SSC CGL GK Questions 2026

A classical computer stores information in bits, each of which must be either zero or one at a given moment.

Entries on a blockchain are grouped into blocks, and every block carries the cryptographic hash, a short fixed length fingerprint, of the block immediately before it.

An RFID system has a tag carrying a tiny chip and an antenna, and a reader that sends out radio waves; the tag answers with its stored identity, so an object can be recognised without being seen or touched and without a line of sight, unlike a barcode that must…

The British technologist Kevin Ashton used the phrase Internet of Things in 1999 while working on radio frequency identification tags for tracking goods through a supply chain; his point was that if every object could report its own position and state, the internet would no longer depend on people typing…

A hypervisor is a piece of software, also called a virtual machine monitor, that divides one physical server into several virtual machines; it is the tool that makes cloud computing possible, not a way of deploying a cloud.

In this model the provider runs the finished application on its own servers and the user simply opens it in a browser, managing nothing but the data and a few settings; a web mailbox, an online office suite and a hosted customer records system all work this way.

Alan Turing proposed in 1950 that instead of arguing about what thinking means, we should set a practical trial: a human questioner communicates in writing with an unseen machine and an unseen person, and if the questioner cannot reliably tell which is which, the machine is said to have passed.

The American computer scientist John McCarthy used the phrase artificial intelligence in the proposal for the Dartmouth conference of 1956, the meeting generally treated as the birth of the subject as a separate field, and he is therefore called the father of artificial intelligence; he also created the programming language…

Sir Thomas Roe reached India in the second decade of the seventeenth century as the formal ambassador of James the First of England and spent about three years at Jahangir's court, seeking a firm commercial treaty for the East India Company; he obtained trading concessions but not the treaty he…

Abdur Razzaq Samarqandi came from Herat in the fifteenth century as the envoy of the Timurid ruler Shah Rukh, and his account, part of the work Matla-us-Sadain, describes the great fortifications of Vijayanagara in seven concentric walls, the crowded bazaars, the jewel market and the court ceremony, and it is…

Al-Biruni wrote this work in Arabic in the eleventh century as a careful account of Indian religion, philosophy, astronomy, mathematics, law, custom and measurement, setting out each belief as its own followers held it and comparing it with Greek and Islamic learning; he had learned Sanskrit for the purpose, and…

Fa-Hien travelled overland into India at the close of the fourth century and stayed for several years, coming chiefly to collect the texts of Buddhist monastic discipline; his account, known as the Record of the Buddhist Kingdoms, notes the charitable rest houses and hospitals, the mildness of punishments and the…

After Alexander's death his general Seleucus Nicator took the eastern part of the empire, was defeated by Chandragupta Maurya and made peace with him, and sent Megasthenes to his court as ambassador.

Bernier was a French physician who spent about twelve years in India in the middle of the seventeenth century and was attached to Prince Dara Shikoh as his physician, later serving the noble Danishmand Khan; he therefore watched the war of succession among Shah Jahan's sons from close quarters.

Marco Polo belonged to a family of merchants of the Republic of Venice, then the leading trading city of the Mediterranean, and he travelled overland to the court of Kublai Khan in China, returning by sea at the end of the thirteenth century.

Abu Rayhan al-Biruni was born in Khwarezm, a region that lies in modern Uzbekistan, and came to India in the eleventh century in the train of Mahmud of Ghazni.

Ibn Battuta, a qazi from Tangier in Morocco, reached Delhi in the 1330s, and the Sultan, impressed by his learning, appointed him qazi of the capital and later sent him as an envoy to the court of China.

Hsuan Tsang, also written Hiuen Tsang or Xuanzang, reached India in the seventh century and spent years in the empire of Harshavardhana of Kannauj, who received him with honour; he studied at the monastery of Nalanda under Shilabhadra, attended the great religious assemblies at Kannauj and at Prayag, and recorded…

The Special Olympics was founded in 1968 by Eunice Kennedy Shriver and holds its own World Games on its own calendar, separate from both the Olympics and the Paralympics.

Goalball is played by two teams of three, all of them wearing eyeshades so that every player competes on the same footing, and the ball has bells inside it so that it can be tracked by sound; the hall must therefore stay silent while play is on.