The Early Years

1960s – UPI, Western Union, AT&T switch from old fashioned Baudot to modern ASCII – donate Baudot-dependent teletypewriters to AG Bell and TDI

Robert Weitbrecht designs acoustic coupler to attach to discarded TTY modem obtained from Dr. James Masters. With financial backing from Andrew Saks, the three form a team: APCOM

New TTYs:

• • 75 – 200 pounds

  • 4 feet high by 2 feet wide

  • Noisy, slow communication

  • Half duplex mode