_____ lines, the most expensive type of digital line, are used primarily by large companies, phone companies, and service providers.

A ________ is a form that enables users to view but not change data

A) read-only form B) data entry form C) sub form D) split form

Sometimes when you magnify a picture on your computer screen, lines that should be straight lines appear to be jagged. This effect is called _____.

A. anti-aliasing B. aliasing C. dithering D. indexing