Which of the following is a circuit board that is used to extend slots for expansion cards and provides the ability to connect additional expansion cards to the computer?

Question

Options

• ACommunication and Networking Riser (CNR)
• BAudio/modem riser
• CRiser card
• DSecure Digital (SD) card

• A
  2% (1)
• B
  11% (5)
• C
  81% (38)
• D
  6% (3)

Explanation

Riser card is a circuit board that is used to extend slots for expansion cards and provides the ability to connect additional expansion cards to the computer. These cards are used with LPX motherboards. With the introduction of ATX motherboards, riser cards are rarely used. In ATX motherboards, the expansion cards connect directly to the computer motherboard instead of using riser cards. Answer option B is incorrect. The audio/modem riser (AMR), also known as an AMR slot, is an expansion slot. It is found on the motherboards of some Pentium III, Pentium 4, and Athlon personal computers. It was designed by Intel to interface with chipsets and provide analog functionality, such as sound cards and modems, on an expansion card. It has two rows of 23 pins each, making a total of 46 pins. Answer option A is incorrect. Communication and Networking Riser (CNR) is a hardware device developed by Intel. It plugs into the motherboard and holds chips for the functioning of devices such as modems and audio devices. It supports V.90 analog modem, multi-channel audio, phone- line-based networking, and 10/100 Ethernet-based networking. CNR also minimizes electrical noise interference through the physical separation of noise-sensitive elements from the motherboard's communication systems. Answer option D is incorrect. Secure Digital (SD) card is a non-volatile memory card format used in portable devices such as mobile phones, digital cameras, and handheld computers. SD cards are based on the older MultiMediaCard (MMC) format, but they are a little thicker than MMC cards. Generally an SD card offers a write-protect switch on its side. SD cards generally measure 32 mm x 24 mm x 2.1 mm, but they can be as thin as 1.4 mm. The devices that have SD card slots can use the thinner MMC cards, but the standard SD cards will not fit into the thinner MMC slots. Some SD cards are also available with a USB connector. SD card readers allow SD cards to be accessed via many connectivity ports such as USB, FireWire, and the common parallel port.

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