wow this was released in 1979 was the internet discovered back then http://oldcomputers.net/atari400.html
My neighbour had a ZX Spectrum, and you had to load the programs (mainly video games) by playing them on a cassette tape recorder. My own first computer was an Intel 8088-based PC. 3.5 MHz. Digger rocked on it, baby! And it had a Turbo button that I was afraid to touch. I think that made it go up to a scorching 8 MHz or so. Yeah baby!! I tried to write my own programming language in machine code (no, not assembly; raw machine code) on it. That rewarded me with a pair of spectacles! Then I discovered MASM and later, Turbo C . Turbo C had a menu system. It had a frigging profiler, holy fuck! I coded a TSR (terminate and stay resident) program that would give you the dictionary definition of any word on the screen, irrespective of what program was running (no multi-tasking, remember? You had to trap an interrupt for this). Oh man, stuff was fun in 1990.