AAC (Advanced Audio Coding) correct answers a file format that provides highly compressed
audio files with very little loss of sound quality and is promoted by Apple on its iTunes website
ALU (Arithmetic Logic Unit) correct answers The part of the CPU that performs arithmetic and
logical operations on the numbers stored in its registers
ARPANET (Advanced Research Projects Agency Network) correct answers One of the first
packet switching computer networks using TCP/IP and the prototype for the internet
ASCII (American Standard Code for Information Interchange) correct answers A code that
represents characters as a series of 1s and 0s. Most computers use ASCII code to represent text,
making it possible to transfer data between computers
Bandwidth correct answers The data transmission capacity of a communications channel. Digital
signals are measured in bits per second; analog signals in hertz.
Binary correct answers The representation of data using two states, such as off-on or 1-0.
BMP (bump or bitmap image) correct answers The native bitmap graphics file format of
Microsoft windows
BN (binary number) correct answers A method for representing numbers using only two digits: 0
and 1. Contrast to the decimal number system, which uses ten digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, and
9.
Broadband correct answers A term used to refer to communications channels that have
bandwidth that equals or exceeds 25 Mbps.
, CISC (Complex Instruction Set Computer) correct answers A general-purpose microprocessor
chip designed to handle a wider array of instructions than a RISC chip.
Audio compression correct answers Techniques used to reduce the size of files that contain audio
data
Compression ratio correct answers A ratio such as 5:1 indicating the amount of compression that
has been applied to a file. High compression ratios such as 35:1 indicate more compression so
data can be contained in smaller files
Data compression correct answers the process of shrinking the size of a file by removing data or
recording it more efficiently
image compression correct answers any technique that is used to reduce the size of that is used to
reduce the size of a file that holds a graphic
inter-frame compression correct answers shrinking the size of a video by removing redundant
data that is the same in two successive frames
intraframe compression correct answers in a digital video, compression that takes place within a
single frame, similar to the compression used for still images
lossless compression correct answers a compression technique that is able to reconstitute all of
the data in their original file; hence lossless means that this compression technique does not lose
data
lossy compression correct answers any data compression technique in which some of the data is
sacrificed to obtain more compression
Core correct answers individual processor within CPU.