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Peripherals are devices that are attached to a computer system to enhance its capabilities. Peripherals include input devices, output devices, storage devices, and communications devices.
All peripherals must have some way to access the data busof the computer (the communications channel on the motherboard that connects the processor, RAM, and other components). To do this, peripherals are connected via some kind of port (also called a I/O port, for input/output) on the computer (and a cable with the proper connectors is needed).
In some cases, the controller chips and circuitry for a port may be included on the motherboard itself (especially in laptop computers). In other cases, an expansion card in one of theexpansion slots on the motherboard provides the needed port. This card is also called a controller card or aninterface card. The software needed to handle the interface through the controller card is called a device driver, a type of system software.
A video card that allows output to be sent to a monitor is an example of an interface card. The part of the video controller card that protrudes through the case of the computer includes a port (or ports) that monitor cables can connect to.
A serial port transmit data one bit at a time. Typically on older PCs, a modem, mouse, or keyboard would be connected via serial ports. Serial cables are cheaper to make than parallel cables and easier to shield from interference.
Parallel Port
The parallel port of older PCs could transmit 8 bits of data at a time, so it was faster than the old serial port (just as more traffic can move along a multi-lane highway than can move along a one-lane road). The parallel port was typically used to connect a printer to the computer. USB (Universal Serial Bus) is a newer type of serial connection that is much faster than the old serial ports. USB is also much smarter and more versatile since it allows the "daisy chaining" of up to 127 USB peripherals connected to one port.
USB ports can support the connection of many kinds of devices (keyboard, mouse, printer, audio in/out, external floppy or Zip drives, scanner, flash drive, etc.). Newer PCs and Macs include several USB ports, some often located in handy spots on the front panel of the computer case or the side of the keyboard. USB connections are hot-swappable (they can be connected and disconnected while the devices are turned on; this is not always true for older connection methods).
An updated version, called USB 2.0 has a speed of 480 Mbits/sec, which is 40 times faster than the older USB port's high-speed mode (the connectors look the same).
SCSI (Small Computer System Interface), pronounced "scuzzy," is an older high-speed interface technology. Up to six devices can be daisy-chained to a SCSI port on your computer, but, unlike the plug-and-play nature of USB and FireWire, the user must manually set the SCSI ID number of each device and add connection terminators as needed. In other words, it was a much bigger pain than the newer interfaces.
SCSI was used as the fast port on older Macintosh computers and some PC laptops. SCSI is also used as an interface bus for connecting internal hard disk drives in some machines
FireWire is a high speed interface that was developed by Apple computer. Sony uses a version called i.Link. It is often called IEEE 1394 when used on PCs (since Apple charges an extra fee for using the name "FireWire"). The first version of FireWire (FireWire 400) works at speeds of 400 Kbits/sec, and the newer FireWire 800 supports twice that speed. FireWire is hot-swappable and supports up to 63 daisy-chained peripherals per port.
Connecting your computer to a network requires a network adapter. This circuitry and port could be built into the motherboard (as is often the case in laptops and Macs), or your computer may have a network interface card (NIC) in one of its expansion slots. Your computer also needs the necessary networking software installed.
The most commonly used networking technology is Ethernet (we use it to connect together the PCs, Macs, and server computers on the UNM-LA Local Area Network). The picture at the right shows a typical Ethernet port and Ethernet cable connector. Ethernet comes in different speed ratings, such as 10 megabits/sec, 100 megabits/sec, and gigabit/sec speeds.
PCMCIA stands for (Personal Computer Memory Card International Association). It is a standard for extension cards for mobile computers. PCMCIA cards are about the size of a credit card and are typically inserted into a slot in the side of your laptop. The card may contain extra memory (which was it primary original use) or it may contain expansion peripherals such as a modem, a tiny hard disk drive, a networking adapter, etc. Type I, II, and III cards are different thicknesses.
PCMCIA cards are also called PC Cards since most people can't remember PCMCIA (the standard joke is that it stands for "People Can't Memorize Computer Industry Acronyms").
Audio Ports
The three small connectors shown at the right are for connecting sound input (from a tape player, for example), sound out (to connect your PC's sound output to your stereo system of external speakers), and a microphone input port
PS/2 ports are special ports for connecting the keyboard and mouse to some PC systems. This type of port was invented by IBM
PCI, ISA, ATA, IDE, SCSI
Your computer may have interface bus standards built in that have no external connectors. The expansion slots in a PC or Mac are typically PCI (Peripheral Component Interconnect), which displaced the older ISA standard in PCs and NuBus slots in Macs. Often you will find a special slot for a video card, such as an AGP (Accelerated Graphics Port) slot. You will also run into interface standards for adding additional hard drives or optical drives inside your computer, such as IDE, EIDE, ATA, Serial ATA, and SCSI. You don't need to remember that last bunch for this classPeripherals are devices that are attached to a computer system to enhance its capabilities. Peripherals include input devices, output devices, storage devices, and communications devices.
All peripherals must have some way to access the data busof the computer (the communications channel on the motherboard that connects the processor, RAM, and other components). To do this, peripherals are connected via some kind of port (also called a I/O port, for input/output) on the computer (and a cable with the proper connectors is needed).
In some cases, the controller chips and circuitry for a port may be included on the motherboard itself (especially in laptop computers). In other cases, an expansion card in one of theexpansion slots on the motherboard provides the needed port. This card is also called a controller card or aninterface card. The software needed to handle the interface through the controller card is called a device driver, a type of system software.
A video card that allows output to be sent to a monitor is an example of an interface card. The part of the video controller card that protrudes through the case of the computer includes a port (or ports) that monitor cables can connect to.
