Which of the following internal busses are used for expansion cards?
Each correct answer represents a complete solution. Choose all that apply.

A.
PCI

B.
SATA

C.
PCI Express

D.
ISA

Explanation:

The following internal busses are used for expansion cards:
PCI Express
PCI
ISA
What is PCI Express (PCIe)?
PCI Express (PCIe), also known as 3rd Generation I/O (3GIO), is a type of computer bus. It is a new
I/O bus technology that has more bandwidth than PCI and AGP slots. It uses two low-voltage
differential pairs, at 2.5Gb/s in each direction. It is designed to replace PCI and AGP expansion slots.
The bus is available in several different bus widths: x1, x2, x4, x8, x12, x16, and x32. PCIe is able to
transfer data in both directions at a time. PCIe hardware will work on operating systems that
support PCI.
What is a PCI bus?
Peripheral Component Interconnect (PCI) is a high-performance, 32-bit or 64-bit bus designed to be
used with devices that have high bandwidth requirements, such as the display subsystem.
What is an ISA bus?
Industry Standard Architecture (ISA) is an 8-bit expansion bus that provides an interface from
devices on expansion cards to the computer’s internal bus. A later version of ISA bus comes with a
16-bit expansion slot.
Answer option B is incorrect. SATA is used for hard disk drive and CD/DVD drives.
What is SATA?
The Serial ATA (SATA) computer bus is a storage-interface for connecting host bus adapters to mass
storage devices such as hard disk drives and optical drives. SATA offers several compelling
advantages over the older parallel ATA (PATA) interface, such as reduced cable-bulk and cost, faster
and more efficient data transfer, full duplex, and hot swapping. It is designed to replace the older
ATA (AT Attachment) standard (Parallel ATA). All SATA devices support hot plugging and hot
swapping. SATA supports Native Command Queuing (NCQ) for enhanced performance.
Reference: “http://en.wikipedia.org/wiki/Computer_hardware”