COMPUTER STUDIES QUESTIONS WITH ANSWERS
Explain why telecommuting is not suitable for a doctor when carrying out an operation on a patient.3/1/2021 Explain why telecommuting is not suitable for a doctor when carrying out an operation on a patient.
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State the purpose of each of the following memories in a computer system. RAM and Hard disk3/1/2021 State the purpose of each of the following memories in a computer system. RAM and Hard disk
(a) RAM
Holds data that is urgently need by the processor, Random-access memory is a form of computer memory that can be read and changed in any order, typically used to store working data and machine code. (b) Hard disk Used to hold large volumes of data that is not urgently required by the processor — also for back up of OS and data. Give two reasons why the use of finger prints and voice input can be used as reliable forms of security in computer systems.
They cannot be:
Study the pseudocode below and determine its output.
1. (a) T = O
(b) M = O (c) K = I 2. (a) M M±T (b) T = T+5 (c) K = K+1 3. Repeat step 2 while K < 3 4. Write M,T 5. Exit The word race is appearing several times in a long story document composed using a DTP package. How would this word be safely replaced with the word content?.
State four functions which are specific to Network Operating Systems.
Distinguish between a formula and a function as used in spreadsheets.Explain why an intranet is a more secure way to share files within an organisation compared to the internet.
Define data communication.
(b) State two characteristics of an effective data communication system.
Characteristics of an effective data communication system
List four activities carried out by a data processing system.
(a) Explain why the following controls should be implemented for computer based systems (2mks)
(b) For each of the following give one reason why they are not allowed in a computer laboratory.
Explain the following terms as used in word processing (3mks)
Distinguish between Real, Integer and Character data types as used in programming ( 3mks)
Related SearchesState two health issues that may result from prolonged use of computers
Arrange the following data units in ascending order of size (2mks)BYTE, FILE, BIT, NIBBLE
BIT, NIBBLE, BYTE, FILE (a) explain Binary Coded Decimal code of data representation (1mk)
(b) Write the number 45110 in BCD notation (1mk)
Outline two ways in which computer can be used in hotels (2mks)
Name two types of relationships that can be applied in database design (2mks)
Define the term artificial intelligence (2 mks)
Artificial intelligence can be defined as the field of study concerned with using computer hardware and software to simulate human thought processes such as imagination and intuition. Consider the linear arrays:
(a) Name the control structure depicted by the flowchart below
(b) Explain the following terms as used in program implementation (2mks)
(a) A serial file comprises of records placed in positions 1 to 10. State the position of the end of file marker (1 mk)
(b) State the purpose of each of the following (2mks)(i) File server software
(a) State the purpose of registers in a computer system (1mk)To hold data and instructions temporarily as they are being processed in the CPU ( 2mks) (b) Name two multi-programming operating systems (2mks)Windows 9X, Linux, Windows 2000, and Windows NT
The cells K3 to K10 of a worksheet contain remarks on student’s performance such as very good, good, fair and fail depending on the average mark. Write a formula that can be used to count all students who have the remark “very good” (3mks)
(a) What is a disk formatting? (1mk)
To prepare storage medium by defining tracks and sectors where data will be placed in compliance with specific operating system requirements.
(b) Indicate whether the following devices are used for input or output (2mks)
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