CompTIA®A+ Exam Notes : Various PC Connection Interfaces, Their Characteristics And Purpose

1. PC Hardware

1.4 Various PC connection interfaces, their characteristics and purpose

There are various PC connection interfaces. In this category USB has the largest share of the market due to its ease of use and device compatibility.

-PCIe stands for PCI Express card bus and it is an internal bus.

-IEEE 1394,USB,eSATA are used for external hard disk connections

Most commonly used Video connectors include VGA, HDMI, and DVI.

-For connecting an LCD monitor, you need a digital signal connector such as DVI or HDMI. PGA, and VGA are analog standards.

-The different versions of USB cables, like USB 2.0 and USB 3.0, are concerned with the functionality and speed of the USB cable; whereas, the type of USB cable (like USB Type A, USB Type B) essentially refers to the physical design of the plugs and ports.

-USB is used for connecting USB-compliant peripheral devices, and eSATA is used for connecting external eSATA devices such as eSATA disk drives.

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