18) Expansion Slots AGP, PCI, PCI Express

18) Expansion Slots AGP, PCI, PCI Express
- Ports or PCI BUS
PCI BUS. It means Interconnected Peripheral Component and it is a 32-bit communication bus that performs its functions at 33Mhz, transferring data to and from the RAM memory at 133Mbits / s, a satisfactory speed even for PCI-type 2D graphics cards. Thanks to the PCI bus, the processor can work on other more complex functions as it develops manipulations of texture and calculation of polygons for example. PCI slots vary depending on the bits to be transported, as is the case with 32-bit PCI slots and 64-bit PCI slots, which are the most recent. For the electrical requirement there are also three types of PCI cards: 5-volt PCI for desktop computers, 3.3-volt PCI for laptops and Universal that can be used for the two previous systems.

-Ports or AGP BUS
BUS AGP. It means Advanced Graphics Port and it is a system used for the connection of peripherals on the motherboard that transfers data from the microprocessor to the peripheral that is connected to the bus. The AGP BUS offers several types of operation
-Port Express ports
PCI Express BUS. The latest technology, came to replace the PCI and AGP buses, has great transfer speed. It has two speeds, the PCI Express 1X with speed of 133Mhz for devices such as audio cards and TV. And the PCI Express 16X with a speed of 2128Mhz for graphics cards.