An input device provides data and control signals to a computer system and includes keyboards, mice, joysticks, scanners, and digital cameras. A process is a running program instance that includes variables and state and modern computers support running multiple processes simultaneously. The CPU carries out instructions from computer programs and is the primary component performing the computer's functions.

3. An input device is any peripheral (piece
of computer hardware equipment) used to
provide data and control signals to an
information processing system (such as
a computer).

4. Webcam Keyboard Mouse
Joystick Scanner Digital camera

5. In computing, a process is a running instance of
a program, including all variables and other state. A
modern computer system typically supports many
processes, which are multitasked to give the appearance
that all of them can run simultaneously.

6. The Central Processing Unit (CPU)
or processor is the portion of a computer system
that carries out the instructions of a computer
program, and is the primary element carrying out
the computer's functions.

7. An output device is any piece of computer
hardware equipment used to communicate the
results of data processing carried out by
an information processing system (such as
a computer) to the outside world.

8. Speaker Monitor Printer
Scanner Fax Machine

9. A data storage device is a device for
recording (storing) information (data).

10. Magnetic storage and magnetic recording are terms
from engineering referring to the storage of data on
a magnetized medium.
Zip Disk Magnetic Tape
Floppy Disk Hard disk Drive

11. Optical Storage Device
Optical storage is a term from engineering referring to the storage of
data on an optically readable medium. Data is recorded by making
marks in a pattern that can be read back with the aid of light.
CD-R DVD-R

12. A solid-state drive (SSD) is a data storage device that uses solid-
state memory to store persistent data. An SSD emulates a hard disk
drive interface, thus easily replacing it in most applications.
USB flash Drive