How were images, apps, letters, and etc able to be put on the first ever computer screen?
Today if you buy a new device it already has images, numbers, text, and etc. and if you want to add images or make anything in general, you can do it with pre existing software and with the assistance from a computer screen. I could see that maybe the people who made the first ever computer screen had help from pre existing computers but how did they go about doing this? Did they manually put 1’s and 0’s into the hard drive? Is it magic?
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Prior to the time the first image scanner was designed in late 50s they hardly used displays to output images. Early displays output images of a fixed number of monochrome characters. A character image is just an 8×8 bit matrix. You draw it on paper and convert to 64 bits. They didn’t put those images into a hard drive (those didn’t even exist at that time). The display manufacturer would put them in the read-only memory of what we call these days a graphics card. Computer would send codes of characters to the “graphics card” to display.
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