Answer:
Cost. One of the biggest drawbacks of any proprietary software is the licensing fee. ...
Developer Support. ...
Security Issues. ...
Customization.
Explanation:
Professional: Using social media to advertise a company you created
Unprofessional: Using social media to watch cat videos
Answer:
trackball
Explanation:
A trackball can be seen on a mouse.
You could Factory Reset a computer or you could smash it with a hammer
