The first generation of computers was based on _______....

MCQ

The first generation of computers was based on _______.

transistor

integrated circuit

VLSI microprocessor

vacuum tube

Correct Answer: D

The computer has evolved from a large-sized simple calculating machine to a much smaller machine capable of multiple functionalities. Each generation of computer is designed based on the hardware technology used leading to better, cheaper and powerful computers that are faster and efficient than their predecessors.

Generation of Computers based on Hardware
Generation	Description
1st Generation (1940 – 1956)	used vacuum tubes for circuitry and magnetic drums for memory very expensive, large in size, slow in processing and had less storage capacity used machine level language for programming
2nd Generation (1956 – 1963)	transistors were used instead of vacuum tube smaller, faster, cheaper, more energy-efficient and more reliable than the previous generation High-level programming languages were also being developed such as COBOL, FORTRAN
3rd Generation (1964 – 1971)	used Integrated Circuit(IC) consisting of the capacity of 300 transistors small in size, low cost, large memory and high processing speed known as minicomputers
4th Generation (1972 – 2010)	used VLSI (Very Large Scale Integration) became possible to place CPU on a single chip known as microcomputers
5th Generation (2010 – to date)	based on artificial intelligence portable, superior processing speed, and network connectivity the aim is to develop devices that will respond to natural language inputs and be capable of learning

Hence, it can be concluded from the table that vacuum tubes were used by the first generation computers.

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MCQ

Which one of the following is not it member of Cabinet Mission ?

Lord Patrick Lawrence

Sir Stafford Cripps

A. V. Alexander

Mount Batten

Correct Answer: D

The correct answer is Mount Batten.

Key Points

Cabinet Mission (1946):
- This mission to India was launched by the British Government in March 1946 to discuss plans for the transfer of power from the British Raj to Indian leadership.
- The members of the mission were:
  - Lord Patrick-Lawrence, the Secretary of State for India,
  - Sir Stafford Cripps, President of the Board of Trade,
  - A.V. Alexander, First Lord of the Admiralty.

Important Points

On 22nd January 1946, the decision to send Cabinet Mission was taken and on 19th February 1946, the British PM C.R Attlee Government announced in the House of Lords about the mission and the plan to quit India.

Additional Information

Important dates to remember:
- 23 March-29 June: Cabinet mission visits India
- 16 May: constitutional scheme
- 16 June-plan for the formation of interim government)
- 16 August-‘Direct Action Day’
- 02 September: Congress forms interim government with Nehru as Vice-President
- 13 October-Muslim League decides to join the interim government
- 3-6 December: London conference of major Indian leaders aborted

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MCQ

Which is not a function of operating system?

Memory management

Virus protection

Disk management

File management

Correct Answer: B

The correct answer is Virus protection.

Functions of operating system are:

1.	Memory management
2.	Disk management
3.	File management
4.	Process management

Therefore, Virus Protection is not the function of OS. It is a function of Firewall and Antivirus.

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MCQ

Which of the following persons has hosted the first India-Central Asia Summit in a virtual format on 27 January 2022?

Defence Minister Rajnath Singh

PM Narendra Modi

Dr. S Jaishankar

Piyush Goyal

Correct Answer: B

The correct answer is PM Narendra Modi.

Key Points

Prime Minister Narendra Modi will host the first India-Central Asia Summit in a virtual format on 27 January 2022.
This will be the first engagement of its kind between India and the Central Asian countries at the level of leaders.
The virtual summit will see the participation of the five countries Kazakhstan, Uzbekistan, Tajikistan, Turkmenistan, and the Kyrgyz Republic.

Additional Information

Prime Minister Narendra Modi addressed the World Economic Forum's (WEF) Davos Agenda virtual event on 17 Jan'22.
PM Narendra Modi has been invited as the chief guest at the 54th convocation ceremony of the IIT Kanpur on 28th Dec 2021.
Amid the Omicron scare, Prime Minister Narendra Modi has announced the Covid-19 vaccine for children and booster doses for Health workers and senior citizens in December 2021.
Prime Minister Narendra Modi has laid the foundation stone of Ganga Expressway in Shahjahanpur, Uttar Pradesh in December 2021.
In October 2021, Prime Minister Narendra Modi has launched the Indian Space Association (ISA).
Prime Minister Narendra Modi has been named among the 100 most influential people of 2021 by Time Magazine.
In August 2021, Narendra Modi has become the first Indian Prime Minister to chair an open debate at United Nations Security Council (UNSC).

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MCQ

The following question has an underlined word followed by four answer choices you will choose the word that is necessary part of the underlined word.

Honey

Tree

Flower

Fruit

Seed

Correct Answer: B

Flower is necessary for the production of Honey.

Hence, ‘Flower’ is the correct answer.

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MCQ

45 people are standing in a queue. A is standing 26^th from the behind. What is the position of A from the front?

17^th

19^th

20^th

22^nd

Correct Answer: C

Total number of people = 45

Position of A from the behind = 26^th

Position of A from the front = Total number of people – A’s position from the behind + 1

= 45 – 26 + 1

= 20^th

Hence, 20^th is the correct answer.

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