2. Mother board
A motherboard is a printed circuit board and is found
in many modern computers which holds many of the
components of the PC, such as the CPU and RAM.
3. RAM
RAM (random access memory) is the place in a
computer where the operating system, application
programs, and data in current use are kept so that they
can be quickly reached by the computer's processor.
4. Power supply
A power supply is a hardware component that supplies
power to an electrical device. It receives power from an
electrical outlet and converts the current from AC
(alternating current) to DC (direct current), which is
what the computer needs.
5. Wireless nic
A device that adds wireless connectivity to a computer
or PDA. It is attached via a USB port, PC Card,
memory card or is plugged into the PCI bus inside the
computer. There are three types of wireless adapters:
Wi-Fi, cellular and Bluetooth.
6. CPU
A central processing unit (CPU), also referred to as a
central processor unit,[1] is the hardware within a
computer system which carries out the instructions of
a computer program by performing the basic
arithmetical, logical, and input/output operations of
the system.
7. Heat sink
A heat sink is a passive component that cools a device
by dissipating heat into the surrounding air.