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The Legacy Of The ADM-3A Terminal

ADM-3A terminal

The development of the vi editor started in 1976. The very same year the ADM-3A terminal shipped.

ADM-3A terminal's keyboard

This text editor famously uses HJKL to move around a file. Bill Joy chose those keys because of the ADM-3A terminal’s keyboard. Notice the directional arrows on those keys. Forty two years later, a variety of softwares, like Vim, still use HJKL.

Additionally, did you notice the tilde on the Home key? This is why the ~ character represents the home directory in Unix-like operating systems.

Posted on 2018-01-22   #vi     #history  

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