QUESTION 4 11 Figure 2: Device Management Figure 2 shows the overview of drvice management with user and kernel operation modes, Answer the following based on the above figure Hak Cipta Universiti Teknologi MARA CONFIDENTIAL CONFIDENTIAL a) What is device driver? CSFEB 2021/CSC204 (2 marks) D) Explain how both device driver and device controller work (3 marks) c) Describe both type of operation (user mode and kernel mode) in the operating system (3 marks) a) What is the main function of device manager? (2 marks)