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Are you Harry Katzan Jr., author of the books below?
Invitation to FORTH by Harry Katzan Jr. The IBM 5100 portable computer by Harry Katzan Jr. Microcomputer Graphics and Programming Techniques by Harry Katzan Jr. The Day After the Night Before by Harry Katzan Jr. Computer systems organization and programming by Harry Katzan Jr. Advanced Programming by Harry Katzan Jr. The standard data encryption algorithm by Harry Katzan Jr. Operating Systems by Harry Katzan Jr. Invitation to Ada by Harry Katzan Jr. Quality Circle Management by Harry Katzan Jr.


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