How was the first computer programmed? With what? How does it know 1 means yes and 0 means no?
In: Technology
The first computers were really simple. The earliest microprocessors could be programmed by switches and buttons. You would arrange one set of switches for a memory address, and another set for the contents you wanted to write. Press a button and it would put that pattern into memory. Output was similar, a series of LEDs, one group for memory, one for contents of that memory.
Every generation of computers was programmed using the previous generation of computers. Those switches and LEDs were used to allow input from a keypad and output to a numeric display. Keypad and numeric display was used to program a keyboard and a alphanumeric display.
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