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Ports and PC Components (download (1) Serial Port (a serial port is a…
Ports and PC Components
Video Graphics Array
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The 15-pin VGA connector was provided on many video cards, computer monitors, laptop computers, projectors, and high definition television sets.
VGA connectors and cables carry analog component RGBHV (red, green, blue, horizontal sync, vertical sync) video signals, and VESA Display Data Channel (VESA DDC) data
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Serial Port
a serial port is a serial communication interface through which information transfers in or out one bit at a time
data was transferred through serial ports to devices such as modems, terminals, and various peripherals.
Modern computers without serial ports may require serial-to-USB converters to allow compatibility with RS-232 serial devices
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Parallel Port
A parallel port is a type of interface found on computers (personal and otherwise) for connecting peripherals
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in parallel communication, as opposed to serial interfaces that send bits one at a time
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USB Port
Universal Serial Bus, is an industry standard that establishes specifications for cables, connectors.
protocols for connection, communication, and power supply between personal computers and their peripheral devices.
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Firewire Port
FireWire connections are easy to distinguish from USB because they are smaller and tapered on one end, while USB is flat and rectangular.
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Ethernet port
is a family of computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN).
The original 10BASE5 Ethernet uses coaxial cable as a shared medium, while the newer Ethernet variants use twisted pair and fiber optic links in conjunction with hubs or switches
central processing unit
(CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program
The form, design, and implementation of CPUs have changed over the course of their history, but their fundamental operation remains almost unchanged
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hard disk drive
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that uses magnetic storage to store and retrieve digital information using one or more rigid rapidly rotating disks (platters) coated with magnetic material.
The platters are paired with magnetic heads, usually arranged on a moving actuator arm, which read and write data to the platter surfaces.
Data is accessed in a random-access manner, meaning that individual blocks of data can be stored or retrieved in any order and not only sequentially
graphics card
is an expansion card which generates a feed of output images to a display (such as a computer monitor).
these are advertised as discrete or dedicated graphics cards, emphasizing the distinction between these and integrated graphics
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optical disc drive
disc drive that uses laser light or electromagnetic waves within or near the visible light spectrum as part of the process of reading or writing data to or from optical discs.
Some drives can only read from certain discs, but recent drives can both read and record, also called burners or writers.
Compact discs, DVDs, and Blu-ray discs are common types of optical media which can be read and recorded by such drives.