dictionary of multimedia and internet applications: a guide for developers and users. francis botto

Print ISBN 0-471-98624-0 Online ISBN 0-470-84178-8

RAD tool (Rapid Application Development tool) A development tool

that expedites application development. Its identity hinges on a number of identifying features, which may include:

● authentic object-oriented programming (OOP) ● visual programming methodologies ● industry-standard component architectures such as ActiveX or Java-

Beans

● useful program libraries

● features that are appropriate to the collaborative team development

environment. These may include security features that can be used to

provide team members with access rights to objects so that they may be

developed.

(See ActiveX*, C++, Java* and Visual Basic.)

Radio button A series of buttons in which only one may be selected at a

time.

RAID (Redundant Array of Independent Disks) A mass storage device that has many individual disks. Identifying features of RAID may include:

● high levels of fault tolerance

● scalability through the addition of hard disks ● hot-swappable disks, meaning they may be removed and replaced

without the need to power down the RAID

● redundant power supplies for improved fault tolerance ● shared mass storage, serving disparate computers/networks ● heterogeneous characteristics, where they may be integrated into

environments comprising multiple OSes

● high speed interfaces such as Fibre Channel and Ultra SCSI.

The original RAID specification originated in UC Berkeley in 1987, and

273