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COMPUTING GLOSSARY > B > Flashcards

Flashcards in B Deck (32):
0

Backing storage

X

1

Backup schedule

X

2

Backup server

X

3

Backup strategy

X

4

Bandwidth

Bandwidth describes the amount of data which can be transmitted via a network connection, usually measured in bits per second.

5

Bandwidth consumption

X

6

Bi-Directional

Transfers data in both directions.

7

Binary number system

A system in which numbers are represented using only the digits 0 and 1.

8

Bit

A single unit of binary data.

9

Bit-depth

The number of bits used to represent each pixel.

10

Bitmap

A representation of image data where each bit corresponds to an individual pixel on the screen.

11

Bitmap graphics

X

12

Bitmap - 24-bit

X

13

Bit-mapped graphic data

X

14

Bluetooth

Bluetooth is a wireless networking protocol which allows devices to connect together to provide services like Internet access, printing and data transfer without the intervention of the user.

15

Boolean variables

Two-state algebra developed by George Boole.
X

16

Boot Program

A small program held in ROM that is executed when the computer is powered up.

17

Boot sector virus

X

18

Bootstrap loader

X

19

Breadth-first search

X

20

Broadcasting

Broadcasting over a network uses the User Datagram Protocol which does not require an acknowledgment. This is a more efficient use of bandwidth than individual downloads.

21

Browser

Software used to render HTML pages.

22

Bubble Jet Printer

Operates by heating the ink until it forms a vapourised bubble which is then squirted as a tiny droplet of ink onto a page.

23

Buffer

A part of memory used to hold data when communicating with a peripheral. Used when a fast acting part of the system (CPU) is exchanging data with a slow acting device (printer).

24

Bus Network

Each device on the network is directly connected to a single communications line.

25

Bus topology

X

26

Byte

Eight units of binary data (bits).

27

Beta testing

Testing of software outside the development organisation using clients or selected members of the public.

28

Bottom-up design

A method of program refinement that starts with individual modules and builds them up into a complete program.

29

Boundary testing

Running a program with test data that represents the extreme upper and lower values.
Within this range the program should operate normally.

30

Bugs

A bug is a program error.

31

Bytecode

This is produced by JavaScript and is a form of machine code that runs under the Java virtual environment.
The latter is freeware and enables any computer to run Java programs