PART ONE
i. System Unit
ii. Processor
iii. Technology
iv. Motherboard
b) Explain the difference between the following terms (4 marks)
i. Hardware and Software
ii. Stand Alone Operating System and Network Operating System
c) Briefly describe the four basic operations called the machine cycle (4 marks)
d) Explain any two ways through which a company can acquire software (2 marks)
e) Explain any three key characteristics that differentiate Main Memory from Secondary Memory (6 marks)
f) “Application of computer technology has impacted the society in a big way”. Discuss the negative impact of computer technology in the context of the Kenyan society (6 marks)
g) Differentiate between the following terms (4 marks)
i. ROM and RAM
ii. BIOS and CMOS
iii. Internet and World wide web (www)
iv. Warm boot and Cold boot
PART TWO
a) Briefly discuss the roles played by following devices (4 marks)
i. Control Unit
ii. Cache Memory
b) The computer system consists of a number of components. Describe any four key components (8 marks)
c) Differentiate between open source and freeware software (2 mark)
d) Convert the following; (4 marks)
i. 47.5410 to binary
ii. 10110112 to decimal
e) Outline any four features of a Graphical User Interface (2 marks)
PART THREE
a) Identify four key requirements for connecting to the Internet (4 marks)
b) Describe the concept of packet switching as used in computer network data transmission (4 marks)
c) Identify four types of computer networks (2 marks)
d) Use a diagram to identify the layering concept of TCP/IP stalk and explain the functions of each layer (10 marks)
PART FOUR
a) Write the following acronym in full (4 Marks)
i. POST
ii. BIOS
iii. EROM
iv. DOS
b) Discuss three key factors to consider when buying a personal computer (6 marks)
c) Identify two categories of System Software and give examples (4 marks)
d) Describe three types of Operating Systems (6 marks)
PART FIVE
a) Describe any six functions of an operating system. (12 marks)
b) Discuss the four major computer generations in details (8 marks)
