Computer systems can help people acheive tasks with great ease. For example, about 50 years ago, you would have to communicate with someone by post and if you needed to send the letter from the UK to Australia, it would take weeks to get to Australia. However emails can get around the world in seconds with very little effort. This means that things can move forward faster. Computers also assist businesses in creating spreadsheets which is very important in business presentations and meetings.
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