Feedback is a check within a system, which ensures that the objectives of the system are achieved. They assist the system by monitoring the environment in which it operates in order to find out any deviation. If any deviation is detected, then the appropriate steps are taken to rectify this error.
Kavungya answered the question on November 6, 2019 at 06:07
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(i) System control
(ii) Sub-systems(Solved)
Explain the following system characteristics
(i) System control
(ii) Sub-systems
Date posted: November 6, 2019. Answers (1)
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Explain the difference between Trojan horse and Hoax viruses.
Date posted: November 6, 2019. Answers (1)
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(i) Run time problems
(ii) Corrupted...(Solved)
Computer can fail to work due to problems associated with operating system. Explain how the following problems can be corrected.
(i) Run time problems
(ii) Corrupted registry
Date posted: November 6, 2019. Answers (1)
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(i) Interrupt
(ii) Trouble shooting.
(iii) Clock speed.(Solved)
State the meaning of the following operating systems terms:
(i) Interrupt
(ii) Trouble shooting.
(iii) Clock speed.
Date posted: November 6, 2019. Answers (1)
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Differentiate between a word and a word length as used in data representation.
Date posted: November 6, 2019. Answers (1)
- Using one's complement, perform the following binary arithmetic leaving the answer in decimal notation.
11012 - 1001012 (Solved)
Using one's complement, perform the following binary arithmetic leaving the answer in decimal notation.
11012 - 1001012
Date posted: November 6, 2019. Answers (1)
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Using two's complement, show how the arithmetic below would be carried out on a 8 – bit computer system. (+54) – (+29).
Date posted: November 6, 2019. Answers (1)
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A car rental firm leases its cars for Kshs. 2500.00 per day. The manager gives a discount based on the number of days that the car is rented. If the rental period is greater than or equals to 7 days then a 25% discount is given. Write a pseudo-code to accept a car number and the rental period, and calculate the total amount earned by the company when a car is leased.
Date posted: November 6, 2019. Answers (1)
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Give one reason to the growth of communication industry in Kenya.
Date posted: November 6, 2019. Answers (1)
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i) Columns
ii) Rows(Solved)
Define the following terms as used in a worksheet.
i) Columns
ii) Rows
Date posted: November 6, 2019. Answers (1)
- State the cursor action when the following keyboard keys are pressed
i. Delete key
ii. Insert key
iii. Pgup (page up) key
iv. Pgdwn (page down) key(Solved)
State the cursor action when the following keyboard keys are pressed
i. Delete key
ii. Insert key
iii. Pgup (page up) key
iv. Pgdwn (page down) key
Date posted: November 6, 2019. Answers (1)
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State any two laws governing protection of information.
Date posted: November 6, 2019. Answers (1)
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State the function of an Address register.
Date posted: November 6, 2019. Answers (1)
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Give three reasons why a company may prefer a tailor made software over off the shelf software.
Date posted: November 6, 2019. Answers (1)
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Distinguish between an integrated software and a software suite.
Date posted: November 6, 2019. Answers (1)
- State the functions of the following keyboard key combinations
(a) CTRL + ESC: …………………………………………………………………………
(b) ALT + F4: …………………………………………………………………………….
(c) CTRL + ALT + DEL:…………………………………………………………………(Solved)
State the functions of the following keyboard key combinations
(a) CTRL + ESC: …………………………………………………………………………
(b) ALT + F4: …………………………………………………………………………….
(c) CTRL + ALT + DEL:…………………………………………………………………
Date posted: November 6, 2019. Answers (1)
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State any two sensory devices used in virtual reality.
Date posted: October 29, 2019. Answers (1)
- Broilers and layers are kept near large urban centres mainly because?
A. Transportation of the products is efficient
B. There is a ready market
C. Chicken feed is...(Solved)
Broilers and layers are kept near large urban centres mainly because?
A. Transportation of the products is efficient
B. There is a ready market
C. Chicken feed is readily available
D. Urban centres encourage free trade
Date posted: October 25, 2019. Answers (1)
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Find the BCD equivalent of 3710
Date posted: October 11, 2019. Answers (1)
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5710 – 2910 (Solved)
Workout using two’s complements
5710 – 2910
Date posted: October 11, 2019. Answers (1)