$4$ What is the difference between PCI and PCle?

PCle uses point$-$to$-$point sertal links, and PCle can handle multiple links to exchange data on the same connector.

PCle uses point$-$to$-$point serial links, and PCl can handle multiple links to exchange data on the same connector.

$PCl$ uses point$-$to$-$po nt serlal links, and PCI can handle multiple links to exchange data on the same connector

PCI uses paint$-$to$-$po nt serlal links, and PCie can handle multiple ilnks to exchange data on the same connector.