To state the main idea of what you read in your own words
<span>Best Answer is
(D)</span>
Any<span> materials not protected by copyright, patent laws or trademark are referred to as copyright. Generally, the public owns these works, and anyone is allowed to use public domain works without obtaining permission. There are various common ways that these works may end up arriving in the public domain. One of those ways includes the expiration of copyright. The copyright owner may also fail to follow renewal rules that govern copyright. </span>The copyright owner may as well decide to place his or her works deliberately in the public <span>domain.</span>
Answer:
The answer should be optics...
Explanation:
Computer communications describes a process in which two or more computers or devices transfer data, instructions, and information. ... A sending device that initiates an instruction to transmit data, instructions, or information. A communications device that connects the sending device to a communications channel.
<span>The fourth generation of computers was marked by the introduction of microprocessors. </span>
