Questions

Here Joystick, Mouse and Scanner are Input devices through which data is given to the computers. But Headphones are output devices through which sound comes as an output from the computer or any devices.

Answer A is incorrect because you are providing a service that the customer did not request; therefore, it might not be important to her and unnecessary. Answer B is incorrect because scope creep is generally an expansion of the scope of the project at the customer's request and the customer did not request these reports. Answer C is incorrect because an additional report does not always mean increased diligence with a project.

The Micro Processor enters into Halt-State and the buses are tri-stated. 

Steel is not a compound or element. Steel is an alloy of iron and carbon and other elements and hence it is a mixture. Because of its high tensile strength and low cost, it is a major component used in buildings, infrastructure, tools, ships, automobiles, machines, appliances, and weapons.