Designed as a self-teaching tool for those who have had no experience with computers and who are seeking an understanding of the microcomputer, this set of lesson cards teaches the beginner how to write simple computer programs in the BASIC language. The learner is also taught to (1) determine what computers can and cannot do; (2) load a tape or disk; (3) use the computer as a calculator; (4) correct mistakes by backspacing, deleting, and using cursors; (5) use all of the keys on the keyboard; (6) write a simple program to solve arithmetic problems; and (7) record and save a program. The lessons apply to most microcomputers; two of the cards specifically apply to a Commodore microcomputer. A set of worksheets and an answer key accompany the cards along with a glossary of computer terminology. Teaching suggestions for using these cards in a scheduled computer class are made. Student behavioral objectives are listed and three computer user's tests are provided. (JH)