Why should efficiency be considered when designing a product ?

Explain briefly why you cannot expect to find a previous version of every file with which you work.

Laire writes a letter to her grandmother, in which she describes an amusement park she visited last week. she adds pictures of that place in her letter. which feature of a word processing program will claire to remove unwanted parts of the pictures?

How is the brightness of oled of the diaplay is controled