Technology | MCQs

Explanation

The main electronic component used in first-generation counterparts was Vacuum Tubes and Valves

Leo is called the first-generation computer

First-generation (1940 - 1956)  vacuum tubes as a major piece of technology. 

The ENIAC is an example of 1st generation computer.

The time span of first-generation electronic computers was 1943 to 1959

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Second generation (1956 - 1963) use of transistors.

Third generation (1964 - 1971)  use of Integrated circuits.

Fourth generation (1972 - 2010) use of the microprocessor

The fifth generation (2010 to present) use Artificial intelligence

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ND7-5-2023

Explanation

The world’s first-generation contrail-free aircraft engine, currently being built in Pakistan for the global aviation industry, the technological marvel’s inventor,

Dr. Sarah Qureshi has been working on the project since 2018 to eliminate the negative impact of commercial air carriers on the stratosphere that contributes to global warming.

Explanation

Very-large-scale integration is the process of creating an integrated circuit by combining millions or billions of MOS transistors onto a single chip.

VLSI began in 1970

ND22-7-2023

Explanation

Turing's most notable work today is as a computer scientist.

In 1936, he developed the idea for the Universal Turing Machine, the basis for the first computer.

He developed a test for artificial intelligence in 1950, which is still used today.

Explanation

CCTV stands for closed-circuit television

It's a technology that uses video cameras to transmit signals to a limited number of monitors, rather than broadcasting to the public.

CCTV is also known as video surveillance.

Explanation

Explanation

Modern computers are significantly faster due to advancements in processing power, memory, and overall efficiency. 

Explanation

Frontier Supercomputer of USA beat Japan`s Fugaku to become the world's fastest supercomputer in May 2022.

United States is the leader with 150 supercomputers

 China, with 134 supercomputers, 

Germany, with 36 supercomputers.

These are the only supercomputers used by Pakistan.

SH12-8-2023

Explanation

Explanation

• The purest source of natural water is Rainwater. The rainwater at once comes from the condensation of water within the presence of the solar. The water evaporates from the lakes, rivers and seas. all the impurities are eliminated in the course of the vaporization procedure, and then waterfalls immediately into the earth inside the form of rain.
• In chemistry, pure water refers to an natural water solution that is freed from any dissolved salts or gases. easy consuming water, then again, includes lines of minerals like salt and magnesium, as well as carbonates and dissolved gases like oxygen, as required by way of the WHO.
• Rainwater is the purest herbal source of water. within the case of the sun, rainwater is immediately derived from vapour condensation. Ponds, lakes, and rivers evaporate their water. All pollutants are removed during the vaporization step, and water in the shape of rain falls immediately into the soil.
• As a end result, rain is considered the purest type of water.