510a  510A - AT&T Personal Terminal
510d  510D - AT&T Personal Terminal
513  b513  bct513  att513
           - AT&T Teletype
4410       - AT&T Teletype
4420       - AT&T Teletype
5410       - AT&T Teletype
5420       - AT&T Teletype
5425       - AT&T Teletype
610        - AT&T Teletype
620        - AT&T Teletype
PC6300PLUS  pc6300plus  6300plus
           - AT&T PC6300+
unixpc  3b1  pc7300  PC7300  s4 
           - AT&T UNIX pc
hp2621     - Hewlett-packard
tvi925     - Televideo
vt100      - DEC
