1 State the role of input devices. 2 Contrast data input by a keyboard to that of a barcode reader. 3 What is an advantage of the use of a wireless data collection device in a supermarket? 4 List...

1 State the role of input devices.

2 Contrast data input by a keyboard to that of a barcode reader.

3 What is an advantage of the use of a wireless data collection device in a supermarket?

4 List three differences between internal solid state drives and removable flash drives.

5 How can RAID help to protect stored data?