The Z80 was the chip in the original Radio Shack TRS-80 computers. I got one back in 1979, when I was 15 years old. I had a book on the Z80, the text in this

The Z80 was the chip in the original Radio Shack TRS-80 computers. I got one back in 1979, when I was 15 years old. I had a book on the Z80, the text in this article brings back memories, and figured out how to do some simple machine language programming. Mostly simple graphics programs, storing values to the TRS-80's display memory buffer. Eventually I got the TRS-80 Assembler that made things a bit easier. I can't remember now how I actually input the machine language hexadecimal without using that assembler, but I'm sure I did. Or maybe not, my memory is sometimes not so reliable on these things, even when I feel certain. I can hardly imagine how different things must be now for young kids growing up in internet era, where everything is at your fingertips. Information was much more difficult to get back in the old days, traveled much more slowly. But, still, kids had the energy to figure things out.