Comp Con Final Questions Chapter 1

Comp Con Final Questions Answer lies beneath question Chapter 1: Data becomes _______ when it is presented in a format that people can understand and use. information The 0s and 1s used to represent digital data are referred to as _________ digits. binary The binary number system has only two digits: 1 and 2. false The _______ number system allows digital devices to represent virtually any number simply by using 0s and 1s. binary Unicode uses________ bits and provides codes for 65,000 characters sixteen . In a formatted text file, ________ signals the beginning and end of a formatting command. delimiter(s) A group of eight bits is called a _______. byte Data ____________ refers to any technique that recodes the data in a file so that it contains fewer bits. compression Lossy compression provides a way to compress data and reconstitute it into its original state false Sampling _______ refers to the number of times per second that a sound is measured during the recording process rate . Regardless of sampling rate, digital audio file size can be reduced using audio compression techniques. true The technical term for ripping music tracks is digital audio extraction. true One of the main disadvantages of MIDI is that it cannot produce vocals true _________ enables people to control software with spoken commands, as well as dictate text into a word processing document. speech recognition __________ is the process by which machines produce sound that resembles spoken words. speech synthesis Text-to-speech software analyzes the words in a section of text, finds corresponding phonemes, and combines them into sentences for output. True Speech recognition software analyzes the sounds of your voice and converts each word into groups of ________. phoneme(s) A bitmap graphic is composed of a grid of tiny rectangular cells true Digital photographs are stored as bitmap files. true In a digital camera, a CCD's ________ correspond to pixels. photosite(s) Bitmap images are formed by a grid of _____. pixels Most graphics software uses a process called pixel _________ to create new pixels by averaging the colors of nearby pixels interpolation Lossy compression techniques discard some data from an image to shrink its file size true Image editors provide an image __________ that can be used to adjust the brightness values for various ranges of dark, midrange, or light pixels histogram A clipping ______ essentially cuts an object out of an image and knocks out the background to make it transparent. path Instead of storing the color value for each pixel, a vector graphics file contains instructions that a computer uses to create the shape, size, position, and color for each object in an image. true When you change the size of a(n) _______ graphic, the objects change proportionally and maintain their smooth edges. vector All bitmap graphics are photos. false The process of covering a wireframe with surface color and texture is called _________. rendering, render 3D graphics can be animated. true . Digital video uses bits to store color and brightness data for each video frame true . In digital video, each bitmap image is referred to as a(n) __________. frame Digital videos look sharpest when they are displayed at a resolution that is larger than the frame size. false ________ is the number of bits that are processed during a specific unit of time, usually during one second bit rate Video files are stored in ________ formats that hold the compressed video stream and an audio stream container _________ refers to the symbols that represent people, events, things, and ideas data Data refers to the symbols that represent people, events, things, and ideas. true Data __________ refers to the form in which data is stored, processed, and transmitted. representation Data __________ refers to the form in which data is stored, processed, and transmitted. text, numbers, graphics, sound and video The process of converting information, such as text, numbers, photos, or music, into digital data that can be manipulated by electronic devices is called ___________. digitization A file name extension indicates the file format. true ________ data consists of numbers that can be used in arithmetic operations. numeric Character data is composed of letters, symbols, and numerals that are used in calculations. false ASCII requires __________ bits for each character. seven Plain, unformatted text is sometimes called ASCII text. true ASCII text files contain formatting false All of the data stored and transmitted by digital devices is encoded as bits true Transmission speeds are expressed in _______, whereas storage space is expressed in _______. bits, bytes Lossy compression throws away some of the original data during the compression process true Compressed files usually have ______ at the end of the file name .zip __________ is music, speech, and other sounds represented in binary format for use in digital devices. digital audio To digitally record sound, __________ of a sound wave are collected at periodic intervals and stored as numeric data in an audio file. samples To conserve space, applications that require highquality sound use low sampling rates False Most music for portable media players is stored in _______ audio file formats compressed Digital audio is stored in a variety of file formats, including ___________. WMA, WAV, MP3 Which of the following is NOT a format that is used for digital audio? DOC A(n) _______ is software that works in conjunction with your computer's browser to manage and play audio that you are accessing from a Web page. audio plugin ______ specifies a standard way to store music data for synthesizers and computers. MIDI MIDI files are less compact than digital audio files. false Which of the following is NOT a type of bitmap format? ZIP Today's color display devices represent color using the ______ color model. RGB The number of colors available in a graphic is referred to as color _________. depth 8bit color depth is also called True Color. false The dimensions of the grid that forms a bitmap graphic are referred to as image __________. resolution Bitmap graphics are resolution dependent because each element is a discrete pixel. true An undesirable jagged appearance of a graphics image is referred to as _______. pixelation Image __________ refers to any technique that recodes the data in an image file so that it contains fewer bits. compression TIFF, PNG, and GIF graphics formats offer lossy compression false JPEG files are compressed using lossy compression. true Bitmap graphics are coded as a series of bits. Each bit represents the color of one ________. pixel In the context of bitmap graphics editing, what technique employs algorithms that pull pixels from one area of an image and then apply them to another area? cloning What is the term used to describes altering the pixel colors where the edges of the object and the background meet, so that the object appears to merge with the background? alpha bending A vector graphic consists of a set of instructions for creating a picture. true Vector graphics usually require more storage space than bitmaps false Which of the following options are well suited for using vector graphics? line art, logos, diagrams Which of the following file extensions is NOT a vector graphic? .tif Both scanners and digital cameras produce vector graphics. false What is another term for vector graphics software? drawing software A vector graphic can be converted into a bitmap graphic through a process called _________. rasterizing, razerization After a vector graphic is converted to a bitmap, the resulting graphic no longer has the qualities of a vector graphic. true 3-D graphics are based on vectors stored as a set of instructions describing the coordinates for lines and shapes in a three dimensional space. What do these vectors form? a wireframe Which of the following is the technique for adding light and shadows to a 3D image? ray tracing Which of the following tools would be found in 3D graphics software rendering tools, ray tracing tools, surface texture tools Analog footage can be digitized using video _____ equipment capture Digital ________ captures moving images as bits, rather than on fil cinematography Digital video is a core technology for which of the following? digital television, videoconferencing systems, and video messaging Which of the following is NOT a factor in the quality of digital video? memory technology in your camera The number of frames that are displayed per second is measured in _______. fps . Video resolutions can be expressed as width x height. true . Today's widescreen devices, such as laptops and smartphones, are designed for the 16:9 __________ aspect ratio When 4:3 videos are displayed in a widescreen player, they are bordered by the black bars of a(n) _______. letterbox. In digital video, as long as the proportion of horizontal and vertical pixels remains the same, the aspect ratio is consistent. true Bit rate can be scaled down by reducing the resolution and applying ____________ techniques. compression In digital video, a lower resolution reduces the bit rate. TRUE ________ compression stores only the pixels that change color from one frame to the next interframe _______ compression can be applied to each frame of a video intraframe Video compression can be expressed as a compression ______. ratio A(n) _______ is the software that compresses a video stream when a video is stored, and decompresses the file when the video is played. codec Which of the following is NOT a type of digital video container file? PNG Transcoding digital videos does not cause a loss of quality. false