4. Different slot and connectorProcessor Slot
RAM Slot( DIMM- DDRRAM, SIMM- SDRAM)
ATX Power connector – 20 pins
IDE connector - 40 pins
SATA Connector - 7 pins
AGP Slot
CMOS battery
PCI Slot
CPU Fan – 4 pins
Front USB connector
PS2 for Mouse (Green Color) – 7 pins
Ps2 For Keyboard( Purple color) – 7 pins
VGA for monitor (Blue Color) - 15 pins
Parallel Port for printer( pink color) - 24 pins
Serial Port for scanner(Yellow color) - 16 pins
LAN or Ethernet Port
USB(Universal Serial Bus) port
Audio port
5. North bridge and South bridge
North Bridge connect directly RAM and VGA(Display) to Processor
South Bridge Connect device like IDE, SATA, BIOS, PCI
7. Short form and full form
CPU- Central Processing Unit
ATX- Extended advance Technology
AGP- Accelerated Graphics Port
SATA- Serial Advance Technology attachment
IDE- Integrated Device Electronics
PCI- Peripheral Component Interface
DDR- Double Data Rate
DIMM- Dual Inline Memory Module
SIMM- Single Inline Memory module
VGA- Visual Graphics Adaptor
PS2- Personal system 2
USB- Universal Serial Bus
NIC- Network Interface Card
CMOS- Complementary Metal Oxide Semiconductor