

Year 10 Computer Science - End of Year Flashcard
Flashcard
•
Computers
•
10th Grade
•
Practice Problem
•
Hard
Wayground Content
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67 questions
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1.
FLASHCARD QUESTION
Front
The purpose of data compression is to decrease file sizes.
Back
True
2.
FLASHCARD QUESTION
Front
ASCII only contains English characters. The name of the system, which was invented to represent other languages (such as Russian, Arabic or Chinese), and allows up to 1 114 112 possible characters is:
Back
Unicode
3.
FLASHCARD QUESTION
Front
Why do computers work with binary bits instead of using decimals?
Back
Computers can not understand any numbers, however they understand on or off (or low voltage and high voltage) which they translate to on and off.
4.
FLASHCARD QUESTION
Front
Lossless data compression usually works by..
Back
Finding repeating patterns.
5.
FLASHCARD QUESTION
Front
Data compression is important for websites because:
Back
Your webpage will load faster.
6.
FLASHCARD QUESTION
Front
Computer users see images, text and graphics that have been converted from binary code
Back
True
7.
FLASHCARD QUESTION
Front
Which compression method makes the file smaller by deleting parts of the file permanently (forever)?
Back
Lossy Compression
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