thumb | | Tektronix 4051 computer graphics terminal.
The Tektronix 405x
series was a series of graphics microcomputers
produced by Tektronix
in the late 1970s through the early 1980s. The display technology was similar to the Tektronix 4014
terminal, using a storage tube
display to avoid the need for video RAM
. The 4051 and 4052 included a CPU
, up to 32 kilobytes
, 11" CRT
and full-sized 300 kilobyte 3M DC-300 series high speed data cartridge (as opposed to the cassette
tape drive used by the HP 9830
) to the right of the CRT in a single, desktop-sized housing. All models included a GPIB
parallel bus interface for controlling lab and test equipment and external input and outout peripherals. A simple operating system
and BASIC interpreter
were included in ROM. A hard copy device was available which made copies of the screen.
External storage units were available for the 405x series computers. The smaller, desktop 4907 storage unit used single or dual Shugart
851R 8 inch floppy drives
with 64 kilobyte floppies and the larger, 2-drawer filing cabinet sized, 4909 storage unit used a CDC 96 megabyte hard drive with the first 16 megabytes in the form of a removable disc-pack. A 4924 external tape drive used the same tape cartridges as the in-board unit.
The 4050 series was popular at a time when many companies were struggling to make the transition from paper to digital. Two sizes of the 4956 graphics tablet offered a slow process for inputing from paper... Read More