null
US
Iniciar Sesión
Regístrate Gratis
Registro
Hemos detectado que no tienes habilitado Javascript en tu navegador. La naturaleza dinámica de nuestro sitio requiere que Javascript esté habilitado para un funcionamiento adecuado. Por favor lee nuestros
términos y condiciones
para más información.
Siguiente
Copiar y Editar
¡Debes iniciar sesión para completar esta acción!
Regístrate gratis
16553869
Unit 2.2 - Programming Techniques
Descripción
Year 10 Computing Mapa Mental sobre Unit 2.2 - Programming Techniques, creado por Dan Roberts el 27/01/2019.
Sin etiquetas
computing
year 10
Mapa Mental por
Dan Roberts
, actualizado hace más de 1 año
Más
Menos
Creado por
Dan Roberts
hace más de 5 años
24
0
0
Resumen del Recurso
Unit 2.2 - Programming Techniques
Sequencing
Allows a programmer to solve complex tasks through a number of simple steps
Each line follows the next
Creates simple programs very quickly
Easy to follow for a small program
Fundamental principal of a program
Not efficient
Becomes very difficult to follow with large programs
Hard to maintain
Selection
Allows a computer to make decisions
Changes the flow of a program depending on a set conditions
Used for validation, calculation and making sense of a user's choice
Nested Selection
Only evaluates a condition if pre-conditions are met
There is no limit on how many selection statements we can nest
The outside selection is the pre-condition and the inside is the condition
An array up to 2D to a file
Iterate through an array using WRITELINE and writing elements to the file one by one
Serialise the array (convert to a string) using delimiters e.g. commas for columns and NewLines for rows in case of a 2D array
Uses numeric index not names
Array: An ordered collection of related data where each element is accessible by a number index
SQL (Standard Query Language)
A popular readable programming language
Used to work with databases stored in binary proprietary formats e.g. Oracle, MySQL
Purpose of SQL S-Search C-Create R-Read U-Update D-Delete
SELECT, FROM, WHERE
Variables
A "variable" is a memory location that changes throughout the program
A "constant" is a memory location that is fixed for the duration of the program
"Assignment" is labelling various inputs, constants and outputs with descriptive names
Information is stored in memory locations under descriptive names called "identifiers"
"Concatenation" is joining inputs/text variables together
"Parameters" are inputs coming from the console, from a file or from elsewhere in a modular program
Operators
Boolean - An outcome of one of two values
String - A sequence of characters
Concatenate - Join Together
Substring - A smaller part of a string
Delimiter - One or more characters that separates a string
Iteration
"Iteration" is when loops run similar types of data
A "For Counter" is a loop for when we know how many times we want something to loop so we use a counter
"Stepping" is when we skip or miss out when counting
A "While Loop" is used for validation and searching. Evaluates a boolean everytime they run
Mostrar resumen completo
Ocultar resumen completo
¿Quieres crear tus propios
Mapas Mentales
gratis
con GoConqr?
Más información
.
Similar
A level Computing Quiz
Zacchaeus Snape
Types and Components of Computer Systems
Jess Peason
Input Devices
Jess Peason
Output Devices
Jess Peason
Computing
Kwame Oteng-Adusei
Pack of playing cards answer
Karl Taylor
Code Challenge Flow Chart
Charlotte Hilton
Computing Hardware - CPU and Memory
ollietablet123
Computer Systems
lisawinkler10
Computer science quiz
Ryan Barton
Input, output and storage devices
Mr A Esch
Explorar la Librería