Describes electrical power problems that affect computer users, including spikes, sags, outages, noise, frequency variations, and static electricity. Ways in which these problems may be diagnosed and cured are discussed. Sidebars consider transformers; power distribution units; surge currents/linear and non-linear loads; and sizing the power…

Comparison of dot matrix impact printers details price, matrix density, speed, print sizes, feed width, interface connectors, and true descender characteristics. Dot matrix versus preformed characters, maintenance and repair, installing printers at microcomputer workstations, value comparisons, and descriptions of specific printers are…

Discusses major features of microcomputers (word length, memory, size, disk size and capacity, central processing unit speed, peripherals, software) and provides descriptions of 19 models. Comparative analysis on basis of cost, software support, machine capacity, storage capacity, and types of peripherals is presented. A 173-item bibliography is…

Description of the Kurzweil Reading Machine, which uses a special camera and computer to transform printed matter into synthetic speech; includes reading and sound production, machine operation, adjusting to different typefaces, and limitations. Review of the portable reading aid for the partially sighted, Viewscan, discusses characteristics,…

Reviews attributes of laser discs and "traditional" objections to use of audiovisual materials. Use of authoring systems as means of tailoring laser disc programs and updating aging materials is described. Flexibility and power of the Video Nova Authoring System is explained and illustrated and the SONY SMC-70 microcomputer is evaluated.…

Bibliographic essay presents citations to recent books and articles dealing with problems of providing library services to the disabled, particularly the visually impaired, and to sources that describe technological equipment in detail. Ways to identify libraries that use the equipment to obtain evaluative information are suggested. Twenty-two…

Details a series of tests conducted by the Research Libraries Group, Inc., to evaluate IBM clones i.e., computers designed to use hardware and software originally intended for IBM microcomputers. The results of evaluations of several personal computers, using the criteria of performance, aesthetics, ergonomics, and documentation, are reported.…

Compares and contrasts two systems designed for library automation applications--NOTIS, which was developed in the United States, and DOBIS, which was developed in Europe. The differences in the systems are discussed in terms of the availability or absence of machine readable bibliographic sharing capacities in the countries of origin. (CLB)