcomputer experience was with 8008, and his Mark-8 computer was featured
as the first widely available hobby computer. He has co-instructed courses with the American
Chemical Society and now works with the Tychon hardware and software programs.

Phil Wells entered electronics as a "ham". Later, he worked his way through college (University
of California at Berkeley), designing and fabricating printed circuits, and has been involved with
computer projects for the past 15 years. During his years in Silicon Valley, he worked as a
technician, engineer, project engineer, and manager. Mr. Wells has designed equipment for
processors ranging from the 4004 to the Z80 and 6809. He has wide experience with computer
communication projects and did contract work for NASA in that field.

Robert J. Wenzel studied electrical engineering at Ohio State University and has an MBA
from California Western University. He was, in turn, Director of Data Processing at Fairfax
Hospital, a Senior Consultant to Systems and Computer Technology, Vice President, Technical
Development and Director of System Support for Intel Corporation, and Vice President,
Peripheral Products, at National Advanced Systems. He has patents pending on magnetic
disc storage devices and is a member of the Society of Photo-Optical Engineers and the Laser
Institute of America.

Eugene M. Zumchak has his Bachelor's and Master's degrees from Cornell University. He is
currently president of a company engaged in microprocessor system design consultation and
training. His design experience includes a wide range of both analog and digital instrumentation.
Mr. Zumchak has presented public microprocessor courses from coast to coast and has
conducted in-house training for industry and government agencies. His interests include electronic music, art and travel.