Unit 16 Part 2

Unit 16 Part 2

What are Automatic Systems?

Open Ended

From the last session can you give 3 reasons why flow charts are used?

Using the correct symbols, Create the flowchart for two way traffic lights.

Post your chart to the chart Padlet on Moodle

Before you write one piece of computer code, you have to know what the program is supposed to do. Before you write one line of code in any language, it is a good idea to write it in a simple way first to ensure you have included everything you need.

The best way to set this up is by using pseudocode.

Open Ended

What do you think pseudocode is?

Pseudocode is a simple way of writing programming code in English. Pseudocode is not actual programming language. It uses short phrases to write code for programs before you actually create it in a specific language.

Once you know what the program is about and how it will function, then you can use pseudocode to create statements to achieve the required results for your program.

Pseudocode makes creating programs easier. Programs can be complex and long; preparation is the key.

Flowcharts are used to map out programs before writing one line of code in a language. 

To use pseudocode, all you do is write what you want your program to say in English.

Pseudocode allows you to translate your statements into any language because there are no special commands and it is not standardized. 

Writing out programs before you code can enable you to better organize and see where you may have left out needed parts in your programs.

All you have to do is write it out in your own words in short statements. Let's look at this example.

create a program to add 2 numbers together and then display the result.

Open Ended

Write the pseudocode to compute the area of a rectangle:

Fill in the Blank

What is the missing instruction?

Get the length, L, and width, W

********* the area = L*W

Display the area

A  flowchart shows the steps in the solution as boxes of various kinds, and their order is shown by connecting the boxes with arrows.

The instructions are added to the boxes using pseudocode.

That is all for this week