KwickClips Computer Systems · 40 sec · free
What is resolution?
Short answer. The number of pixels across and down, like 1920 x 1080.
When is a projector better?
When many people must see at once.
Visual output
| Device | Key word |
|---|---|
| Monitor | pixels |
| Resolution | more, sharper |
| Projector | lumens |
Remember
| More pixels, sharper picture |
| Projectors for big groups |
Why does one screen look sharper than another? Here is why. A monitor makes pictures from pixels. More pixels mean sharper resolution. A projector's brightness is in lumens. More pixels, sharper picture. Projectors are for big groups.
This clip is from the full lesson: Output Devices — 6 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 9 Computer Applications (165), CBSE Class 10 Information Technology (402), CBSE Class 11 Computer Science (083), CBSE Class 11 Computer Science Essentials (083)
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