COMPUTER STUDIES QUESTIONS WITH ANSWERS
List four stages involved in the data processing cycle (3 mks)
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What is meant by the term ‘dry running’ as used in program development?
Explain why computers use binary numbers in data representation (2mks)
Distinguish between a compiler and an interpreter (2mks)
Explain the following terms as used in desktop publishing, Embedded object and Auto flow
a) Embedded object: a separate object/image/graphic/clip imported into the file permanently
b) Autoflow: Facility that allows text/cursor to flow automatically from one text box to the next when the first text is full. Describe two ways ¡n which a computer can represent a positive number and a negative number.31/12/2020 Describe two ways in which a computer can represent a positive number and a negative number.
(b) A particular computer stores numbers in a single 8-bit word. How would it represent 0.312510 ?
(c) What is the decimal equivalent of the number 1.01112? (d) Perform the decimal subtraction 1410- 610 using (i) regular binary; (ii) one’s complement.
Study the flow chart below and answer the questions that follow.
If DATA is the following sorted list of 13 elements, such that N 13:(where N is the number of elements in the list),1 1, 22, 30, 33, 40, 44, 55, 60, 66, 77,
80, 88, 99. (a) Determine the output from the flowchart if ITEM is: (1) 40 (ii) 99 (iii) 120 (iv) 5 (b) Explain the purpose of this flowchart. (c) Write a pseudocode for the above flowchart. Study the flowchart below and answer the questions that follow (a) Write a high level language program for the above flowchart (7mks)
Study the flowchart segment below and state the last value printed from the flowchart. (2mks)
Briefly explain the purpose of the following types of program documentation
(a) User manual
(a) Distinguish between machine and assembly language (2mks)
(b) State the type of translator necessary for a program written in:
(a) Explain the term nibbles as used in data representation in computersA nibble refers to a half a byte or 4 bits ( A byte is equivalent to 8 bits) (b) Perform the following binary arithmetic giving the answers in decimal notation.List four stages in data collection.
(b) What is meant by the following:
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