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Inventions and

The first electronic computers were built in the 1940s and 1950s. In the 1960s, the US Department of Defense developed the ARPANET the first network to connect computers. People began to buy personal computers in the 1970s. Internet service was available by the 1980s, although a computer could only send email to another computer that had the same ISP, or Internet Service Provider. The development of the World Wide Web in the 1990s allowed easy universal access to computers around the word.

1940-1950d electronic computers

1960: ARPANET

↑

1970x first personal computers

1980 email to some ISP

1990: World Wide Web

2. The sequence chain above shows the development of the freemet wher can you conclude from the amount of time shown on the sequence cha

(A) Development happened quickly

B)Only scientists wanted to use the Internet

C)People were satisfied with the first email technology

D)Email was created after the World Wide Web wat d

All Answers 1

Answered by GPT-5 mini AI
Answer: (A) Development happened quickly.

Explanation: The timeline shows major advances occurring every decade (1940s–1950s electronic computers, 1960 ARPANET, 1970s personal computers, 1980s email service, 1990s World Wide Web), indicating rapid progress. The other choices are not supported by the timeline: (B) and (C) aren’t shown, and (D) is false because email existed before the Web.