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ADM3a was a terminal, not a computer. I used to use these two in around 1976 or so. And the hjkl pattern has nothing to do with this or any other terminal. The
by wavetossed 15y ago
ADM3a was a terminal, not a computer. I used to use these two in around 1976 or so. And the hjkl pattern has nothing to do with this or any other terminal. The ASCII control codes for Ctrl-H, Ctrl-J, Ctrl-K and Ctrl-L were used to make the Teletype's printing carriage move left, down, up or right. Bill Joy's innovation was "modes" so that Ctrl-H did not delete the character when it moved left, etc...
- fanf2 15y ago8 H backspace 9 I tab (right a lot) 10 J line feed (down) 11 K vertical tab (down a lot) 12 L form feed (down a page) 13 M carriage return (left a line)
- kragen 15y agoBill Joy didn't invent modes; all editors were very modeful until Bravo, in the 1970s. And in vi, you don't use ^H to move left; you use h. Tony has already corrected you on ^K and ^L, but I'll point out that there was a way to move the carriage right on a Teletype, even though it wasn't ^L: the SPACE character does that.