Computers are machines — Computing, 4–6 years
A computer is a machine made by people to handle information and carry out tasks. Computing, 4–6 years.
A computer is a made thing
A computer is a machine made by people. It can keep information, change it, and show a result, but it does not have thoughts or wishes like a person. It works because its parts and programs are arranged to do jobs.
Why make a computer?
People wanted machines that could handle many marks, numbers and messages without getting tired. A computer helps with work that is too quick, repetitive or large for one person to do easily. People still choose the task and check whether the result makes sense.
A computer counts apples
There are 3 apples in one basket and 2 in another. First, a person tells the computer to add the two numbers. Next, the computer follows its built-in rules: 3 plus 2 is 5. Finally, it shows 5 on the screen; the person checks the baskets to see if that answer fits.
A machine is not a mind
It is easy to think a computer understands, because it can answer quickly or speak in a friendly voice. It is really following ways of working designed by people. If the information or rules do not fit the situation, the computer cannot notice the problem in the human way.
Where this helps
This idea helps when using a tablet, a ticket machine or a toy robot. You can ask: what job is this machine doing, and what did a person set it up to do? It also reminds you to check important results instead of trusting a screen just because it looks certain.
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