Answer:

Explanation:
The statements are logically equivalent if they have the same truth tables. So let´s use truth tables in order to determine if they are logically equivalent or not:
The picture that I attached you shows the truth table for each case. As you can see in the highlight columns:

They are logically equivalent because they have exactly the same truth values between each other. Hence, we can conclude that they are logically equivalent.
Answer:
Interface
Explanation:
Definition- "The interface of a particular piece of computer software is its presentation on the screen and how easy it is to operate. <em>...the development of better user interfaces.</em>"
Umm
This is to bunch of questions..
Answer:
It's C
Explanation:
Adware displays or directs the users to an advertisement, while spyware performs espionage on the computer`s activity.