Great computers I have Known (Computer architecture)

Before arriving at Carnegie Institute of Technology in 1966, the author knew computers existed, but had never seen one. There might have been some in his home town, in the banks, and the larger factory's. Carnegie went on the become Carnegie-Mellon University, and the author learned about mainframes and minicomputers. After graduating, he got a job in Aerospace, and learned that they put computers on satellites! He got into personal computers, and, as I type, never got away from them. In spite of all the interesting computers, the author managed to graduate. The author's first computer experience was on a Bendix G-20 mainframe, a 32-bit machine, using the Algol language. His first assembly language was on an IBM S/360 mainframe, specifically the Model 67 variant, with virtual memory. He went on to program the Univac 1108 series mainframe (a 1's complement machine), the DEC PDP-8, 9, 10, and 11, the Bendix G-15, the Athena Missile Guidance Computer by Sperry Rand and many more. The concept of a personal computer was, at the time, ludicrous. I have touched, used, and occasionally broken every computer in this book.