Karteikarten
Computing
Karten in diesem Stapel (33)
- 1What is an algorithm?An algorithm is a sequence of steps that can be followed to complete a task.
- 2What is the difference between an algorithm and a computer program?A computer program is an
implementation of an algorithm and that an algorithm is not a computer program. - 3What is decomposition?Decomposition means breaking a problem into a number of sub-problems, so that each sub-problem accomplishes an identifiable task, which might itself be further subdivided.
- 4What is abstraction?Abstraction is the process of removing
unnecessary detail from a problem. - 5Why are some algorithms more efficient than others for solving a given problem?The less code that needed to perform that problem the more efficient the algorithm
- 6What does an oval mean in a flowchart?Start/Stop
(Terminator) - 7What does a rectangle mean in a flowchart?A process
- 8What does a parallelogram mean in a flowchart?An Input or Output
- 9What does a diamond mean in a flowchart?A dicission
- 10How do linear search algorithms work?They go through every piece of data in order to find something that matches your search.
- 11How do binary search algorithms workThe algorithm compares the median value to the target value. Based on the comparison it then eliminates half of the search space. By doing this repeatedly, it will eventually be left with the target value.
- 12What are the differences of linear and binary searches?A linear search in slow but simple to program where as a binary search is quick but complected.
- 13What base is Decimal in?Base 10
- 14What base is binary in?Base 2
- 15What base is hexadecimal in?Base 16
- 16what is 255 in binary?111111111
- 17Why are hexadecimal numbers used?They are used because it is easier for people to read and understand
- 18What is 10 in binary and hexadecimal?1010 and A
- 19What is 16810101000 and A8
- 20How many bits in a byte8 bits in a byte
- 21How many bytes in a megabyte1,000 bytes in a kilobyte
- 22What is the right order? Megabyte, Petabyte, Byte, Terabyte, Kilobyte, Bit, GigabyteBit, Byte, Kilobyte, Megabyte, Gigabyte, Terabyte, Petabyte
- 23What does this mean? 900b900 bits
- 2411000100 +00111100 +10011111 ___________________________
110011111 - 25How many bits in ASCII?7-bit
- 26Extended binary is how many bits?8 bits
- 27How many bits in Unicode?32 bits
- 28What does Pixel stand for?Picture element
- 29What is the equation for a image size? (Byte)Width x Height x Colour Depth
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8 - 30What is the equation for a image size? (bit)Width x Height x Colour Depth
- 31What is colour depth?The amount of bits behind each pixel to determine their colour.
- 32What is the file size? (Bytes) 10 width 15 height 5 colour depth93.75 Bytes
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