Programs are software programs that are distributed on the honor system.

shareware programs

Explanation:

Shareware is a type of proprietary software which is initially provided free of charge to users, who are allowed and encouraged to make and share copies of the program. Shareware is often offered as a download from a website or on a compact disc included with a magazine. Shareware differs from open-source software, in which the source code is available for anyone to inspect and alter; and freeware, which is software distributed at no cost to the user but without source code being made available.

1. a

2. a

3. d

explanation:

answerdestination end device address;