Colossus was developed during world war ii. what was it, and what was it used for?
a) a massive tank developed to move over land and sea
b) the atomic bomb that destroyed hiroshima and nagasaki
c) an aircraft carrier that held more than 100 jet airplanes
d) the first military computer that cracked the german code

The correct answer is D. Colossus was developed during World War II. It was the first military computer that cracked the German code.

Explanation:

The Colossus machines were the first electronic computing devices used by the British to read German encrypted communications during World War II. Colossus was one of the first digital computers.

The Colossus machine was originally designed by Tommy Flowers at the Post Office Research Station, Dollis Hill. The prototype, Colossus Mark I, came into operation at Bletchley Park from February 1944. An improved version, the Colossus Mark II was installed in June 1944, and about ten Colossus were built until the end of the war.

the u.s. department of labor is a cabinet-level federal agency that supports the american labor force. it has three overall functions. first, it protects the rights of workers and retirees. second, it provides job training. third, it provides statistics related to working, prices, and income.

president franklin roosevelt supported the tva as part of his first new deal measures approved by congress in 1933. this new agency was designed to control floods, produce electric power, and improve the lives of people living in the tennessee valley. the tva accomplished many of these goals despite problems.