State three characteristics of mainframe computers.
Characteristics of mainframe
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![]() State three features of fifth generation computers.
Features of fifth generation computers
![]() State the hardware technological differences between the second generation and the third generation computers. (2 marks)
![]() State two advantages of using portable computers.
Advantages of portable computers
![]() Differentiate between analogue data and digital data as used in computers. (2 marks)
![]() State two reasons for the increased use of laptop computers in government offices. (2 marks)
Reasons for the preference for laptops.
![]() Describe each of the following types of computers: hybrid; and embedded.
![]() (a) (i) What is a computer keyboard? (1mk)
Input device with keys for keying in data in the form of characters
List four types of keys found on a computer keyboard. Give an example of each. (4mks)![]() List three differences between a microcomputer and a super computer (3mks)Microcomputers
Supercomputers
![]() Define authenticity as used in software selection
![]() Explain why smart phones and personal digital assistants (PDAs) may be regarded as personal computers.
PDAs and smart phones are powered by microprocessors, which coordinate all of the functions according to programmed instructions just like all other personal computers.
State four reasons why a mobile phone is regarded as a computer.![]() (a) List four devices which though traditionally analog, have evolved to digital systems.
(b) State four advantages of digital technology over analog technology.
![]() Distinguish between general and special purpose computers
General purpose computers are designed to be able to perform variety of tasks when loaded with appropriate programs, while special purpose computers are designed to accomplish a single task.
![]() Differentiate between discrete and analog data
![]() Computers can be classified in many ways.
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