1. OSs allow users to control access to their computers via use of a(n) ____________ and a(n)…

1. OSs allow users to control access to their computers via
use of a(n) ____________ and a(n) ____________.

2. Software or hardware that is __________ means that it is
privately owned and controlled by a company.

3. Linux is __________ ______________ software┬Śmeaning any
programmer can download it from the Internet for free and modify it with
suggested improvements.