Online worksheet ยท 2 of 4
Computers help with information - Online practice 2
Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.
Read before answering
At the shop, people use a barcode scanner and till. It works with item codes and prices. This helps them work out the price of an item. Information can be words, numbers, pictures or sounds. Computers need suitable information; a result can be wrong if the information is wrong.
Worksheet preview
- What information does the barcode scanner and till use?
- How does this help people at the shop?
- Should people believe every result from the barcode scanner and till without checking? Why?
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