CSS 11 Quiz

What is the primary function of a power supply unit in a computer?

• Sends data to a computer

• Displays results after processing input data

• Stores data and programs

• Converts electrical energy to another form

Which type of computer is used for research and exploration purposes, such as space exploration and weather forecasting?

• Supercomputer

• Mainframe computer

• Minicomputer

• Microcomputer

What is the main function of an input device in a computer system?

• Displays results after processing input data

• Sends data to a computer

• Allows interaction and control of the computer

• Processes data using instructions from the program

Which component of a computer system is known as the 'brain' or 'heart' of the system?

• Motherboard

• Central Processing Unit (CPU)

• Random Access Memory (RAM)

• Power Supply Unit

What is the primary function of an output device in a computer system?

• Converts electrical energy to another form

• Stores data and programs

• Sends data to a computer

• Displays results after processing input data

Which type of computer is the cheapest among the four basic types?

• Microcomputer

• Supercomputer

• Mainframe computer

• Minicomputer

What is the function of a scanner as an input device in a computer system?

• Enters characters and functions into the computer system

• Inputs sound that is then stored in a digital form

• Points and selects objects on the computer monitor

• Captures a source document and converts printed data or images into electronic data format

Which component of a computer system is used to temporarily store data and serve as the computer's 'working' memory?

• Motherboard

• Central Processing Unit (CPU)

• Random Access Memory (RAM)

• Power Supply Unit

What is the function of a projector as an output device in a computer system?

• Displays results after processing input data

• Projects an image onto a large surface

• Prints texts and pictures

• Produces sound

Which type of computer is used by small businesses and firms, and is also called 'Midrange Computers'?

• Supercomputer

• Microcomputer

• Mainframe computer

• Minicomputer