Question
Which of the following is not a physical
change?Solution
Burning of coal is a chemical change, as it involves combustion and produces new substances. (B) Dissolving salt in water: Correct, it is a physical change. (C) Melting of ice: Correct, it is a physical change.
The Internet has been around for a few decades, but when was the Web invented?
Computer programs are also known as
A __________Â is a system designed to prevent unauthorized access to or from a private network
_______ is the execution of data in a short time period, providing near-instantaneous output
A ______ is a portable computer that encompasses a microprocessor, rechargeable battery, fold-down screen, keyboard and mouse.
When a computer stops suddenly, it is referred to as a
The number of pixels displayed on a screen is known as
__________ is a thin plate or board that contains electronic components.
 What type of the company is a Google?
The task bar is locatedÂ
