Explanation

• An Operating System (OS) is System software.
• It manages hardware resources and provides a platform for running application software.

Functions of an Operating System:

• Allocates resources
• Monitors activities
• Manages disks and files

Explanation

• .ppt (for older versions of PowerPoint).
• .pptx (for newer versions of PowerPoint, starting from PowerPoint 2007).

Explanation

• Surah Al-Naml is the 27th chapter of the Quran with 93 verses.
• It contains Bismillah in the 30th verse, making it the surah with two Bismillahs.
• Surah Al-Naml is an early Meccan surah.
• In contrast, Surah Al-Toba starts without Bismillah.
• Bismillahir Rahmanir Raheem is repeated 114 times in the Quran.

Explanation

• Iskander Mirza took charge as President on 23 March 1956.
• He was the first President of Pakistan.
• He belonged to the Republican Party.
• He was the last Governor-General of Pakistan.
• He abrogated the 1956 constitution.
• Iskander Mirza, who also served as Governor-General and Prime Minister of Pakistan, died in exile.
• He was born on November 13, 1899 in Murshidabad, India.
• He was died on November 13, 1969, in London, UK, buried in Iran.
• He was the great-grandson of Mir Jafar, the military general who betrayed Nawab Siraj ud Daula in the Battle of Plassey in 1757.

Additional information:

• Who was the first President of the Constituent Assembly of Pakistan? Quaid-e-Azam
• Who was the first President of Pakistan? Iskander Mirza
• Who was the first elected President of Pakistan? Ayub Khan

Explanation

• First Caliph: Hazrat Abu Bakr (June 8, 632 – August 23, 634)
• Second Caliph: Hazrat Umar (R.A.)
• Third Caliph: Hazrat Usman (R.A.)
• Fourth Caliph: Hazrat Ali (R.A.) (656–661 CE)

Sahabi who proposed Hazrat Abu Bakr for the Caliphate: Hazrat Umar (R.A.)

Explanation

'Where is Rabia? She has gone to bed'.

رابعہ کہاں ہے؟ وہ بستر پر چلی گئی ہے۔

This indicates that Rabia has already gone to bed.

Explanation

• An atom is the smallest particle of an element that retains the properties of that element.
• It is the smallest unit of a chemical element, and it cannot be broken down into smaller particles.

Explanation

An electric circuit is a closed path through which electric current flows.

It enabling the transfer of electrical energy.

Electric current is measured in amperes using an ammeter.

Explanation

• The pumping of blood is an involuntary action, meaning it occurs automatically without conscious control.
• The heart pumps blood throughout the body without us having to think about it.

Involuntary actions are those that occur without conscious control, such as:

• Heartbeat
• Breathing (although we can control it voluntarily to some extent)
• Digestion
• Reflexes

Voluntary actions are those that require conscious control, such as:

• Walking
• Talking
• Writing
• Solving math problems

Explanation

When meteors enter Earth’s atmosphere, they burn with light due to friction produced by rapid motion.

The high-speed entry causes the meteor to compress the air in front of it, creating intense heat and resulting in a visible streak of light.