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CSC 101 Exam |Questions with 100% Correct Answers
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CSC 101 Exam |Questions with 100% CorrectAnswers
What is compression? - ✔️✔️Reduction in the amount of space needed to store a piece of data
Why is compression important? - ✔️✔️It allows us to share data with others on the Web
What are the different compression methods? - ✔️✔️Lossless and Lossy
How is the compression-ratio determined? - ✔️✔️Size of the compressed data divided by size of
the original data
What is a desirable compression-ratio? - ✔️✔️A number between 1 and 0...low
Binary Representations - ✔️✔️One bit can either be 1 or 0
Signed Numbers - ✔️✔️When signed, the far left bit determines whether it is negative (1) or
positive (0)
Unsigned Numbers - ✔️✔️Always positive
What does it mean to digitize sound by sampling? - ✔️✔️Periodically measuring the voltage and
recording the numeric value
Optical Disks - ✔️✔️Use a laser to read, write, and erase data
What are examples of optical disks? - ✔️✔️CD, DVD, BD
, RGB Value - ✔️✔️Three numbers that indicate the relative contribution of each of these three
primary colors
Color Depth - ✔️✔️The amount of data that is used to represent a color
Pixel - ✔️✔️Individual dot
Resolution - ✔️✔️The number of pixels used to represent a picture
What are the different types of storage capacity? - ✔️✔️KB, MB, GB, TB, PB, EB
KB - ✔️✔️Kilobyte - 2^10 bytes
MB - ✔️✔️Megabyte - 2^20 bytes
GB - ✔️✔️Gigabyte - 2^30 bytes
TB - ✔️✔️Terabyte - 2^40 bytes
PB - ✔️✔️Petabyte - 2^50 bytes
EB - ✔️✔️Exabyte - 2^60 bytes
What makes up a processor/microprocessor/CPU/Microchip/Chip? - ✔️✔️Arithmetic Logic Unit
(ALU), Control Unit, and Registers
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