In the $1950$s$,$ only large businesses could afford to use mainfame computes, computers that were the size of a room, to support their business operations.

In the $1970\text{'}$s$,$ that all changed when the $\_\_\_\_\_\_\_\_\_\_\_$ was developed. Small businesses could use word processing, spreadsheets, and databases computer programs for business operations.

Group of answer choices

Internet

client$-$server

PC or personal computer