Random-access memory  

Volatile, temporary storage that holds the program and data the CPU is presently processing. It is called temporary storage because its contents will be lost if electrical power to the computer is disrupted or the computer is turned off.

Range  

A selection consisting of two or more cells in a worksheet.

Record  

Each row of information in a database is a record. Each record contains fields of data about some specific item, like employee name, address and phone, etc. A record represents a collection of attributes describing an entity.

Relational database  

A widely used database structure, in which data is organized into related tables. Each table is made up of rows called records and columns called fields. Each record contains fields of data about a specific item.

Replace  

In word-processing, a command enabling the user to search for a word and replace it with another. Click Edit, find.

Row  

A horizontal block of cells one cell high all the way across the worksheet.

Ring network  

Network in which each device is connected to two other devices, forming a ring. There is no host computer, and messages are passed around the ring until they reach the correct destination.