With the release of Google's App Inventor for Android, though still officially in beta, the company sought to make app development "simple but powerful" so that teachers could create study tips and quizzes, anyone could create geographic information systems (GIS) to help people find their way to some destination, and people could communicate over…

Introduction to use of compact disk technology for storing digital data highlights history, background, and developments; technical features; standardization issues; current CD ROM applications; and the market for CD products. A production diagram, a sampling of CD manufacturers and disk replicators, and performance comparison of three storage…

Discussion of CD-ROM and DVD (Digital Video Disk)-ROM covers CD-ROM software pricing and industry changes; CD-ROM drives; CD-recordable formats; DVD formats, hardware, and software; recordable DVD; and future issues, including standards, Windows 98, the DVD market, and compatibility. A sidebar lists Web sites with information on CD-ROM and…

This current overview of optical disk technology describes the evolving marketplace for optical products, the use of libraries as test sites for prototype CD-ROM (compact disk read-only-memory) products, CD-ROM developments, new optical technologies, and advances in magnetics. A list of some compact disk manufacturers and a glossary of terms are…

Interview with a computer scientist for the U.S. Geological Survey focuses on CD-ROM as a medium for publishing, disseminating, and archiving government data; the private sector's role in producing value-added CD-ROM products; and SIGCAT (Special Interest Group for CD-ROM Applications and Technology), a free CD-ROM user group. (NRP)