Two basic data processing concepts are described: data elements (consisting of bits, bytes, fields, records, and files) and binary characters (standards, hex value, and extended character sets--Greek letters, superscripts, and subscripts). Use of machine-readable data in the OCLC-MARC database is noted. (EJS)

Defines and describes the components and functions that constitute a microcomputer--bits, bytes, address register, cycle time, data path, and bus. Characteristics of 8-, 16-, and 32-bit machines are explained in detail, and microprocessor evolution, architecture, and implementation are discussed. Application characteristics or types for each bit…