UTA INSY 2303 Final Exam Review (Units 1-4)
Convergence
The expansion of cloud computing, a process by which several technologies with distinct functionalities evolve to form a single product. Your computer plays movies. Your cell phone has a camera. Your clock has a radio.
Cloud computing
A ...
UTA INSY 2303 Final Exam Review
(Units 1-4)
Convergence
The expansion of cloud computing, a process by which several technologies with
distinct functionalities evolve to form a single product. Your computer plays movies.
Your cell phone has a camera. Your clock has a radio.
Cloud computing
A process that provided access to information, applications, communications, and
storage over the Internet.
Digital data
Text, numbers, graphics, or sound represented by discrete digits, such as 1s and 0s.
Analog data
Data that is measured or represented on a continuously varying scale, such as a
dimmer switch or a watch with a sweep second hand.
Compression
Any technique that recodes the data in a file so that it contains fewer bits
Lossy compression
Any data compression technique in which some of the data is sacrificed to obtain more
compression.
Lossless compression
A compression technique that is able to reconstitute all of the data in the original file;
hence lossless means that this compression technique does not lose data.
Compression is commonly referred to as "zipping".
True
On laptops and desktop computers, the compression utility is accessed from the
same screen used to manage files.
True
Pixel interpolation
A process that is used by graphics software to average the color of adjacent pixels in an
image, usually when the image is enlarged.
Data
In the context of computing and data management, data refers to the symbols that a
computer uses to represent facts and ideas.
Information
A computer system that collects, stores, and processes information, usually within the
context of an organization.
Bitmap
An image, such as a digital photo, that is stored as a grid work of colored dots.
A bitmap graphic is composed of a grid of tiny rectangular cells where each cell
is a picture element, commonly called a pixel.
True
Vector graphics include standard shapes such as circles and rectangles.
, True
Vector graphics
An image generated from descriptions that specify the position, length, and direction in
which lines and shapes are drawn.
Vector graphics vs. Bitmap graphics
Vector graphics resize better than bitmaps, require less storage space, are not as
realistic as bitmap images, and editing an object is easier than in bitmap.
Vector graphics are used for line art, logos, simple illustrations, infographic
elements, and diagrams.
True
_______ are based on vectors stored as a set of instructions describing the
coordinates for lines and shapes in a three-dimensional space.
3-D graphics
Ray tracing
A technique by which light and shadows are added to a 3-D image.
Rendering
In graphics software, the process of creating a 3-D solid image by covering a wireframe
drawing and applying computer-generated highlights and shadows.
Vectors
Lines and curves that form simple shapes.
Vectors form a wireframe that works like the framework for a tent.
True
Software
The instructions that direct a computer to perform a task, interact with a user, or process
data.
Application software
A set of computer programs that help users perform a specific task such as word
processing.
The primary purpose of _______ is to help the computer system monitor itself in
order to function efficiently (an example is a computer operating system or OS).
System software
_______ are used for creating software applications, Web sites, operating
systems, and utilities.
Development tools
When a computer "runs" software, it performs the instructions to carry out a task.
True
Operating system
The software that controls the computer's use of its hardware resources, such as
memory and disk storage space.
Storage
A term used for the components of a digital device designed to hold data permanently.
A data storage system has two main components: a _______ and a _______.
Storage medium; storage device
Storage medium
The disk, tape, CD, or DVD that contains data.
Storage device
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