622300
Description
Flashcards by callumyoung1197, updated more than 1 year ago
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Created by callumyoung1197
over 10 years ago
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| Question | Answer |
| Process | giving data a context |
| Output | data that now means something |
| Constant | like a variable but it does not change for example pi the number would be the literal and the name you have set it as would be the identifier |
| Variable | something that changes during a program for example the score of a game |
| Data types | the type of data, how it is stored and what it can be used for |
| Array | one dimensional one dimensional is a linier list E.G first name last name, two dimensional a table |
| Sequencing | Getting things in the right order (The sequence that statements are executed is normally the same order that there listed in the code.) |
| Selection | A logical decision is made to determine which rought is taken through a program |
| scope | • The scope of variables or constants within computer programs is the place in which that variable or constant name can be used. extra If a variable or constant is not in scope, then it cannot be referred to by name or written into; it is effectively invisible to that part of the program. |
| Sub-routine | set of instructions to perform a certain task stored once and called upon many times |
| Procedure | a large sub-routine called to perform a task. May or may not retain a value |
| Function | a series of instructions to perform a task. When called it executes, returns a value then continues with the next line of code |
| • Built in functions | Present common functions provided by the language developers |
| Procedures and Functions (Repeated tasks) | A series of statements that exist outside the main program and that can be called upon |
| For loops While | For loops = run a set number (n) of times While – Keeps going until user says stop |
| Program flow control | Need to be structured because: Makes it readable and reliable Makes it understandable and easier to maintain TO do this Brake complex problems into a series of smaller and more practicable steps Smaller jobs and problems or easier steps to understand |
| Character | Character data type can store a single alphanumeric character, such as: digit, letter, symbol or any punctuation marks. |
| Integer | Integer data type can store any whole number, such as: -115, 0, 2, 341 |
| Real | Real data types are used when there is a decimal point with a fractional number, such as: -32.15678, 0.012, 59.00564, 72.0 |
| Boolean | Boolean data types are used for logical operations and have the value True or False |
| String | String can be used to store an alphanumeric character, such as letter, digit, symbol, space or punctuation mark. It is normally used as an array so that: String could contain the message ‘Hello World!’ |
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