Question: User process User space User program Rost of the operating system Kemal space Printer driver Camcorder driver CD-ROM driver Hardware Printer controller Camcorder controller CD-ROM

User process User space User program Rost of the operating system

User process User space User program Rost of the operating system Kemal space Printer driver Camcorder driver CD-ROM driver Hardware Printer controller Camcorder controller CD-ROM controller Devices Figure 2: Device Management Figure 2 shows the overview of device management with user and kernel operation modes. Answer the following based on the above figure: a) What is device driver? (2 marks) b) 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) d) What is the main function of device manager? (2 marks)

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