Which of the following is the correct full form of JPEG?
- A.Joint Photography Exports Group
- B.Joint Pixel Experts Group
- C.Joint Photographic Experts Group
- D.Joint Pixel Exports Group
Correct answer
Explanation
The correct answer is C, Joint Photographic Experts Group. The format is named after the committee of experts that drew up the standard, which was published in 1992 for compressing photographs. A JPEG file uses lossy compression: it throws away the fine detail the human eye is least likely to miss, so a picture that would need several megabytes as raw data is stored in a few hundred kilobytes. That is why photographs on websites and in phone galleries are saved as .jpg or .jpeg, while logos, line drawings and screenshots are better kept as PNG or GIF, which are lossless. A is wrong because it puts Photography and Exports in place of Photographic and Experts. B is wrong because it replaces Photographic with Pixel. D is wrong on both counts, using Pixel as well as Exports. Exam tip: JPEG is the Joint Photographic Experts Group and is lossy; PNG and GIF are lossless; MPEG is the Moving Picture Experts Group.
Practice Questions
View allWhich language uses the symbolic representation of machine codes needed to program a particular processor or processor family?
- A.Machine Language
- B.Assembly Language
- C.High-Level Language
- D.All of the above
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Assembly language replaces the binary machine codes of a processor with short symbols called mnemonics, such as MOV, ADD and JMP.
Read the full explanation →Which one of the following is the characteristic of Artificial Intelligence ?
- A.Replicates human decision making
- B.Stores relevant information
- C.Stores similar kind of data for a specific purpose
- D.Allows user to interact with media
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Artificial Intelligence is the ability of a machine to perform tasks that normally need human intelligence, such as reasoning, learning and taking decisions.
Read the full explanation →What is an interactive combination of text, graphics, video, audio and images termed as ?
- A.JPEG
- B.Multimedia
- C.AVA
- D.PNG
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Multimedia means using several forms of media, such as text, graphics, audio, video, images and animation, together, often in a way the user can interact with.
Read the full explanation →Which among the following is a malicious software?
- A.Hacking
- B.Password Cracking
- C.Trojan Horse
- D.Firewall
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A Trojan is a program that looks useful or harmless but secretly carries harmful code, so it is a piece of malicious software, or malware.
Read the full explanation →Which one of the following is not an application software?
- A.Spreadsheet
- B.AutoCAD
- C.MS PowerPoint
- D.Linker
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A linker is system software, a programming tool that joins compiled pieces of code into one program that can run; it does not do a task for the end user.
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