Basic IT Skills Examination

(a) Describe the hardware components of a computer and give examples of each. (4 marks) (b) Describe the two type of storage: Primary & Secondary storage. (6 marks) (c) Briefly explain the significance of input-process-output cycle of computer (10 marks)

(a) In the spaces below, write the name of the components and describe ONE function of each. Component Name Function (4X3 = 12 marks) (b) Define the term software? explain the different between system software and application software (8 marks)

(a) Font is found in most Microsoft office application (i) Explain what a font is. (2 marks) (ii) Name five different fonts. (4 marks) (b) State the two different page orientations a word processed document can be set to. (2 marks) (c) Below are images of four button icons found in most Microsoft office application program? For each image describe the purpose of the button. (i) (ii) (iii) (iv) (3X4 = 12 marks)

(a) Convert the following hexadecimal and octal into decimal. (i) B 16 (ii) 2 8 (1 mark each) (b) Perform binary addition on the two numbers below, showing your answer as an 8 bit binary word. (Show working) 101011 2 +101111 2 (2 marks) (c) Convert the following decimal numbers into binary numbers. (-) (Show working) (i) 66 10 (ii) 220 10 (4X2 = 8 marks) (d) Convert the following binary numbers into decimal numbers. (-) (Show working) (i) 1100110 2 (ii) 111110 2 (4X2 = 8 marks)

(a) Expand the following abbreviations and explain their meanings: (i) RAM (ii) ROM (iii) CPU (iv) CU (v) ALU (4X5 = 20 marks)

(a) With an aid diagram, explain the following transmission mode of data flow in data communication: (i) Simplex (ii) Half Duplex (iii) Full duplex (4X3 = 12 marks) (b) Define the term Wi-Fi? Give two advantages and two disadvantages of Wi-Fi. (8 marks)

Answer explanation

(a) Simplex: One-way communication (e.g., keyboard to computer). Half Duplex: Two-way, but not simultaneous (e.g., walkie-talkies). Full Duplex: Two-way, simultaneous (e.g., phone calls). (b) Wi-Fi: Wireless networking technology. Advantages: Mobility, easy setup. Disadvantages: Limited range, security risks.