computer(10 point)

1) The northbridge typically handles communications between the CPU, RAM, AGP or PCI Express,Some northbridges also contain integrated video controllers, which are also known as a Graphics and Memory Controller Hub (GMCH).Because different processors and RAM require different signalling, a northbridge will typically work with only one or two classes of CPUs and generally only one type of RAM.
2) The Southbridge, also known as the I/O Controller Hub (ICH), is a chip that implements the "slower" capabilities of the motherboard in a northbridge/southbridge chipset computer architecture.
3) & 4) Should be PCI Connector. The Peripheral Component Interconnect, or PCI Standard (in practice almost always shortened to PCI) specifies a computer bus for attaching peripheral devices to a computer motherboard. These devices can take any one of the following forms:

An integrated circuit fitted onto the motherboard itself, called a planar device in the PCI specification.
An expansion card that fits in sockets.
The PCI bus is common in modern PCs, where it has displaced ISA and VESA Local Bus as the standard expansion bus, but it also appears in many other computer types. The bus will eventually be succeeded by PCI Express and other technologies, which have already started to appear in new computers.

5) A network card, network adapter or NIC (network interface controller) is a piece of computer hardware designed to allow computers to communicate over a computer network. It is an OSI model layer 2 item because it has a MAC address. It allows users to connect to each other using cables.

Every network card has a unique 48-bit serial number called a MAC address, which is written to ROM carried on the card. Every computer on a network must have a card with a unique MAC address. No two cards ever manufactured should share the same address. This is because the Institute of Electrical and Electronics Engineers (The IEEE) is responsible for assigning unique MAC addresses to the vendors of network interface controllers.