ITPEC FE Morning April 2022 Question 14
Topic: Multimedia
A 12-point character is to be displayed on a 96-dpi display in bitmap. How many dots is the height of a square font? Here, 1 point is 1/72 inch.
Explanation
16 dots — convert the point size to inches, then multiply by the dots per inch.
- •Height in inches: 12 points × 1/72 inch = 12 ÷ 72 = 1 ÷ 6 inch
- •Height in dots: 96 × (1 ÷ 6) = 16
Answer (d)
Why not others:
- •(a) 8 — 96 ÷ 12, dividing the resolution by the point size instead of converting points to inches
- •(b) 9 — 12 × 72 ÷ 96, the conversion done backwards: multiplying by 72 and dividing by the dpi
- •(c) 12 — takes one point as one dot, which is true only on a 72-dpi display
Key rule: Dots = size in inches × dpi, and size in inches = points ÷ 72.
Multimedia · AI-written, may contain errors
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