2025 WAEC COMPUTER: 2025 WAEC Computer Midnight Questions and Answers (4574)

(1a)

An output device is any peripheral device that converts machine-readable information into people-readable form.

(1b)

(i)Impact Printer

(ii)Non-impact printer

(1ci)

(1cii)

The output of an OR gate with inputs "O" and "I" is "1"

(1d)

(i)AND gate

(ii)OR gate

2

(3a)
TABULATE

1 - USe of an anti-virus - ✓
2 - Use of backup - ✓
3 - Use of biometrics - ✓
4 - Use of folder - ✓
5 - Use of manual file - ✓
6 - Use of password - ✓

(3b)
(i)Irregular power supply can limit access to computer files.
(ii)Computer files are more expensive to set up compared to manual files.

(3ci)
Charts in MS Excel helps to present information contained in the worksheet in a graphic format i.e Column, Line, Pie, Bar, and scatter charts.

(3cii)
(i)Bar chart
(ii)Pie chart

(4ai)

Slide Master is the top slide that controls all information about the theme, layout, background, color, fonts, and positioning of all slides. 

(4aii)

(i)On the View tab, click Slide Master.

(ii)In the left pane that contains the slide master and layout thumbnails, right-click the layout thumbnail that you want to rename, and then click Rename Layout.

(iii)In the Rename Layout box, type the new name of the layout, and then click Rename.

(iv)On the Slide Master tab, in the Close group, click Close Master View.

(4bi)

Handout master: Handout master in ms PowerPoint is used change or edit  the appearance and layout  of a presentation's printed handout.

(4bii)Notes master: notes master in ms PowerPoint is a feature that allows you to control the settings of the notes section of PowerPoint.

(5)
SUB palindrome (w$)
FOR i = LEN(w$) TO 1 STEP -1
rev$ = rev$ + MID$(w$, i, 1)
NEXT i
IF rev$ = w$ THEN
PRINT "The given word is palindrome"
ELSE
PRINT "The given word is not palindrome"
END IF
END SUB