COMPUTER FUNDAMENTALS

Detailed explanation-1: -PCI Express (Peripheral Component Interconnect Express), officially abbreviated as PCIe or PCI-e, is a high-speed serial computer expansion bus standard, designed to replace the older PCI, PCI-X and AGP bus standards.

Detailed explanation-2: -Peripheral Component Interconnect Express (PCIe or PCI-E) is a serial expansion bus standard for connecting a computer to one or more peripheral devices. PCIe provides lower latency and higher data transfer rates than parallel busses such as PCI and PCI-X.

Detailed explanation-3: -PCI is a parallel interface whereas PCIe is a serial interface.

Detailed explanation-4: -The Peripheral Component Interconnect (PCI) bus is an expansion bus standard developed by Intel that became widespread around 1994. It was used to add expansion cards such as extra serial or USB ports, network interfaces, sound cards, modems, disk controllers, or video cards.