Computer and Information Technology part -4

Total Questions: 50

21. The IC chips are made of- [Uttarakhand P.C.S. (Pre) 2007]

Correct Answer: (b) semiconductor
Solution:

Integrated circuit is a set of electronic circuits on one small plate of semiconductor material normally silicon. After its invention in 1958, it is used in place of transistors in the computer and hence we can say that miniaturization of present day computers has been possible due to these integrated circuit units.

22. What is the material used in the manufacturing of IC chips in computers? [R.A.S/R.T.S. (Pre) 2012, M.P.P.C.S. (Pre) 2000, U.P.P.C.S. (Mains) 2004]

Correct Answer: (a) Silicon
Solution:

Silicon is the material used in manufacturing of IC chips in computer. It is a semiconductor and in 1958 J.S. Kilby developed a complete integrated circuit in the form of chip, which is called IC-chip.

23. In computers chips is made up of : [Chhattisgarh P.C.S. (Pre) 2019]

Correct Answer: (b) A thin layer of silicon.
Solution:

Silicon is the material used in manufacturing of IC chips in computer. It is a semiconductor and in 1958 J.S. Kilby developed a complete integrated circuit in the form of chip, which is called IC-chip.

24. What material is used to coat the integrated circuit (IC) chip? [Chhattisgarh P.C.S. (Pre) 2013]

Correct Answer: (a) Silicon
Solution:

The material primarily used to coat an integrated circuit (IC) chip is Silicon.

Silicon Dioxide (SiOβ‚‚): While the chip itself is made of silicon, it's typically coated with a layer of silicon dioxide. This layer acts as an insulator, protecting the delicate circuitry from environmental factors like moisture and contaminants, and also provides electrical isolation between different layers of the chip.

25. The IC chip used in computers is made of – [U.P.P.S.C. (R.L.) 2014]

Correct Answer: (d) Silicon
Solution:

The IC chip used in computers is made of Silicon.

Silicon is a semiconductor material, meaning it has electrical conductivity between that of a conductor (like copper) and an insulator (like glass). This property makes it ideal for controlling the flow of electricity in the tiny transistors and other components that make up an integrated circuit.

While silica (silicon dioxide) is used as an insulating layer on the chip, the base material of the IC chip itself is primarily silicon.

26. IC chips for computers are usually made of: [Jharkhand P.C.S. (Pre) 2010 Uttarakhand P.C.S. (Pre) 2010 U.P.P.C.S. (Mains) 2006 U.P.P.C.S. (Pre) 2004 U.P.P.C.S. (Pre) 2002]

Correct Answer: (c) Silicon
Solution:

It's the semiconductor properties of silicon that make it the ideal material for the transistors and other components within integrated circuits, in 1958 J.S. Kilby developed a complete integrated circuit in the form of chip, which is called IC-chip.

27. In the integrated circuit the chip of semiconductor used is made up of: [Uttarakhand P.C.S. (Pre) 2006]

Correct Answer: (c) Silicon
Solution:

It's the semiconductor properties of silicon that make it the ideal material for the transistors and other components within integrated circuits, in 1958 J.S. Kilby developed a complete integrated circuit in the form of chip, which is called IC-chip.

28. Which one of the following is the newest substance being used in the production of computer chips? [U.P. U.D.A/L.D.A. (Mains) 2010]

Correct Answer: (d) Silicon
Solution:

Silicon is the newest substance being used in the production of computer chips, also called as integrated chips or IC chips. These chips can be used to store more data in a small space.

29. ICs are classified on the basis of: [U.P. Lower Sub. (Mains) 2015]

Correct Answer: (a) Number of transistors.
Solution:
  1. Small Scale Integration (SSI) - 3 to 30 transistors/chips.
  2. Medium Scale Integration (MSI) - 30 to 300 transistors/chips.
  3. Large Scale Integration (LSI) - 300 to 3,000 transistors/chip.
  4. Very Large Scale Integration (VLSI) - more than 3000 transistors/chip.
  5. Ultra-Large-Scale Integration (ULSI) - Billions of transistors and beyond.

30. Which of the following statements is correct? [R.A.S/R.T.S. (Pre) 2013]

Correct Answer: (d) Modem converts the analog signal into digital signal and vice-versa.
Solution:

The full form of the modem is Modulator/Demodulator. It converts digital signal to analog signal and analog signal to digital signal.