null
US
Entrar
Registre-se gratuitamente
Registre-se
Detectamos que o JavaScript não está habilitado no teu navegador. Habilite o Javascript para o funcionamento correto do nosso site. Por favor, leia os
Termos e Condições
para mais informações.
Próximo
Copiar e Editar
Você deve estar logado para concluir esta ação!
Inscreva-se gratuitamente
16611581
Unit 2.2 Programming Techniques
Descrição
My Unit 2.2 Computing Mind Map
Sem etiquetas
gcse
ocr computing
computing
year 10
Mapa Mental por
Mathew Wheatley
, atualizado more than 1 year ago
Mais
Menos
Criado por
Mathew Wheatley
mais de 5 anos atrás
163
2
0
Resumo de Recurso
Unit 2.2 Programming Techniques
Key Words
Variables - Contain preset, changeable information that can be altered throughout the code
Constant - Contains fixed information that is the same whilst the code is running.
Operators - They represent the operations being performed on the data
Concatenate - Join together
Sequencing - This allows us to solve complex tasks through a number of simple steps. A step by step solution.
Selection - Changes the flow of a program, depending on a set of conditions. Used for validation, calculation & making sense of a user's choices
Iteration - Repeating things over and over
Stepping - Skipping things in an iteration
EOF - End of File
EOL - End of Line
SQL - Standard Query Language, a popular human-readable programming language
Parameter - A special name given to a variable that is passed into a subfunction.
Operators - Represent the operations being performed on the data.
+-x/ - The 4 Basic Maths Operations
^ - Exponentiation or Indices
MOD - Modulus, Shows the remainder
DIV - Quotient, shows the whole divided number
Data Types
Integers - Whole Numbers
Floats / Reals - Numbers with a fractional / decimal part
Strings - Text in a program
Booleans - True / False Statements
Two Basic Programming Constructs
Sequenceing
Selection
What is Casting?
Change how a variables data type is interpreted
str(123) Converts 123 into a string
int("123) Converts "123" into an integer
Databases and Arrays
Arrays are ordered collections of related data where each element is accessible by an index (Number)
They can come as 1D or 2D
1D arrays use one index whereas 2D arrays uses 2 indexes, similar to co-ordinates
2D arrays use numeric index instead of names
Record - A specific row of information referring to one specific entity.
Fields - A single cell in the database.
Procedures store a set of instructions under one name whereas functions are called by assign their return value to something.
Subroutines are repeatable sections of code
Quer criar seus próprios
Mapas Mentais
gratuitos
com a GoConqr?
Saiba mais
.
Semelhante
Types and Components of Computer Systems
Jess Peason
Input Devices
Jess Peason
A level Computing Quiz
Zacchaeus Snape
Hitler and the Nazi Party (1919-23)
Adam Collinge
GCSE History – Social Impact of the Nazi State in 1945
Ben C
GCSE Biology AQA
isabellabeaumont
GCSE Biology B2 (OCR)
Usman Rauf
Maths GCSE - What to revise!
livvy_hurrell
Ionic Bondic Flashcards.
anjumn10
Electrolysis
lisawinkler10
Forces and their effects
kate.siena
Explore a Biblioteca