Slots used in Computer System

Slots used in Computer System

Slots or expansion slots are used to insert add-on-cards to motherboard, that enables additional features like improve graphics by adding an additional graphics card or improve the sound system by adding a sound card. But in earlier motherboard (passive) all components are added through slots.

1. ISA (Industry Standard Architecture)

• 8bit or 16 bit
• Black colour slots
• Used in old motherboards to add components like display card, sound card etc.

2. VESA(Video Electonic Standard Architecture)

• Brown coloured slots
• It comes only with  the ISA 16bit slot
• Used in old mother board for add display card.

 

3. AMR(Audio Modem Riser)

• Smal brown coloured slot
• Used to connect AMR modem

4. PCI slot (Peripheral Component Interconnect)

• 32bit and 64 bit
• White colour slots
• Used today for add display cards, sound cards, network cards, internal modem.

  

5. AGP(Accelerated Graphic Port)

• If we need more graphics display for an application like photoshop, we can add an AGP card
• Brown coloured slot
• It is used to connect graphics card
• Provides high resolution
• Faster than PCI cards

6. PCIe(PCI Express)

• Faster than AGP, if we need high graphics support display for  application like animation, we can use PCIe. 
• PCIe is available  only in latest motherboard.