INSY 2303 Exam 1 UTA exam questions and answers.

AAC (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 (Arithmetic Logic Unit) The part of the CPU that performs arithmetic and logical operations on the numbers stored in its registers. Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:00 / 0:15 Full screen ARPANET (Advanced Research Projects Agency Network) One of the first packet switching computer networks using TCP/IP, and the prototype for the Internet. ASCII (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 The data transmission capacity of a communications channel. Digital signals are measured in bits per second; analog signals in hertz. Binary The representation of data using two states, such as off-on or 1-0. BMP (File Extension .bmp) The native bitmap graphics file format of Microsoft Windows. BN (Backbone Network) high-speed network that connects many networks. Broadband A term used to refer to communications channels that have bandwidth that equals or exceeds 25 Mbps. CISC (Complex Instruction Set Computer) A general-purpose microprocessor chip designed to handle a wider array of instructions than a RISC chip. Compression Types Core 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 (Central Processing Unit) The main processing circuitry, or "chip," within a computer that contains the ALU, control unit, and registers. Data Bus An electronic pathway or circuit that connects electronic components (such as the processor and RAM) on a computer's system board. Device Driver A type of system software that provides the computer with the means to control a peripheral device. DNS Spoofing (Domain Name System) A malicious attack on the domain name system in which the IP address corresponding to a Web site is changed in order to redirect users to different locations. Dynamic Address Temporarily assigned IP addresses usually provided by an ISP. Form Factor The configuration of a computer's system unit; examples include tower, mini-tower, and cube. GIF (Graphics Interchange Format) A bitmap graphics file format, popularized by CompuServe, for use on the Web. Handshake A process where a protocol helps two network devices communicate. IPv4 (Internet Protocol version 4) Internet addresses that are 32-bit IP addresses. (Base 10) IPv6 (Internet Protocol version 6) Internet addresses that are 128-bit IP addresses. (Base 16) JPEG (Joint Photographic Experts Group) A format that uses lossy compression to store bitmap images. JPEG (pronounced "JAY-peg") files have a .jpg extension. LAN (Local Area Network) An interconnected group of computers and peripherals located within a relatively limited area, such as a building or campus. Laser Printer A printer that uses laser-based technology, similar to that used by photocopiers, to produce text and graphics. LCD (Liquid Crystal Display) Technology used for flat panel computer screens typically found on laptop computers. LED (Light Emitting Diode) Either a display technology that uses LEDs to produce an image on the screen, or one that uses LEDs as backlighting. MAC address (Media Access Control Address) A unique identifier similar to a serial number assigned to networking equipment at the time of manufacture.