Algorithms and Sequence

A list of instrucitons to do a task

• algorithm

• sequence

• micro:bit

Computers understand the algorithm planned by a human.

• True

• False

Answer explanation

If you want the computers to understand the algorithm, translate it into a program by using the language they understand. Computers only understand the program.

Johnny planned an algorithm for his helper robot. Now he has to ____ for the robot to understand the instructions.

• program

• software

• instruct

______ is one of the building blocks in planning an algorithm.

• program

• sequence

• software

What is a sequence in an algorithm ?

• software

• steps

• an order of instructions to be followed

Sequence is not important in algorithms. Even if the sequence is wrong, computers will know and try to fix it themselves.

• True

• False

Answer explanation

Computers cannot think and they will not know if the order of steps they are following is wrong. They will do exactly what you tell them to do.

Choose a program for this algorithm.

1. When button A is pressed, show '0'.

2. When button B is pressed, show 'X'.

3. When button A+B is pressed, show 'P'.

• 
• 
• 

Choose an algorithm for this program.

• When the program starts, show 'Hello'.

• When button A is pressed, show 'Hello'.

• Always show 'Hello'.

Jack plans an ______ for the robot car so it can avoid the obstacles. Now he will turn it into a program.

• software

• algorithm

• software