2 Briefly explain the following computer terms and concepts: 2.1 Hot-swapping. 2.2 Overclocking. 2.3 PC Bus. 2.4 Virtual machine. 2.5 Multithreading. [5 Marks] Question 3 Explain the primary purpose of the following hardware and software components: 3.1 Thermal compound. 3.2 Power supply. 3.3 Loopback plug. 3.4 Device driver. 3.5 CMOS battery [5 Marks] Question 4 Briefly explain the difference between the following: 4.1 Serial and Parallel data transmission. 4.2 Northbridge and Southbridge with regard to their purpose. 4.3 Low level formatting and high level formatting. [6 Marks] Question 5 5.1 Discuss the advantages that Solid State Drives provide. [4 Marks] 5.2 Name FIVE factors that should be considered when buying a power supply unit and briefly discuss each factor. [10 Marks] [Total 50 Marks] End 2 0