2.1 Algorithms and 2.2 programming techmiques

2.1 Algorithms and 2.2 programming techmiques

1. algorithms = steps to solve a problem, such as pseudocode.

   • Algorithmic thinking = knowing the steps to solve a problem.

2. decompose =breaking down large problems into smaller steps.

   • abstraction = representing "real world" problems on a computer and removing unnecessary parts.

3. sequence = completing steps in order

   • selection = point in the program where a choice has to be made
   • iteration = where a line of code is repeated

4. flow chart displays algorithm in diagram form with symbols and arrows.

5. flow charts are algorithms in diagram form wit symbols and arrors

6. data types:

   • real/float: numbers with decimal points
   • integer: whole number
   • string: simply a word or phrase
   • characters: a single letter or symbol.
   • date/time: date and time in any format
   • boolean: true or false value

7. constant = value stored in a program that never changes

   • variable = value stored in a program that can be changed.

8. syntax error = error that occurs when there is a grammatical error.