Which of the following was used in first generation

An E-mail address is composed of :

Which rule is for Distribution Independence

What is the full form of GPU?

Portrait and Landscape are: 

Which type of computer chips are said to be volatile? 

What is the technical term for the devices connected in a network? 

What happens when you press the "Insert" key on the keyboard?

Which  is not an example for simplex?

Which of the following is a computer-based application for exchanging messages between users?

Which of the following stores data in non-volatile memory?