2025 COMPUTER STUDIES WASSCE Questions & Answers Theory & OBJ
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Answers / Solutions
OBJECTIVES
Question 1
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(a)
- (i) X: Power button
- (ii) Y: USB ports
- (iii) Z: Optical drive
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(b)
- (i) X: The power button is used to turn the computer on or off.
- (ii) Y: USB ports are used to connect peripheral devices such as keyboards, mice, or external drives to the computer.
- (iii) Z: The optical drive is used to read or write CDs, DVDs, or Blu-ray discs.
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(c)
- (i) Motherboard
- (ii) Central Processing Unit (CPU)
- (iii) Power Supply Unit (PSU)
- (iv) Hard Drive or Solid-State Drive (HDD/SSD)
Question 2
-
(a)
Word processing refers to the creation, editing, formatting, and printing of text-based documents using a computer or other device. It involves using software applications, such as Microsoft Word, to produce and manipulate documents.
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(b)
- (i) A watermark is a faint image or text that appears in the background of a document. It can be used to indicate the document's status, such as "Draft" or "Confidential," or to add a logo or other graphic element.
- (ii) The Thesaurus is a feature in MS Word that provides synonyms, antonyms, and related words for a selected word. It helps users to find alternative words and phrases to improve the clarity and precision of their writing.
- (iii) A drop cap is a large capital letter that appears at the beginning of a paragraph or section. It's often used to add visual interest and style to a document, particularly in publications such as magazines, books, and newsletters.
- (iv) Find and Replace is a feature in MS Word that allows users to search for specific text or formatting within a document and replace it with new text or formatting. It's a useful tool for editing and revising documents quickly and efficiently.
Question 3
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(a)
A computer keyboard is an input device that allows users to type text, commands, and other input into a computer. It typically consists of a layout of keys, including alphabetic keys, numeric keys, function keys, and special keys, that are used to interact with software applications and operating systems.
-
(b)
- (i) Alphabetic keys
- (ii) Numeric keys
- (iii) Function keys
- (iv) Special keys
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(c)
- (i) Shift + Delete is a shortcut key combination that permanently deletes selected text or items without moving them to the Recycle Bin.
- (ii) Alt + F4 is a shortcut key combination that closes the currently active window or application.
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(d)
- (i) Ctrl + A is the shortcut key combination for selecting all text in a document.
- (ii) Ctrl + F2 or Ctrl + P (then click on "Preview" or use the preview pane) can be used to preview a document before printing, although the exact shortcut may vary depending on the application.
Question 4
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(a) Flowchart:
Start ↓ Input A, B, C ↓ SUM ← A + B - C ↓ Output SUM ↓ End
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(b) Flowchart:
Start ↓ Input N1, N2, N3, N4, N5 ↓ AVG ← SUM / 5 ↓ Output AVG ↓ End
Note: In flowchart (4b), 'SUM' is used in the AVG calculation but is not explicitly calculated within this specific flowchart. It's assumed to be the sum of N1 through N5.
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