All about hand-held and briefcase-portable computers : how to use them for business and personal work / C. Louis Hohenstein. Hohenstein, C. Louis (Charles Louis), 1930- Pocket computers. Laptop computers. QA76.5 .H625 1984 001.64 21 H718a Includes bibliographical references and index. New York : McGraw-Hill, c1984. c1984. 1984 Text xi, 368 p. : eng A Byte book Byte books.