The document defines the core hardware components of a modern personal computer and provides an overview of each. A typical personal computer contains: (1) a monitor, (2) a motherboard that holds crucial components, (3) a CPU that carries out computer programs, (4) RAM for data storage, (5) expansion cards that add functionality, (6) a power supply, (7) an optical disc drive, (8) a hard disk drive, (9) a keyboard for input, and (10) a mouse. Peripheral devices like printers can connect to expand capabilities but are not core components.

1. MINISTRY OF HIGHER STUDY AND SCIENTIFIC RESEARCH
AMAR THELIDJI UNIVERSITY - LAGHOUAT
ENGLISH DEPARTMENT
ICTE module
Exposé about:
Presented by:
GHAZALLE Abou baker
LEBRAGUE Mabrouk
GUENDOUZ Messaoud
GUENANE Ben azouz
CHOUIREF Ahmed

2. DEFINITION
Personal computer hardware are the
component devices that are the building
blocks of personal computers. These are
typically installed into a computer case, or
attached to it by a cable or through a port. In
the latter case, they are also referred to as
peripherals.

3. OVERVIEW
Modern personal
computer usually
have:
1. Monitor
2. Motherboard
3. CPU
4. RAM
5. Expansion
cards
6. Power supply
7. Optical disc
drive
8. Hard disk drive
9. Keyboard
10. Mouse

4. 1.
MONITOR
 A monitor or display (also called screen or visual display
unit) is an electronic visual display for computers. The monitor
comprises the display device, circuitry, and an enclosure. The
display device in modern monitors is typically a thin film
transistor liquid crystal display (TFT-LCD) thin panel, while
older monitors use a cathode ray tube about as deep as the

5. 2.
MOTHERBOARD
 In personal computers, a motherboard is the central printed
circuit board (PCB) in many modern computers and holds many
of the crucial components of the system, providing connectors
for other peripherals. The motherboard is sometimes
alternatively known as the mainboard, system board, planar
board or, on Apple computers, the logic board. It is also
sometimes casually shortened to mobo.

6. 3. CPU
 The central processing unit (CPU) is the portion of a computer system
that carries out the instructions of a computer program, to perform the
basic arithmetical, logical, and input/output operations of the system. The
CPU plays a role somewhat analogous to the brain in the computer. The
term has been in use in the computer industry at least since the early
1960s.The form, design and implementation of CPUs have changed
dramatically since the earliest examples, but their fundamental operation
remains much the same.

7. 4. RAM
 Random access memory (RAM) is a form of computer data storage.
Today, it takes the form of integrated circuits that allow stored data to be
accessed in any order with a worst case performance of constant
time.RAM is often associated with volatile types of memory (such as
DRAM memory modules), where its stored information is lost if the power
is removed.

8. 5. EXPANSION
CARDS
 The expansion card (also expansion board, adapter
card or accessory card) in computing is a printed circuit
board that can be inserted into an expansion slot of a
computer motherboard or backplane to add functionality
to a computer system via the expansion bus.

9. 6. POWER
SUPPLY
 A power supply unit (PSU) converts mains AC to low-voltage
regulated DC power for the internal components of the
computer. Modern personal computers universally use a
switched-mode power supply. Some power supplies have a
manual selector for input voltage, while others automatically
adapt to the supply voltage.

10. 7. OPTICAL DISC
DRIVE
 In computing, an optical disc drive (ODD) is a disk drive that
uses laser light or electromagnetic waves within or near the
visible light spectrum as part of the process of reading or writing
data to or from optical discs. Some drives can only read from
discs, but recent drives are commonly both readers and
recorders, also called burners or writers. Compact discs, DVDs,
and Blu-ray discs are common types of optical media which can
be read and recorded by such drives.

11. 8. HARD DISK
DRIVE
 A hard disk drive (HDD; also hard drive, hard disk, or disk
drive) is a device for storing and retrieving digital information,
primarily computer data. It consists of one or more rigid (hence
"hard") rapidly rotating discs (often referred to as platters), coated
with magnetic material and with magnetic heads arranged to write
data to the surfaces and read it from them.

12. 9.
KEYBOARD
 In computing, a keyboard is a typewriter-style keyboard,
which uses an arrangement of buttons or keys, to act as
mechanical levers or electronic switches. Following the
decline of punch cards and paper tape, interaction via
teleprinter-style keyboards became the main input device for
computers.

13. 10.
MOUSE
 A mouse is a pointing device that functions by detecting two-dimensional
motion relative to its supporting surface. Physically, a mouse consists of
an object held under one of the user's hands, with one or more buttons. It
sometimes features other elements, such as "wheels", which allow the
user to perform various system-dependent operations, or extra buttons or
features that can add more control or dimensional input.

14.  There are also some peripheral devices which can be
connected to a host computer, but it’s not a part of it, They
expand the host's capabilities, but does not form a part of the
core computer architecture.
 For example: printers, scanners, tape drives, microphones,
loudspeakers, webcams...etc.

15. THANK YOU !
FOR YOUR ATTENTION.