Q: When was the differential analyzer conceptualized?
A.1872
B. 1876
C.1927
D. 1950s
Correct Option: BExplanation:
Explanation: The differential analyzer was conceptualized by James Thomson, the elder brother of William Thomson, in 1876.
Q: What was the main reason for the obsolescence of analog computing machines by the 1950s?
A. They lacked versatility and accuracy.
B.They were too expensive to build.
C.They were too large and heavy.
D.The success of digital electronic computers.
Correct Option: DExplanation:
Explanation: By the 1950s, the success of digital electronic computers had spelled the end for most analog computing machines.
Q: Computers that are portable and convenient to use for users who travel, are known as
A.supercomputers
B.minicomputers
C.mainframe computers
D.laptops
Correct Option: CExplanation: mainframe computers
Q: Pascaline is also known by
A.abacus
B.adding machine
C.division machine
D.difference machine
Correct Option: BExplanation: <p><strong>Pascaline</strong> (1642)</p>
<p><strong>Inventor</strong>: Blaise Pascal (France)</p>
<p><strong>Characteristics</strong>:</p>
<ul>
<li>First mechanical adding machine. </li>
<li>It was structured like rectangular box, with eight disc (represent number of units).</li>
</ul>
<p><strong>Applications</strong>:</p>
<p>Perform addition and subtraction of two numbers.<br />Mainly designed with regard to the pressure of liquid.</p>
<p> </p>
Q: These are specially designed computers that perform complex calculations extremely rapidly.
A.Servers
B.Supercomputers
C.Laptops
D.Mainframes
Correct Option: BExplanation: Supercomputers
Q: Which of the following is a small microprocessor based computer designed to beused by oneperson ata time?
A.Netbook
B.Supercomputer
C.Personal computer
D.Notebook
Correct Option: CExplanation: Personal computer [SBI Clerk 2014]
Q: Who invented the differential analyzer?
A.Sir William Thomson
B.Giovanni Plana
C. Pierre Jaquet-Droz
D.Vannevar Bush
Correct Option: DExplanation:
Explanation: Vannevar Bush and others developed mechanical differential analyzers starting in the 1920s. Sir William Thomson had discussed the possible construction of such calculators earlier but had been stymied by the limited output torque of the ball-and-disk integrators.
Q: How was data input provided to the Analytical Engine?
A. Through a printer
B.Through punched cards
C. Through a keyboard
D.Through a mouse
Correct Option: BExplanation:
Explanation: Data input was provided to the Analytical Engine via punched cards, a method used at the time to direct mechanical looms.
Q: What was the name of the first modern analog computer and who invented it?
A.a. Tide-predicting machine, invented by Sir William Thomson
B.b. Difference Engine, invented by Charles Babbage
C.c. Analytical Engine, invented by Charles Babbage
D.d. Differential Analyzer, built by H. L. Hazen and Vannevar Bush
Correct Option: DExplanation:
Explanation: The differential analyzer was the first modern analog computer, which was built by H. L. Hazen and Vannevar Bush at MIT starting in 1927.
Q: When did the first digital electronic calculating machines appear?
A.During World War I.
B.During World War II.
C.During the Industrial Revolution.
D.During the late 19th century.
Correct Option: BExplanation:
Explanation: The first digital electronic calculating machines were developed during World War II.