Computer Hardware

A pointing device that sends control signals into the computer. 

• Mouse
• Keyboard
• Video Card
• Flash Drive

It is used to display data in visual form. The images it displays are where the user gets information

• Visual graphics array
• HDMI
• Monitor
• LED

It contains set of keys that are used to input characters (letters, numbers) and control signals into the computer. 

• Mouse
• Mouse Pad
• Num Pad
• Keyboard

Which is true about AVR's?

• It protects the computer from changes in the electricity.
• It is used as a back up source in case of power interruption
• It produces alternating current to supply the computer.
• It uses potentiometer.

Which is true about casing?

• It has built - in processor
• It serves as the container of the computer's internal parts.
• It has 20 drive bays.
• It carries the computer's external parts

Which is true about power supply?

• A single PSU can supply 5 computer units
• It converts the main alternating current into low-voltage direct current.
• It has its own processor
• PSU's are all true rated

Which of the following is true about a hard drive?

• PATA and SATA has the same disk rpm.
• It can only be used internally
• It cannot be partitioned
• It is the main storage device of the computer.

It reads or writes data into optical discs.

• External hard drive
• Optical disc drive
• Flash drive
• External DVD - R

It is the temporary storage device of the computer. 

• Central Processing Unit (CPU)
• Random Access Memory (RAM)
• Read Only Memory (ROM)
• Basic Input and Output System (BIOS)

• It is referred to as the computer's brain
• It is the core of the computer
• It is the body of the computer
• it is the