The VT50 is a CRT -based computer terminal that was introduced by Digital Equipment Corporation (DEC) in July 1974. It provided a display with 12 rows and 80 columns of upper …

2023年10月2日 · The DEC VT50 terminal is a variant of the VT52 that only provides upper case and has only 12 lines. It was announced on July, 1974 at a price of $950 in quantities of 100.

The VT50 series video terminals function as two devices in one: They act as INPUT DEVICES by which a human operator enters information into electronic equipment, and they act as …

The VT50 was an uppercase-only subset of the VT52 with only 12 lines. The VT55 has a primitive graphics capability, somewhat misleadingly referred to as “waveform graphics”.

On the VT50, the BREAK and CTRL keys are pulled out as separate active-low signals. The VT50H added a number pad and so needed another couple rows. The CTRL signal was …

https://www.youtube.com/watch?v=nb2bxaj79rcVT50是一款基于CRT的计算机终端，由数字设备公司 (DEC) 于 1974 年 7 月推出。 它提供了 12 行 80 列大写文本的显示屏，并使用了基于早 …

The VT50 series was a successor to the first DEC-made glass TTY, the VT05. The VT50 was announced in 1974 and provided 12 lines of 80 column text. It handled a limited set of control …

VT50 VIDEO TERMINAL to programming the VT50 Video Terminal. The first segment gives the novice user step-by-ste instructions on fundamental operation. If you are already familiar with …

APPENDIX A CARE AND HANDLING OF CATHODE RAY TUBES (CRTS) When servicing or replacing CR Ts or CR T assemblies in VT50 or VT52 terminals observe the following pro …

2017年7月6日 · The VT52 is a microprogrammed design. Not any standard microprocessor or the like in it. The microprogram ROMs are socketed. The sockets often go bad. Small problems in …