IT Vocab 4

Question 1

The number of individual samples taken each second during digital sound recording

Answer 1

Sampling Rate

Question 2

The second step in designing a 3D model which converts the models into 2D images on a computer

Answer 2

Rendering

Question 3

The number of images, or frames, that are taken each second during digital video recording

Answer 3

Frame Rate

Question 4

Pieces of software that either compress or decompress digital media

Answer 4

Video Codecs

Question 5

The most important part of any modern computer system that controls the other parts of the computer

Answer 5

Central Processing Unit (CPU)

Question 6

A compression algorithm, such as JPG, MP3, and MP4, that slightly alters the data to make it easier to store, taking advantage of the limitations of human sight and hearing, and is usually used for images, videos, and audio files

Answer 6

Lossy Compression

Question 7

A way of reducing the size of files, making them easier to store

Answer 7

File Compression

Question 8

The number of pixels in the width and height of each frame in a digital video recording

Answer 8

Resolution

Question 9

A common lossless compression algorithm that looks for repeated patterns of bits or bytes and records the pattern and then the number of times the pattern is repeated

Answer 9

Run-Length Encoding

Question 10

A small computer that combines a display and keyboard and is designed to be easily carried

Answer 10

Notebook/Laptop

Question 11

Images stored by dividing a picture into rows of pixels and collecting the color values of each pixel, in order, row-by-row

Answer 11

Raster Images

Question 12

The speed at which a computer processes information, as measured by the number of cycles per second (Hertz) that the computer’s CPU operates at

Answer 12

Processor Speed

Question 13

The first step in designing a 3D model which provides the outline of the model, including only the vertices and lines without including any surfaces, textures, or lighting

Answer 13

Wireframes

Question 14

The amount of memory the computer uses to display colors in a digital image or digital video. 8-bit color images use one byte of data for each pixel. 24-bit color uses three bytes for each pixel

Answer 14

Color Depth

Question 15

A patch of pixels in a compressed image or video that have less visible detail than the rest of the image

Answer 15

Compression Artifact

Question 16

An IT professional who designs, records, and edits instructional videos, marketing materials, commercials, and other digital video content

Answer 16

Video Production Specialist

Question 17

A compression algorithm, such as GIF, PNG, PDF, and ZIP, that doesn’t affect the original data. A file compressed using a lossless compression algorithm, when decompressed, will be exactly the same as the file before compression, bit for bit

Answer 17

Lossless compression

Question 18

A popular type of computer system that can be equipped with peripheral devices such as a monitor, keyboard, mouse, and speakers

Answer 18

Desktop

Question 19

A circle might be stored as a center point and the distance from the center point to the circle’s edge. A square is stored as four lines, each with a beginning point and a length. More complex shapes can be stored as a set of small lines

Answer 19

Vector Images

Question 20

An additional computer processor that provides graphics processing, providing better performance by relieving the CPU of this duty

Answer 20

Graphics Processing Unit (GPU)

Question 21

Small computing devices such as tablets and smartphones that are much more portable than desktops and laptops

Answer 21

Mobile devices

Question 22

An IT professional who specializes in recording and editing high-quality audio for videos, podcasts, and many other purposes

Answer 22

Digital Audio Producer

Question 23

An advanced rendering method that is used to create incredibly realistic lighting effects for things like video games and movies

Answer 23

Ray Tracing

Question 24

A creative artist who designs digital images and illustrations for a wide variety of purposes, including ads, logos, emails, marketing materials, websites, social media, and mobile apps

Answer 24

Graphic Designer

Question 25

The part of a sound wave that is captured, measured, and assigned numeric value during digital sound recording

Answer 25

Sample

Question 26

A display on a computer monitor that is made up of sets of tiny red, green, and blue (RGB) lights, each set combining to make a pixel. A pixel will display different colors depending on the brightness of each light

Answer 26

RGB Display