Explanation

Magnetic memory (like hard drives and magnetic tapes) is read-write, not read-only — data can be both read and modified.

It is also non-volatile, reliable, and relatively cheap for storing large amounts of data.

Explanation

A low Signal-to-Noise Ratio (SNR) means that noise is stronger than the signal, leading to poor clarity and potential distortion in communication.

A higher SNR indicates a stronger signal relative to noise, resulting in clearer communication.

Explanation

A microphone captures sound waves and converts them into audio signals.

It is the primary device used for voice recording on computers and other digital systems.

Explanation

Plug and Play (PNP) allows the OS to automatically detect and configure hardware devices.

It reduces the need for manually installing a device driver, simplifying hardware setup.

Explanation

A Linker is a computer program that combines object codes (from various source files) into a single executable program.

It resolves references between modules and links library files if needed.

Explanation

A protocol is a set of rules that governs how data is transmitted and received over a network.

It ensuring that communication between devices is orderly and understandable.

Explanation

• Email was first introduced by Ray Tomlinson.
  • Email is a digital message sent from an author to one or more recipients.
  • Ray Tomlinson sent the first e-mail message as QWERTYUIOP in 1971.
  • Unwanted emails received in a folder is called Spam.
  • Gmail is a famous email service provided by Google.
  • The latest email systems technologies are based on a store-and-forward model.
• Charles Babbage is considered the "father of the computer".
• Antonio Meucci developed a voice-communication apparatus that several sources credit as the first telephone.

Explanation

The Cascade Delete option is a database feature that automatically deletes all related records in a child table when a record is deleted from a parent table.

This helps maintain data consistency and integrity by ensuring that all related data is removed when a primary record is deleted.

Explanation

The Karnaugh map (K-map) method was introduced by Maurice Karnaugh in 1953.

It is used for simplifying Boolean algebra expressions visually.

Explanation

Cyberbullying involves using digital platforms to threaten, harass, or humiliate someone.

It includes actions like sending harmful messages, spreading rumors, or sharing private information online.