1. Peripheral Component Interconnect (PCI) :
PCI is a computer bus to connect the hardware devices in a computer system. PCI is designed as a parallel bus and has a single bus clock which allocates the time quantum. The speed of a PCI slot is up to 133MB/s.
2. Peripheral Component Interconnect Express (PCI-e) :
PCI-e is a replaced version of Peripheral Component Interconnect introduced in the year 2003. PCI express is a serial bus which connects graphic cards, Wifi, hard drives and other hardware devices. The speed of a PCI-e slot is up to 16 GB/s.
- Lifewire. 2021. PCI Is the Old Way to Change Your Peripherals. [online] Available at: <https://www.lifewire.com/what-is-pci-2640242> [Accessed 8 October 2021].
- Difference between PCI and PCI express. (2020, May 22). Retrieved July 20, 2021, from https://www.geeksforgeeks.org/difference-between-pci-and-pci-express/
- Difference between PCI-E and PCI-X. (2020, May 29). Retrieved July 20, 2021, from https://www.geeksforgeeks.org/difference-between-pci-e-and-pci-x/