Divided into two sections, this report outlines several components of computer based instruction in the composing process. The first section, which focuses on the use of computers in editing, generating ideas, and producing text, presents a users' manual for composition instruction on a microcomputer, a general description of how computer based practice in editing might operate, an outline of heuristics used to generate ideas for descriptive writing, and specifications for interactive computer based composing of narratives. It includes samples of how such programs might accommodate specific content. The second section focuses on the use of computers for drill and practice in basic mechanical skills. After outlining this supplementary instruction, the section provides a sample program reinforcing capitalization and punctuation skills through practice in addressing envelopes. The report concludes with extensive appendixes, including (1) descriptions of other computer instruction programs, (2) reports on professional meetings, (3) a book review, (4) courseware reviews, (5) a discussion of microcomputer systems, (6) a proposal for an elementary school composition progam, and (7) a copy of a discussion of computers, word processors, and composition instruction printed in a college publication. (MM)