Question

Daniel is writing a research paper on the topic of communications systems in the twentieth century. Read what he already knows and what he wants to know:

What I Know: Cellphones, radio, television, and computers were all inventions that came into use in the twentieth century.

What I Want to Know: Which inventions have the most impact on our communications today?

Daniel then conducted research. Which of his researched facts answer his “What I Want to Know” question? Select all that apply.


(1) Alexander Graham Bell invented the telephone in 1876.


(2)The telephone was the precursor to the cellphone.


(3) Cellphones and other digital devices keep us continually connected to the Internet.



(4) Nearly 75 percent of homes in the U.S. have Internet access on their computers.



(5) Radio was highly popular from 1920 to 1950.


(6) Almost 80 percent of households in the U.S. have computers.



(7) 91 percent of adults in the U.S. use cellphones.

Answer 1

Cellphones, the Internet, and radio have had the most impact on our communications today.

Step-by-step explanation:

The inventions that have had the most impact on our communications today include:

1. Cellphones: Cellphones have revolutionized communication by allowing us to make calls, send texts, and access the internet from anywhere. Today, 91 percent of adults in the U.S. use cellphones.
2. Internet: The widespread use of the internet on computers and digital devices like cellphones has kept us continually connected, allowing for instant messaging, email, video calls, and social media communication.
3. Radio: Although radio was popular from 1920 to 1950, it laid the foundation for later communication technologies, such as television and streaming services that we use today.