| Computer Glossary |
QBE (Query By Example):- A database inquiry method in which the user forms a query by filling in a table with examples of the requested
information.
QWERTY:- Name of the standard American-English keyboard. The letters keys in the top row from left to right are "Q-W-E-R-T-Y," hence
the name.
Radio Button:- A round control that can be selected or cleared.
RAM:- Random Access Memory. One of two basic types of memory. RAM is memory that you can add to, retrieve from, or alter at will.
RAM Drive/Disk:- Also called a virtual drive. Memory set up by a device driver, such as RAMDRIVE.SYS, to simulate a disk drive. RAM
drives are very fast, but data in a ram drive is lost when the computer is turned off or reset.
Read Only:- An attribute of a file that prevents it from being deleted or its contents from being modified.
Real Audio:- A software system produced by Progressive Networks used for playing sound files in real time over the Internet.
Real Time:- Happening at that moment, no delay.
Reboot:- To reload the operating system.
Record:- A section of information in a database. For example, a record in a real estate database might contain information about a home,
such as the location, price, year built, owner, etc.
Referential Integrity:- Rules in a database that you follow to preserve the defined relationships between data files or tables when you
enter or delete records.
Refresh:- To redisplay the information on the screen to reflect changes and indicate deletions that other users in a multiuser environment
have made or that you have made elsewhere.
Relational Database:- A database which can interrelate multiple databases or tables.
Repeater:- A device used in networks to extend cabling distances by amplifying or regenerating signals.
Replicate:- The process of creating and synchronizing replicas of data or files in separate locations.
Resolution:- Indicates the number of dots (or pixels) that make up an image on a screen or printer. The higher the resolution, the finer and
smoother images can appear when displayed at a given size.
RISC (Reduced Instruction-Set Computing):- A microprocessor architect design that favors the speed at which individual instructions
execute over the robustness of the instruction set.
ROM (Read-Only Memory):- Memory which cannot be altered by the computer operator. It can be transferred out, but not transferred in.
ROM contains only permanent information put there by the manufacturer.
Root Directory:- The main directory (folder) on a disk.
Router:- A system responsible for making decisions about which of several paths network or Internet traffic should follow.
RTF (Rich Text Format):- A word processing file standard that allows text enhancements. RTF attempts to maintain some aspects of
document formatting during transfers and conversions.
Run Time:- The time during which an application is running.
Run-Time Error:- An error that occurs when an application is running.
information.
QWERTY:- Name of the standard American-English keyboard. The letters keys in the top row from left to right are "Q-W-E-R-T-Y," hence
the name.
Radio Button:- A round control that can be selected or cleared.
RAM:- Random Access Memory. One of two basic types of memory. RAM is memory that you can add to, retrieve from, or alter at will.
RAM Drive/Disk:- Also called a virtual drive. Memory set up by a device driver, such as RAMDRIVE.SYS, to simulate a disk drive. RAM
drives are very fast, but data in a ram drive is lost when the computer is turned off or reset.
Read Only:- An attribute of a file that prevents it from being deleted or its contents from being modified.
Real Audio:- A software system produced by Progressive Networks used for playing sound files in real time over the Internet.
Real Time:- Happening at that moment, no delay.
Reboot:- To reload the operating system.
Record:- A section of information in a database. For example, a record in a real estate database might contain information about a home,
such as the location, price, year built, owner, etc.
Referential Integrity:- Rules in a database that you follow to preserve the defined relationships between data files or tables when you
enter or delete records.
Refresh:- To redisplay the information on the screen to reflect changes and indicate deletions that other users in a multiuser environment
have made or that you have made elsewhere.
Relational Database:- A database which can interrelate multiple databases or tables.
Repeater:- A device used in networks to extend cabling distances by amplifying or regenerating signals.
Replicate:- The process of creating and synchronizing replicas of data or files in separate locations.
Resolution:- Indicates the number of dots (or pixels) that make up an image on a screen or printer. The higher the resolution, the finer and
smoother images can appear when displayed at a given size.
RISC (Reduced Instruction-Set Computing):- A microprocessor architect design that favors the speed at which individual instructions
execute over the robustness of the instruction set.
ROM (Read-Only Memory):- Memory which cannot be altered by the computer operator. It can be transferred out, but not transferred in.
ROM contains only permanent information put there by the manufacturer.
Root Directory:- The main directory (folder) on a disk.
Router:- A system responsible for making decisions about which of several paths network or Internet traffic should follow.
RTF (Rich Text Format):- A word processing file standard that allows text enhancements. RTF attempts to maintain some aspects of
document formatting during transfers and conversions.
Run Time:- The time during which an application is running.
Run-Time Error:- An error that occurs when an application is running.
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