Year 9 Half Term 1 Revision

?
  • Created by: EastwoC01
  • Created on: 17-10-19 11:00
View mindmap
  • Year 9 Computer Science
    • Ciphers
      • Substitution
        • an encrypted note/message where the letters shift by a certain amount
        • A key is how many times you shift the letter eg Caesar Cipher had of three
      • Transpotion
        • transposition cipher is a method of encryption by which the positions held by units of plaintext are shifted according to a regular system
      • Plaintext
        • This message is plain text
      • Cipher Text
        • wklv phvvdjh lv lq wkh Fdhvhu Flskhu
      • Cryptanalysis
        • deciphering coded messages without being told the key.
    • Python
      • Variables
        • Variables are a storage area in the memory of a computer given a label. The contents of the variable can be changed throughout a program
        • Print is a statement is a command that the programmer gives to the computer. For example:print "Hi there!" This command has a verb  and other details . In this case, the command print means "show on the screen
        • Input  Python has an input function which lets you ask a user for some text input. You call this function to tell the program to stop and wait for the user to key in the data.
          • Python
            • Variables
              • Variables are a storage area in the memory of a computer given a label. The contents of the variable can be changed throughout a program
              • Print is a statement is a command that the programmer gives to the computer. For example:print "Hi there!" This command has a verb  and other details . In this case, the command print means "show on the screen
              • Input  Python has an input function which lets you ask a user for some text input. You call this function to tell the program to stop and wait for the user to key in the data.
              • Data Types
                • A string is a group of characters made up of only letters
                • A float is not a whole number
                • An integer is a whole number
                • Boolean is True or false statements
              • Is,Elif or Else
              • Loops
                • For
                • While
              • A comment not a affected or influencing the code
        • Data Types
          • A string is a group of characters made up of only letters
          • A float is not a whole number
          • An integer is a whole number
          • Boolean is True or false statements
        • Is,Elif or Else
        • Loops
          • For
          • While
        • A comment not a affected or influencing the code

    Comments

    No comments have yet been made

    Similar Computing resources:

    See all Computing resources »See all Ciphers and Basic Python resources »