In the late 1960s, which of the following inventions transformed computer technology?

A. invention of the microchip
B. invention of vacuum tubes
C. invention of the transistor
D. invention of the internet


Answer: A

History

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Lyndon Johnson secured passage of the Civil Rights Act of 1964 by

a. appealing to the public with a televised "fireside chat." b. gaining support from leading Republicans in Congress. c. persuading southern congressmen that segregation was morally wrong. d. promising segregationists that enforcement of the law would be left entirely in the hands of state officials. e. getting the support of the Supreme Court.

History

What was the primary purpose for requiring all students in American schools to recite the Pledge of Allegiance beginning in the 1890s?

A) It honored Columbus on the 400th anniversary of his arrival to the New World. B) It Americanized the immigrant masses who were coming to the United States at this time. C) It was part of a campaign to boost public education enrollment. D) It advanced religious values by making students realize this was "one nation, under God."

History

Lenin was forced to change his plans when he realized that a worldwide revolution would not take place. What was this new strategy?

A) He entered an era of "war communism." B) He established a new system of economic compliance with socialism and capitalism. C) The strategy that one socialist state can stand alone and exist in a capitalist world with a few minor adjustments D) He used the Red Army to give the people what they needed: land, food, and peace. E) He instituted a new policy of moderation and openness to working with other countries economically.

History

Which of the following inventions did Thomas Edison create the first commercially successful version of in the year 1879?

A) The steam engine B) The incandescent lightbulb C) The telephone D) The mechanized elevator E) The typewriter

History