How they made the graphics for the first operating system as they couldn use a graphic software?
wow, good question! In the old days, we used ASCII text to make simple pictures, like the StarTrek Enterprise spaceship using just text characters and non-character based ASCII symbols. They would have all the graphical coordinates, but using only letters and numbers on the terminal screens. In 1984, university grad students would use a video camera to scan a picture of the Mona Lisa, convert it into numbers for each shade of gray and print an ASCII letter or symbol to match the ‘gray’ value of the picture. If you stare at it from 20 feet away, it looks just like a real picture (printed on paper). Graphic software always exists even when terminal don’t display graphics. The output were considered VECTOR output devices like pen-plotters or laser engraving for General Electric blue-prints for jet engines. Intergraph provided actual graphics terminals display to do engineering design, but the operating system itself was NOT a graphical OS. So, to boot-strap a new operating system that doe
