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INSY 2303 EXAM 1 STUDY GUIDE
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INSY 2303 EXAM 1 STUDY GUIDE
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INSY 2303 EXAM 1 STUDY GUIDEAAC - Answers- Advanced Audio Coding
A file format that provides highly compressed audio files with very little loss of sound
quality and is promoted by Apple on its iTunes Web site.
ALU - Answers- (Arithmetic Logic Unit) The part of the CPU that performs arithmetic
and logical operations on the numbers stored in its registers.
ARPANET - Answers- (Advanced Research Projects Agency Network) One of the first
packet switching computer networks using TCP/IP, and the prototype for the Internet.
ASCII - Answers- (American Standard Code for Information Interchange) 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 - Answers- The data transmission capacity of a communications channel.
Digital signals are measured in bits per second; analog signals in hertz.
Binary - Answers- The representation of data using two states, such as off-on or 1-0.
BMP - Answers- Bitmap
The native bitmap graphics file format of Microsoft Windows.
BN - Answers- Backbone Network
high-speed network that connects many networks.
Broadband - Answers- A term used to refer to communications channels that have
bandwidth that equals or exceeds 25 Mbps
CISC - Answers- (complex instruction set computer) A general-purpose microprocessor
chip designed to handle a wider array of instructions than a RISC chip.
Compression Types - Answers- losless: refers to compression in which the image is
reduced without any quality loss
lossy: able to reduce a file down to a much smaller file size than lossless, due to the
nature of how it works.
Core - Answers- A core is part of a CPU that receives instructions and performs
calculations, or actions, based on those instructions. A set of instructions can allow a
, software program perform a specific function. Processors can have a single core or
multiple cores.
CPU - Answers- Central Processing Unit
The main processing circuitry, or "chip," within a computer that contains the ALU, control
unit, and registers.
A format that uses lossy compression to store bitmap images. JPEG (pronounced "JAY-
peg") files have a .jpg extension.
LAN - Answers- Local Area Network: An interconnected group of computers and
peripherals located within a relatively limited area, such as a building or campus
Laser Printer - Answers- A printer that uses laser-based technology, similar to that used
by photocopiers, to produce text and graphics.
LCD - Answers- Liquid Crystal Display
Technology used for flat panel computer screens typically found on laptop computers.
LED - Answers- Either a display technology that uses LEDs to produce an image on the
screen, or one that uses LEDs as backlighting.
MAC address - Answers- A unique identifier similar to a serial number assigned to
networking equipment at the time of manufacture.
Machine Language - Answers- A low-level language written in binary code that the
computer can execute directly.
Magnetic Storage - Answers- A technology for recording data onto disks or tape by
magnetizing particles of an oxide-based surface coating.
MAN - Answers- (Metropolitan Area Network) is a computer network that interconnects
users with computer resources in a geographic area or region larger than that covered
by even a large local area network (LAN) but smaller than the area covered by a wide
area network (WAN).
Microprocessor Clock - Answers- A timing signal that sets the pace for executing
instructions in a microprocessor.
MIDI - Answers- Musical Instrument Digital Interface
A standardized way in which sound and music are encoded and transmitted between
digital devices that play music.
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