this is a computer concept question. What is the main idea of this article?
“Technology Bytes”
➢ A farmer in the mid-1800s worked from sunup to sundown and produced only enough food to feed about four people. One farmer today produces food for 101 people.
➢ Thanks to advances in public health technology, human life expectancy has increased from 47 years in 1900 to 75 years today.
➢ Integrated circuits contain thousands of electronic parts collected on a thin chip of silicon so small it could pass through the eye of a needle.
➢ United States companies, which exchange data electronically, rose from almost none in 1987 to 45,000 in 1993.
➢ In 1991, American companies for the first time spent more on computers and communications equipment than they did on industrial, mining, farming, and construction materials.
➢ While computers and other electronic gadgets are getting smaller, the amount of information that can be accessed through them keeps growing.
➢ Fiber optics is preferred over traditional copper wiring because light (which carries information) travels farther and faster without losing its clarity. The fibers, which are no thicker than a human hair, carry more information than telephone wires.
➢ The Internet was started in 1969, during the Cold War, so the Defense Department’s Advanced Research Projects Agency could share computer resources. This electronic roadway consists of more than 10,000 networks, linking universities, libraries, science foundations, government, and businesses. It is estimated that 15 million to 30 million people now use the Internet.
Tagged with: communications equipment • computer resources • computers and communications • construction materials • copper wiring • electronic gadgets • exchange data • eye of a needle • fiber optics • health technology • human hair • life expectancy • mid 1800s • research projects agency • roadway • science foundations • sunup to sundown • technology bytes • telephone wires • united states companies
Filed under: Integrated Electronic Circuits
Like this post? Subscribe to my RSS feed and get loads more!
Answers isn’t for cheating on your homework. So get honest grades and don’t post this crud on here. It won’t be your work, and your teacher would notice that the writing doesn’t seem like yours.