WAEC Computer Studies 2025 Theory Past Questions

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(a) (i) X — Optical (CD/DVD) drive (ii) Y — Power button (iii) Z — USB ports (b) (i) X — Used for reading from or writing to a CD/DVD (ii) Y — Used to turn the computer on or off (iii) Z — Used to connect external devices like flash drives, keyboards and printers to the system (c) Any four: (i) Central Processing Unit (CPU) (ii) Random Access Memory (RAM) (iii) Motherboard (iv) Fan (v) Network Interface Card (NIC) (vi) Hard drive

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(a) Word processing is the creation, editing, formatting and printing of text-based documents using computer software (e.g. Microsoft Word, WordPad, WordPerfect). OR: It is the manipulation of text, documents and formatting to produce a professional-looking document. (b) (i) Watermark: a faint, semi-transparent image or text appearing behind the main content of a document, often used for copyright, branding or reflecting document status. (ii) Thesaurus: a tool in word processors that provides synonyms and antonyms for selected words. (iii) Drop cap: a large initial letter that extends down two or more lines of body text at the beginning of a paragraph/selection. (iv) Find and Replace: a feature that allows the user to search for specific words or phrases within a document and optionally replace them with other word(s) or phrase(s).

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(a) The computer keyboard is an input device made up of a set of keys arranged in a specific layout. Each key corresponds to a particular character, number or function, and when pressed, sends a signal to the computer. It is the primary means of entering text, commands and data into a computer. (b) Any four: Alphanumeric keys, Function keys, Modifier keys, Navigation keys, Numeric keypad. (c) (i) Shift + Delete: This permanently deletes the selected item without sending it to the Recycle Bin. (ii) Alt + F4: This closes the current active window or program. (d) (i) Ctrl + A — highlights/selects the entire text in a document. (ii) Ctrl + P — previews a document before printing.

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Flowchart: Start → Input A, B, C → SUM = A + B + C → Print SUM → End

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Flowchart: Start → Input V, W, X, Y, Z → SUM = V+W+X+Y+Z → AVG = SUM/5 → Print AVG → End

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10 CLS 20 FOR Student Number = 1 TO 10 30 Student Total Score = 0 40 PRINT "Student Number:"; Student Number 50 FOR Subject Number = 1 TO 5 60 INPUT "Enter score for subject "; Subject Number; ":"; Subject Score 70 Student Total Score = Student Total Score + Subject Score 80 NEXT Subject Number 90 Student Average Score = Student Total Score / 5 100 PRINT "Total Score:"; Student Total Score 110 PRINT "Average Score:"; Student Average Score 120 NEXT Student Number 130 END