The Citizen 120D + printer is designed to be like two printers in one. It can act just like an Epson FX or Epson LX printer, or, with the flip of a switch, it can act just like an IBM Graphics Printer. And the Epson FX/ LX configuration has two different combinations of printer functions! The standard tractor-feed mechanism can be installed and removed in seconds.

In metal suit case offered by institute Scheidegger when following secretary courses.

Made by the Concord Instrument Division in California

with keyboard Z01465300H

The VT100 is the second generation of video display terminal from DEC. The predecessor is the VT52 terminal. The successor was the widely used VT220 terminal. Early graphics terminals are the monochrome GT40 and later the VT240 color terminal.

Since the human eye is most sensitive to light in the green band of the electromagnetic spectrum, each pixel contains two green elements in an RGGB configuration to enhance the apparent brightness of the display at long distances.

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MSX was the first industry standard for home computers to be independent of the hardware manufacturer. However, it was not generally accepted, but it is embraced by manufacturers such as Philips, Sanyo, Panasonic and Sony. The good relationship between ASCII and Microsoft in the 1980s led to the introduction of the MSX standard in June 1983. During the development, according to creator Kazuhiko Nishi, the team used the Machines with Software eXchangeability (machinery with interchangeable software),[2][3] although the MicroSoft eXtended explanation was also used by Microsoft’s interpretation.

The printer provides two types of interfaces:
1. Centronics pararallel interface
2. RS2322C serial interface