Computer Science

a collection of attributes for a single entity

an entity is a single object, place, person or thing

properties or characteristics of an entity

a data structure that involves creating data pairings that can be located using a key

used to identify each attribute held in the dictionary

Records and dictionaries

Dictionary challenge

Reading text files

Writing to text files

Reading CSV files

Writing to CSV files

Careers in programming

Programming project - dictionaries I

Programming project - dictionaries II

This unit introduces pupils to the new data structures of records and dictionaries. They will develop a Caesar cipher encryption program using a dictionary as a cipher wheel. Pupils will explore how data can be read from and written to files and how this data can be used within a program.

Programming: dictionaries and data files

the process of applying an encryption algorithm to plaintext to produce ciphertext that cannot be understood (without decryption)

when a key (the attribute identifier) is paired with the data

an algorithm used to convert plaintext messages to ciphertext (encryption) or ciphertext to plaintext (decryption)

a collection of data stored digitally, identified by a name

an operation that is specified within a command to open a file, that determines how a file can be used

a Python method which removes any leading and trailing whitespaces or characters that you specify

a file handling mode that allows a program to write data to a file, where, if the file does not exist, a new file is created, and if the file already exists, the content is overwritten

a file handling mode that allows a program to write extra data at the end of a file without erasing the existing contents of the file

to replace information in (a computer file) with new information

Writing to a file

Appending to a text file

comma-separated values are a plaintext data file where each value is separated by a single comma

displaying data in a grid of rows and columns

a Python method which removes any leading, and trailing whitespaces or characters that you specify

a Python method which is used to break a string into a list based on a specified delimiter

a dynamic data structure that can contain items of different data types

a sequence of characters, e.g. letters, numbers, spaces, and other symbols

the join method takes a list and joins each value in that list into one string

specific, measurable and realistic benchmarks used to determine if a project, task or outcome has been accomplished successfully

a document that you can use when developing a program to keep track of your progress throughout the project

reflecting on what has been done well and what could be improved

Help using Oak

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Programming: dictionaries and data files

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