Research Teleray 3541
A detachable keyboard option was introduced in March, 1977 at a price of $50, or $100 with a numeric keypad. A separate readout monitor was introduced in March, 1977 at a price of $100 less than the price of a terminal.[1]
- ↑ "Units Get Keyboard", Computerworld, March 21, 1977, pg. 36.