![]() a BASIC interpreter) from a connected serial terminal or teletype. One can also use the front panel to key in a small boot loader that will load a program (e.g. ![]() CP/M from disk, one had to set the program counter to the disk ROM address. The Altair could be programmed via its front panel (16 address LEDs and 8 data LEDs and accompanying toggle switches). Later there were also 8" disk drive adapter cards and graphics cards that could show color graphics on a screen. In the beginning, an Altair was usually controlled via a 110-baud teletype (usually with a punched tape reader and punch for saving and loading data). the CPU and memory were on separate cards. The Altair mainboard had no ICs at all, just S-100 bus (100-pin) edge connectors, so e.g. ![]() It was sold in kit form and fully assembled and had a characteristic front panel with LEDs. The Altair 8800 was an American 8080-based microcomputer introduced in 1975 that is considered the first widely popular home computer.
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