Static GK decides the General Awareness score in SSC CGL. Of the 25 questions in Tier-I and the 25 in Tier-II Paper-I, most come from Indian Polity, History, Geography, the Economy and General Science, the areas the CGL 2026 notice lists as History, Culture, Geography, Economic Scene, General Policy and Scientific Research relating to India and its neighbouring countries. Polity questions ask about articles, parts and schedules of the Constitution, amendments, the President, Parliament, the Supreme Court and constitutional bodies. History covers the Indus Valley, the Mauryas and Guptas, the Delhi Sultanate and Mughals, and the freedom struggle from 1857 to 1947. Geography asks about rivers, soils, climate, national parks, minerals and world physical features. The Economy part asks about budget terms, the RBI, banking and basic concepts. General Science is school-level Physics, Chemistry and Biology. This page holds GK24's topic-wise GK notes for SSC CGL, written as short facts and tables so a topic can be revised in one sitting. Read a topic, then solve its previous-year questions and quiz on this site to check what you retained.
World Oceans Day is observed on
The day draws attention to the part the oceans play in the climate, in the oxygen we breathe and in the livelihoods of coastal communities, and it sits three days after World Environment Day.
Read the full explanation →National Statistics Day is observed in India on 29 June, the birth anniversary of
Prasanta Chandra Mahalanobis founded the Indian Statistical Institute, gave statistics the measure known as the Mahalanobis distance and shaped the model used in the Second Five Year Plan, and the Government of India keeps his birthday as Statistics Day.
Read the full explanation →The International Day Against Drug Abuse and Illicit Trafficking is observed on
The United Nations keeps this day to strengthen action against the production, trafficking and abuse of narcotic drugs, and the same date is also the International Day in Support of Victims of Torture.
Read the full explanation →World Blood Donor Day, observed on 14 June, marks the birth anniversary of the scientist who discovered
The day falls on the birth anniversary of Karl Landsteiner, whose discovery of the blood groups made safe transfusion possible and won him the Nobel Prize in Physiology or Medicine.
Read the full explanation →The International Day of Yoga is observed on 21 June. In which year was it observed for the first time?
India proposed the day at the United Nations in 2014 and the General Assembly adopted the resolution in December of that year, so the first observance came on 21 June 2015.
Read the full explanation →World Environment Day is observed every year on
The United Nations General Assembly designated the day after the Conference on the Human Environment held at Stockholm in 1972, and it has been observed since 1973.
Read the full explanation →World No Tobacco Day is observed on
The day closes the month and is meant to draw attention to the harm caused by tobacco in every form and to the policies that reduce its use.
Read the full explanation →World Red Cross and Red Crescent Day is observed on 8 May, the birth anniversary of
He shared the first Nobel Peace Prize, and the movement observes his birthday as its day.
Read the full explanation →National Technology Day is observed in India on 11 May because on that day in 1998 India
On 11 May 1998 India carried out nuclear tests at Pokhran in Rajasthan, and the same day brought the first test flight of the indigenous Hansa aircraft and a successful test of the Trishul missile.
Read the full explanation →International Nurses Day, observed on 12 May, marks the birth anniversary of
Her work with wounded soldiers in the Crimean War and the training school she founded afterwards turned nursing into a trained profession, and the day carries her name in every account of it.
Read the full explanation →World Press Freedom Day is observed every year on
The day is kept to remind governments of their duty towards freedom of expression and to mark the risks journalists take in their work, and it is the first of the international observances in the month.
Read the full explanation →Which memory is non-volatile and can be erased and rewritten electrically, byte by byte, without removing the chip from the circuit?
Electrically Erasable Programmable Read Only Memory is erased by applying a voltage, one byte at a time, while the chip stays soldered in place, which is why it is used for settings that must survive a power cut and yet be changed occasionally, such as the configuration data of a…
Read the full explanation →The storage capacity of a standard 3.5-inch floppy disk is
The 3.5-inch high-density floppy disk, the square plastic diskette with a metal shutter, was formatted to 1.44 MB, and that figure is still asked in computer awareness papers because it anchors the small end of the capacity ladder.
Read the full explanation →A solid state drive stores data using
An SSD is built from flash memory, itself a block-erasable form of EEPROM, which traps charge in floating-gate cells.
Read the full explanation →Which technique allows a computer to run programs larger than its physical RAM by using part of the hard disk as memory?
The operating system reserves an area of the hard disk, called the swap space or the page file, and moves pages a program is not actively using out to it.
Read the full explanation →Cache memory is placed between which two units of a computer?
Cache is a small block of static RAM that keeps the instructions and data most recently used by the processor.
Read the full explanation →What is the storage capacity of a standard single-sided, single-layer DVD?
A Digital Versatile Disc uses a shorter wavelength laser and finer pits than a compact disc, so one side with one recording layer holds about 4.7 GB; a double-layer disc of the same size holds roughly 8.5 GB.
Read the full explanation →Which of the following is an example of volatile memory?
Random Access Memory holds a bit only while it is powered, whether the cell is a flip-flop in static RAM or a leaking capacitor in dynamic RAM.
Read the full explanation →One terabyte is equal to how many gigabytes?
Every step in the ladder of storage units multiplies by 1,024, because 1,024 is 2 raised to the power 10 and memory is addressed in binary.
Read the full explanation →The contents of an EPROM chip are erased by exposing it to
An Erasable Programmable Read Only Memory chip carries a small quartz window over the silicon; ultraviolet light shone through that window releases the trapped charge from every cell at once and returns the chip to its blank state, after which it can be programmed again.
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