Revision Grade7

------------------------is the computer’s memory which contains all the instructions related to hardware functioning.

• ROM

• RAM

• Hard disk

-------------------------is the physical part of the computer. It is that component of a computer that you can touch.

• Software

• Hardware

• Hard disk

send data to the system unit

• Output devices

• Hardware

• Input devices

They are the first of the kind of printers that print in color.

• Dot matrix printers

• Laser Printers

• Ink Jet printers

An advantages of using laser printers is:

Incurs low cost.

• TRUE

• FALSE

Virus problem is program to prevent, detect and remove harmful programs.

• TRUE

• FALSE

The system unit receives data from the input devices and sends the data to the output devices after some processing.

• TRUE

• FALSE

The example of output device is keyboard.

• TRUE

• FALSE

What are the two components of the computer?