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2. Which generation of computers used vacuum tubes?
a. First b. Third
c. Second d. Fifth
3. Which of the following is not a feature of first generation computers?
a. Huge in size b. Very Expensive
c. Uses ICs d. All of these
4. Which of the following was created by Prof. Howard Aikens?
a. Mark-I b. ENIAC
c. UNIVAC d. Microprocessor
5. In which year the IBM introduced the PC-XT computer?
a. 1981 b. 1983
c. 1985 d. 1987
B. Fill in the blanks using the words given below:
1971, Presper Eckert, 1981, Charles Babbage, Windows
1. IBM released their first line of desktop PCs in .................................
2. ................................ invented the Analytical Engine in 1833.
3. ENIAC was built by John Mauchly and .................................
4. Intel introduced the first microprocessor in .................................
5. The original name of ................................ was Interface Manager.
C. Write ‘T’ for true and ‘F’ for false.
1. Magnetic tapes are used to store data. ..........................
2. The first electronic computer ENIAC weighed more
than 27 tons. ..........................
3. The full form of LSI is low scale integration. ..........................
4. Early humans tied knots in ropes and made marks on clay to
keep records. ..........................
Evolution of Computers 15

