1. Find the suitable ending

123. Find the right definition of the term. A modem is __________ .
a device that converts data so that it can travel over the internet
a device used to produce voice output and play back music
a mechanism that reads and/or writes optical discs
a socket into which a peripheral device may be connected


124. Find the right definition of the term. A port is _________ .
a socket into which a peripheral device may be connected
a device that converts data so that it can travel over the internet
a device used to produce voice output and play back music
a mechanism that reads and/or writes optical discs


125. What are the main parts of a PC system?
a motherboard, CPU, a video card, RAM, SSD or HDD
a keyboard, a mouse, a monitor, CPU
a power suply, graphics processing unit, CD-ROM drive, RAM, speakers
a modem, a printer, a monitor, a mouse, CPU


126. Answer the question. What is ROM?
ROM is a non-volatile memory and stands for read only memory.
ROM is used for sending information over the Internet.
ROM is the main memory of a PC system which is physical.
ROM is a hard disk of a PC system which is the main part.


127. Answer the question. What is RAM?
RAM is the main memory of a PC system which is physical.
RAM is a non-volatile memory and stands for read only memory.
RAM is used for sending information over the Internet.
RAM is a hard disk of a PC system which is the main part.


128. Answer the question. What is the CPU?
The CPU is the heart and brain of a computer.
The CPU is an external peripheral device of a PC system.
The CPU is an additional device which a PC system can run without it.
The CPU refers to physical memory that is internal to the computer.


129. Answer the question. What are peripherals?
Peripherals are the physical units attached to the computer.
Peripherals are a set of instructions which tells a computer what to do.
Peripherals are chips which process data and coordinate the activities.
Peripherals are devices used to produce voice output and play back music.