Remember PPI
Full name: Pixels Per Inch
Memory aid: Pixels Packed into one Inch.
PPI is not the same as a printer's dots per inch.
Study area: Screens & image formats · Batch 1
Relevant study for: CompTIA A+ Core 1 220-1201
Practice with exam flashcards →Hardware & Components / Knowledge library
PPI — Pixels Per Inch
Measures display pixel density.
Why learn PPI — Pixels Per Inch?
Measures display pixel density.
Where it came from
PPI is not the same as a printer's dots per inch.
- Memory aid (a learning cue, not the expansion): Pixels Packed into one Inch.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand PPI: Pixels Per Inch.
- Recall this memory aid: Pixels Packed into one Inch.
- Explain the practical use: Measures display pixel density.
- Explain this distinction: PPI is not the same as a printer's dots per inch.
- Identify PPI in a device specification, architecture diagram, or system inventory.
Documentation and sources
- Samsung LCD backlighting and OLED pixels (global.samsungdisplay.com)
- VESA standards (vesa.org)