Expansion slot

Explain expansion slots, expansion...

High-end video cards use the PCI Express x16 connection type.

Computer expansion slots

Daughterboard[ edit ] A sound card with a MIDI daughterboard attached A daughterboard for Inventec server platform that acts as a RAID controller based on LSI chipset A daughterboard, daughtercard, mezzanine board or piggyback board is an expansion card that attaches to a system directly. Even many video game consoles, such as the Sega Genesisincluded expansion buses; at least in the case of the Genesis, the expansion bus was proprietary, and in fact the cartridge slots of many cartridge based consoles not including the Atari would qualify as expansion buses, as they exposed both read and write capabilities of the system's internal bus.

Some expansion cards take up more than one slot space.

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This form are also called riser cardsor risers. Peripheral device expansion cards can be plugged in to the slots to add additional ports to the computer.

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Other computer buses were used for industrial control, instruments, and rice family craps table systems. Daughterboards often have only internal connections within a computer or other electronic devices, and usually access the motherboard directly rather than through a computer bus.

What is the most common expansion slot today?

How many expansion slots does my computer have?

Expansion cards are a way to upgrade a computer. An expansion slot allows them to remove the old video card and add a new video card without having to replace the motherboard. Several compact expansion standards were developed.

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The explain expansion slots card handles the graphical display and is central to system performance with graphic-demanding tasks like gaming, video editing and graphic design. In that case, a graphics card and an ST hard disk controller card provided graphics capability and hard drive interface respectively.

These usually fit on top of and parallel to the board, separated by spacers or standoffsand are sometimes called mezzanine cards due to being stacked like the mezzanine of a theatre. Today, riser boards are rarely used with motherboards, as there is limited need for additional expansion slots with modern motherboards.

Daughterboards are also sometimes used to expand the basic functionality of an electronic device, such as when a certain model has features added to it and is released as a new or separate model.

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In the case of expansion of on-board capability, a motherboard may provide a single serial RS port or Ethernet port. Every computer motherboard is different, and the only way to determine how many expansion slots are on your computer motherboard is to identify the manufacturer and model of the motherboard.

Network Cards

Recording Cards Recording-oriented devices like TV tuner cards and sound cards can be added to motherboards via expansion board. Industrial backplane systems had connectors mounted on the top edge of the card, opposite to the backplane pins. The first commercial microcomputer to feature expansion slots was the Micral Nin There are external versions of both types of recording cards explain expansion slots connect to USB and FireWire ports, but the expansion board versions of the devices can take advantage of the higher-speed PCI Express connection.

Wavetable cards sample-based synthesis cards are often mounted on sound cards in this manner. In a worst-case situation, a damaged on-board video card can be replaced with a new one in an expansion slot. In the picture below is an example of what expansion slots may look like on a motherboard.

For example, many graphics cards on the market as of are dual slot graphics cards, using the second slot as a place to put an active heat sink with a fan. For example, a computer gamer may upgrade their video card to get better performance in their games.


Cardbus is being supplanted by ExpressCard format. How do I find what computer motherboard I have? Today, the most commonly used expansion slot used and found on computer motherboards is the PCI Express expansion slot.

Once you've identified the model of motherboard, you can find complete information about the motherboard in its manual. When many expansion cards are added to a system, total power consumption and heat dissipation become limiting factors. Since reliable multi-pin connectors are relatively costly, some mass-market systems such as home computers had no expansion slots and instead used a card- edge connector at the edge of the main board, putting the costly matching socket into the cost of the peripheral device.

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Peripheral expansion cards generally have connectors for external cables. Applications[ edit ] The primary purpose of an expansion card is to provide or expand on features not offered by the motherboard. The PCI standard supports bus bridging: Rather than redesigning the first model completely, a daughterboard may be added to a special connector on the main board. How many expansion slots does my computer have?

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Video Cards Expansion ports are often used to add or upgrade the computer's video card. Explain expansion slots do not have expansion slots like a desktop computer. Examples of daughterboard-style expansion cards include: Tower case desktop computers embrace the expansion card concept more than any other case type. Adding additional expansion slots for older motherboards could be accomplished by using a riser boardwhich would add several ISA or PCI slots.

External expansion buses[ edit ] Laptops explain expansion slots are unable to accept most expansion cards. The first company to establish a de facto standard was the Altairdevelopedwhich later became a multi-manufacturer standard, the S bus.

Video Cards

The ports can be from a newer, faster standard or from a standard the computer doesn't already support. Proprietary bus implementations for systems such as the Apple II co-existed with multi-manufacturer standards.

A Wi-Fi network card can be added to the computer if the system is not already equipped with a Wi-Fi adapter. This used a second connector for extending the address and data bus over the XT, but was backward compatible; 8-bit cards were still usable in the AT bit slots.

Additionally, there are expansion cards that support the internal SCSI and SATA connection standards that can be used to increase the maximum number of hard drives and optical drives a computer can support.

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At that time, the technology was called the PC bus. Physical construction[ edit ] One edge of the expansion card holds the contacts the edge connector or pin header that fit into the slot. As mentioned above in the how many expansion slots does my computer haveevery motherboard is different, and the only way to determine the west wendover casino packages of expansion slots on the motherboard is through the motherboard manual or by opening the computer case and visually explain expansion slots the motherboard.

Network Hard rock casino hollywood fl new years eve Expansion slots can be used to add network cards to a computer. Additionally, expansion card Wi-Fi adapters can be swapped out with explain expansion slots, faster cards as improved Wi-Fi standards are introduced.

Types of expansion cards in a computer

Does a laptop have an expansion slot? Some cards are "low-profile" cards, meaning that they are shorter than standard cards and will fit in a lower height computer chassis. In this case, the motherboard provides basic functionality but the expansion card offers additional or enhanced ports. Additionally, video cards can be added to increase the number and types of screens that can be connected to the computer at once.


There is a "low profile PCI card" standard [6] that specifies a much smaller bracket and board area. Another feature of PLUS cards is that they are stackable.

Expansion slots can also be used to run several network cards at the same time for advanced users. Intel introduced the AGP bus in as a dedicated video acceleration solution.

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This standard, approved[ Like whom? However, some laptops do have PC Cards that can be inserted into the side of the laptop or the option for an express card to be added. Computers often outlast the usefulness of their original video card, and upgrading this one component through an expansion slot can revitalize the computer.

In this picture, there are three different types of expansion slots: