Materials from Tyler Johnson and Joe Ragland

Bell Series 100 Data Phone Services, 1967

Bell Series 200 Data Phone Services, 1967

Bell Series 400 Data Phone Services, 1967

Bell Series 600 Data Phone Services, 1967

Bell Series 800 Data Phone Services, 1967

Bell System Automatic Calling, 1967

Bell System Message Telephone Network, 1967

Bell System Time Sharing, 1967

Bell Telephone System 103-B Data Set, 3/63

Bell Telephone System 201-A Data Set, 3/63

Bell Telephone System Data Sets 401-A and B, 1963

Bell Telephone System Data Sets 601-A and B, 1969

Bell Telephone System Data Sets 602-A, 1969

Data Set 301 B Interface Specs, 1963

Data Sets 201 A and B Interface Specs, 1965

IBM 2740 Communication Terminal Models 1 and 2 Component Description, 1968

IBM 2741 Communication Terminal, 1970

Teleray 3900 Series CRT Data Terminal

Teletype Model 33 Data Terminals, 1973

Teletype Model 38 Data Terminals, 1973

Teletype Model 38 with APL Features, 1972 (10 characters per second)