Flashcards
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Flashcards do conjunto (18)
- 1ValidationValidation is used to check if data is meaningfull
- 2Range CheckA range check is used to only allow certain values
- 3Presence CheckA presence check checks that data has been entered
- 4ExceptionsAllows the user to input data without receiving errors
- 5Length CheckTo check the length of data
- 6GIGOGarbage In Garbage Out
Meaning if data is not valuable it won't be used - 7Logical ErrorA problem in the design of the algorithm
- 8Syntax ErrorA grammatical error in the source code of a program
- 9BinaryBinary uses 1s and 0s to represent on/off switches
- 10Binary Addition Rules1 + 0 = 1
0 + 0 = 0
1 + 1 = 0, carry a 1
1 + 1 + carried 1 = 1, carry a 1 - 11OverflowIf the result of a binary addition is higher than the maximum number of bits, an overflow error will occur
- 12Binary Shift LeftMoves binary numbers to the left, doubling them for each time they are shifted
- 13Binary Shift RightMoves binary numbers to the right, halving them for each time they are shifted
- 14IterationA repeat in a program or algorithm
- 15SelectionChecks whether a condition is true or not and adjusts the flow of code based on that
- 16SequenceIn a sequence structure, an action, or event, leads to the next ordered action in a predetermined order. The sequence can contain any number of actions, but no actions can be skipped in the sequence.
- 17ArrayAn array is a data structure consisting of a collection of elements (values or variables), each identified by at least one array index.
- 18StringIn computer science a string is any finite sequence of characters (i.e., letters, numerals, symbols and punctuation marks). An important characteristic of each string is its length, which is the number of characters in it.
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- GCSE Computer Science FlashCards sobre Sem título, criado por Binda Singh em 11-01-2017.
- Criado por
- Binda Singh
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