An introduction to personal and business computing / Rodnay Zaks. Zaks, Rodnay. Microcomputers. Business Data processing. QA76.5 .Z328 658.054 ZAI On spine: C200. Second ed. published in 1980 under title: Your first computer. Includes index. Berkeley, CA : SYBEX, c1978. c1978. 1978 Text 245 p. (p. 244-245 advertisements) : eng