Discussion of computer input devices focuses on the keyboard, mouse, and touchscreen. Related research is reviewed concerning user preference and performance; advantages and disadvantages of each device are described; guidelines for selection are discussed; and suggestions for future research are offered. (19 references) (LRW)

Three types of rapid message composition for non-speaking persons, classified according to keyboard, are described: sequential keyboard, "semantic" input through iconic representation, and chord keyboard. The strengths, drawbacks, and potential of each type are discussed for a user population with good keying ability and normal cognitive and…

Forty developmentally delayed and 40 non-delayed kindergarten children completed an alphabet matching task and a spelling task using 2 different computer input devices: a traditional computer keyboard and a touch-sensitive computer screen. The touch-sensitive screen generally improved the performance of both groups. (Author/JDD)

This review examines electronic braille input-output devices which have a braille keyboard for data entry and/or a braille display. Four braille notetakers and two braille computer systems are evaluated, commenting on their keyboards, ease of use, documentation, and analysis of speech and/or the braille display. (JDD)

This paper summarizes selected findings on approaches to increasing the rate of communicatively appropriate responses in augmentative and alternative communication. Six approaches--efficient keyboard layouts, reduced keys keyboards, Minspeak with Words Strategy, enlarged keys keyboards, abbreviation expansion, and lexical prediction--are reviewed…

This paper reports on a research and development program which developed a more effective interface between personal computer (PC) users with disabilities and computer systems. The program emulates a PC keyboard, enabling disabled PC users to access standard software via a binary (switch) control element. (Author/DB)

Reports on a study of the ability of preschoolers and first, second, and third graders to use three computer input devices: a joystick, a mouse, and a keyboard. For all grade levels, the mouse offered the greatest ease of use in manipulating icons, followed by the joystick and the keyboard. No effect for gender was found. (Contains 30 references.)…

Using manual, hardware, and software adaptations, teachers are able to use computer-based educational programing with learning-disabled students who have physical handicaps. This paper describes such technology as keyguards, alternative keyboards, scanning systems, switches, and spelling and grammar checkers. (JDD)

This continuation of an earlier article that described computer-based speech recognition products focuses on future hardware and software predictions. Highlights include effects that speech input/output could have on teaching language arts in elementary and secondary schools; changes in thought processing factors; use by the physically…

Describes a study of students at Purdue University that examined the roles of gender, right- versus left-handedness, and mouse experience in preferences concerning the placement of icon buttons within hypermedia user-interface designs. Response rate is examined, order of presentation is discussed, and further research is suggested. (11 references)…