A water company sends out clerks to read meters. The data collected by the clerks is then fed into the computer and then all bills are printed at the same time.
(a)State two advantages of this approach;
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The C directory of a computer has folders named Form 1, Form 2,Form 3 and Form 4. Each class has students' folders named according to their admission number. The students created their own folder for subjects they are studying based on the table shown below:
(a) A form four student intends to create a folder named proj to store project documents.
State the path for the project folder.
(i) work is not lost in case the hard disk fails;
Distinguish between a formula and a function as used in spreadsheets.
List two career opportunities directly associated with computer networking.
Explain why an intranet is a more secure way to share files within an organisation compared to the Internet.
Students of a school intend to elect their school captain by secret ballot. State three ways in which computers can be used to improve the election process.
Headache, back and neck pain may result from the use of computers.
State how each of them can be minimised.
Headache
An organisation intends to replace an existing system by carrying out the process in stages.12/1/2021 An organisation intends to replace an existing system by carrying out the process in stages.
(a) Name this implementation strategy;
Technical feasibility:
State the functions of each of the following keys on the computer keyboard:
(a) backspace;
Convert each of the following binary numbers to decimal equivalent given that the left most digit is a sign bit:
(a) 00101101
(b) 11001001 State two ways in which software errors can be prevented in program development.
Explain two ways in which the use of Internet could make reporting of corruption easier.
Interactiveness:
Pesa Tele Company has offices in Nairobi and Kampala connected in a network. The management is convinced that someone is illegally gaining access to the data in their computers. State three ways in which the company can overcome this problem.
Convert the decimal number 20.373 to its binary number system equivalent. (3 marks)0.37310 = 01011111011111002The binary result of 20.37310 is therefore
Combine them all;
State the hardware technological differences between the second generation and the third generation computers. (2 marks)
State two ways of ensuring proper ventilation in a computer room. (2 marks)
State the meaning of the term disk defragmentation as used in computers.
(a) generating receipts where carbon copies are required;
(b)an architectural drawing where precision is required; (c) producing document output for a visually impaired person.
(a)Carbon copies - impact printers e.g. dot matrix.
(b)Architectural design - plotter (c)Visual impairment - speakers/brailles State the meaning of the term disk defragmentation as used in computers.
State the purpose of disk defragmentation.
Distinguish between a systems administrator and a database administrator as used in computers.10/1/2021 Distinguish between a systems administrator and a database administrator as used in computers.
Distinguish between systems administrator and database administrator
Explain two uses of a system documentation in system development.
Uses of system documentation
State three reasons why it is important to define datatypes of fields in a database correctly.8/1/2021 State three reasons why it is important to define datatypes of fields in a database correctly.
Reasons for defining datatypes in databases
State two advantages of making payments through a mobile phone.
Advantages of mobile phone in payments
A computer technician found it necessary to disable a firewall when working on a computer system. State two reasons that may have necessitated disabling of the firewall.
When firewall is disabled
State three circumstances under which voice input would be preferred over other methods of data capture.
Circumstance for voice input
List four factors to be considered when acquiring a printer.
Factors to consider when acquiring a printer
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