What Is a Global Variable? A computer program is, essentially, a list of instructions for a computer to carry out when you run it. However, most programs are complex enough that they outgrow a ...

Learn how computers use variables with this KS2 primary computing guide from BBC Bitesize for years 3 and 4.

The computer programmer has created a variable box and given it the name score. The variable box shows on the game screen so the player can see what number is inside. This is what the program code ...