ere arge organisations, em today. Mainframes can process dle millions of instructions undreds of processo no All process and machines that m embedded computer, on the that machine more efficient. In many cases, they take the place of a tor and control machines for us. are Question 1 1.1 Draw and explain the difference between a centralized and decentralized information system in terms of where data processing takes place. 1.2 What are TWO main functions of network operating system? 1.3 Why does anti-virus software need to be updated regularly? 1.4 Describe e-commerce and m-commerce 1.5 Discuss precautions that can be used to reduce software piracy.