Explanation

• RAM and Cache are volatile memories.
• It means their data is lost when power is turned off.
• Volatile memory requires continuous power to retain data.
• RAM is used for running programs and storing temporary data.
• Cache is a high-speed memory that stores frequently used data for the CPU.

Additional information:

• ROM is non-volatile and retains data without power.

Last verified on 16-02-2026

Explanation

• An IP address is used to uniquely identify a device on a network.
• It allows devices to communicate and exchange data over a network or the Internet.
• Every device connected to a network is assigned an IP address.
• An IP address helps send data to the correct destination.

Last verified on 07-07-2026

Explanation

• The Trash folder stores emails that have been deleted from the inbox or other folders.
• Deleted emails usually remain in Trash until they are permanently deleted or automatically removed after a certain period.

Additional information:

• Unwanted or unsolicited emails are generally called Spam.

Last verified on 23-10-2026

Explanation

• HDMI stands for High-Definition Multimedia Interface.
• It transmits digital video and audio signals through a single cable.
• It is commonly used to connect computers, laptops, gaming consoles, and DVD players to televisions or monitors.
• HDMI supports high-quality video and multichannel audio, depending on the devices and cable specifications.

Last verified on 21-10-2026

Explanation

• Bitcoin uses blockchain technology to record and verify transactions on a distributed public ledger.
• A blockchain stores transactions in blocks that are linked together using cryptographic hashes.
• Transactions are validated by network participants through Bitcoin’s Proof of Work (PoW) consensus mechanism.
• Bitcoin was introduced by the pseudonymous creator Satoshi Nakamoto in 2009.

Last verified on 21-10-2026