Expansion slots are long narrow sockets in a computer into which an expansion card can be inserted. Nearly all personal computers except portables contain expansion slots for adding more memory, graphics capabilities, and support for special devices.
They are located at the back of the computer, they allow more ports to be add to the computer.
Types of expansion slots are: ISA ISA were the first standard for PCs, there are an old technology. PCI Peripheral Controller Interface these operate at either 33 or 66 MHz and 64 bits. This utilizes parallel technology. In simpler terms, it is used as an audio or video interface used to make your computer function with more worthwhile options. PCI-X This is the latest version of PCI technology operating at 66 MHZ and 64 bits. This also utilizes parallel technology. PCI Express This had fewer channels for data but it was much faster than AGP technology. It was cheaper to design and build. This type of slot was much more upgradeable/expandable. It was also serial technology. AGP This was a designated slot reserved for graphics cards. It was utilized in a motherboard that would be used in a PC that required high-end graphics processing abilities. AGP Pro Used for Mac’s that requires high re-draw capabilities. A good example would be a PC running AutoCAD. Some slots required up to 110W of dedicated power, this would be delivered using a power supply with its own MOLEX. This had fewer channels for data but it was much faster than AGP technology. It was cheaper to design and build. This type of slot was much more upgradeable/expandable. It was also serial technology.
An ExpressCard is an interface to allow peripheral devices to be connected to a computer, usually a laptop computer. ExpressCards is a hardware standard replacing PC cards or PCMCIA cards.
CardBus is the latest enhancement to the PCMCIA 5.0 or later. PMCIA stands for Asociación Internacional de Tarjetas de Memoria. CardBus was introduced in 1995 and present in laptops from late 1997 onward. The main purpose of CardBus was to extend the existing PCMCIA bus to allow more powerful devices, and also provide support for 32 Bit I/O.
PCMCIA is the short for Personal Computer Memory Card International Association. It is pronounced as separate letters. PCMCIA is also known as PC Card.
PCMCIA was originally designed for adding memory to portable computers, the PCMCIA standard has been expanded several times and is now suitable for many types of devices
The primary advantage of AGP over PCI is that it provides a dedicated pathway between the slot and the processor rather than sharing the PCI bus. In addition to a lack of contention for the bus, the point-to-point connection allows for higher clock speeds.
PCI-X is the upgraded version of PCI. It differs mainly in the fact that the PCI-X bus is 64-bits wide, and runs at higher frequencies of up to 533MHz, compared to PCI frequency that runs up to 66MHz.
AGP Pro was launched in 1998 as an AGP interface extension specification for advanced workstations. AGP Pro bus is a specification that provides a direct connection between the graphics adapter and memory.
PCI-X is the short for PCI-eXtended. It was developed in 1998.
Help us to continue answering your questions. Did you like this article? Make a reference to "https://www.cavsi.com/" or copy and paste the below link: