1. Processor slot:
It is used to install the microprocessor. Different processors use different sockets or slots. Based on the type, there are two main types of slots
a. Socket 7:
Is a 321-pin socket for Pentium class CPUs – Pentium MMX, K5, K6, etc.,
b. Slot 1:
Pentium ll/lll CPUs use slot 1.
2. Basic Input Output System (BIOS):
It is a small chip on the motherboard that loads the hardware settings required to load various devices like keyboard, monitor, or hard disk drives.
3. Complementary Metal Oxide Semiconductor memory (CMOS):
It stores the date, time and system setup parameters. A small Lithium-Ion battery powers the CMOS as well as BIOS.
4. SMPS Power supply connectors:
A power supply unit Switch Mode Power supply (SMPS) converts 230 Volts AC to 5 to 12 V DC Volts and provides regulated power for the functioning of the various components. The wattage of SMPS is around 150 to 500 watts.