A serial port transmit data one bit at a time. Typically on older PCs, a modem, mouse, or keyboard would be connected via serial ports. Serial cables are cheaper to make than parallel cables and easier to shield from interference.
Parallel Port
The parallel port of older PCs could transmit 8 bits of data at a time, so it was faster than the old serial port (just as more traffic can move along a multi-lane highway than can move along a one-lane road). The parallel port was typically used to connect a printer to the computer. USB (Universal Serial Bus) is a newer type of serial connection that is much faster than the old serial ports. USB is also much smarter and more versatile since it allows the "daisy chaining" of up to 127 USB peripherals connected to one port.
USB ports can support the connection of many kinds of devices (keyboard, mouse, printer, audio in/out, external floppy or Zip drives, scanner, flash drive, etc.). Newer PCs and Macs include several USB ports, some often located in handy spots on the front panel of the computer case or the side of the keyboard. USB connections are hot-swappable (they can be connected and disconnected while the devices are turned on; this is not always true for older connection methods).
An updated version, called USB 2.0 has a speed of 480 Mbits/sec, which is 40 times faster than the older USB port's high-speed mode (the connectors look the same).
SCSI (Small Computer System Interface), pronounced "scuzzy," is an older high-speed interface technology. Up to six devices can be daisy-chained to a SCSI port on your computer, but, unlike the plug-and-play nature of USB and FireWire, the user must manually set the SCSI ID number of each device and add connection terminators as needed. In other words, it was a much bigger pain than the newer interfaces.
SCSI was used as the fast port on older Macintosh computers and some PC laptops. SCSI is also used as an interface bus for connecting internal hard disk drives in some machines
FireWire is a high speed interface that was developed by Apple computer. Sony uses a version called i.Link. It is often called IEEE 1394 when used on PCs (since Apple charges an extra fee for using the name "FireWire"). The first version of FireWire (FireWire 400) works at speeds of 400 Kbits/sec, and the newer FireWire 800 supports twice that speed. FireWire is hot-swappable and supports up to 63 daisy-chained peripherals per port.
Connecting your computer to a network requires a network adapter. This circuitry and port could be built into the motherboard (as is often the case in laptops and Macs), or your computer may have a network interface card (NIC) in one of its expansion slots. Your computer also needs the necessary networking software installed.
The most commonly used networking technology is Ethernet (we use it to connect together the PCs, Macs, and server computers on the UNM-LA Local Area Network). The picture at the right shows a typical Ethernet port and Ethernet cable connector. Ethernet comes in different speed ratings, such as 10 megabits/sec, 100 megabits/sec, and gigabit/sec speeds.
PCMCIA stands for (Personal Computer Memory Card International Association). It is a standard for extension cards for mobile computers. PCMCIA cards are about the size of a credit card and are typically inserted into a slot in the side of your laptop. The card may contain extra memory (which was it primary original use) or it may contain expansion peripherals such as a modem, a tiny hard disk drive, a networking adapter, etc. Type I, II, and III cards are different thicknesses.
PCMCIA cards are also called PC Cards since most people can't remember PCMCIA (the standard joke is that it stands for "People Can't Memorize Computer Industry Acronyms").
Audio Ports
The three small connectors shown at the right are for connecting sound input (from a tape player, for example), sound out (to connect your PC's sound output to your stereo system of external speakers), and a microphone input port
PS/2 ports are special ports for connecting the keyboard and mouse to some PC systems. This type of port was invented by IBM
PCI, ISA, ATA, IDE, SCSI
Your computer may have interface bus standards built in that have no external connectors. The expansion slots in a PC or Mac are typically PCI (Peripheral Component Interconnect), which displaced the older ISA standard in PCs and NuBus slots in Macs. Often you will find a special slot for a video card, such as an AGP (Accelerated Graphics Port) slot. You will also run into interface standards for adding additional hard drives or optical drives inside your computer, such as IDE, EIDE, ATA, Serial ATA, and SCSI. You don't need to remember that last bunch for this class
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Definition of back panel of a computer?
The definition of a back panel on a computer is the location in which peripherals can be connected and interact with the computer. It is home to ports like USB, VGA, and Ethernet.
Ports of computer and its functions?
ports of a computer and its functions
What is the definition for peripheral ports and expasion slots?
Peripheral ports such as COM, USB and serial ports, are input/output interfaces that allow devices to connect to a computer. Expansion slots are sockets on the motherboard where an expansion card is inserted.
What function does the female port do on the computer?
The port of a computer is an interface between the computer and other computers or devices. The function of ports is to connect a monitor, webcam, speakers or other device through a specialized outlet.
Why is a computer port needed?
Kind of a vague question, but computer ports are needed so different devices (such as a mouse or keyboard) can communicate with your computer, and allow you to use it.
How many ports are their?
The number of ports on a computer depends on the type of computer it is. The type of ports they have--for example USB, headphone, or HDMI--also varies greatly from computer to computer.
Do different CPU brands take different size displayports?
Various computer processing units, or CPU's are unique for their own specifications. In the event of the different size display ports, there is really no difference because these ports are typically connected to a USB.
What is a simple definition for computer virus?
A 'file' that creeps it way into your computer ( different ways ) and damages your files and computer.
How do you find the port number for a particular IP address?
Ports are like doors to a computer each computer has many ports. Without any open ports your computer wouldn't be able to access the internet, to find open ports you can try a portscan
If you have two different usb ports on your computer do you have to download 2.0 drivers for each set of ports?
No. When you update the USB Host, it updates all the 'ports'. Actually, the physical ports are just places to plug things in. The updating actually happens with the software hardcoded into the USB Root Hub, which controls all the ports.
What is the purpose of a port in data communication?
How do we know what application to send the data to? Say you have 2 Google tabs open and you search 2 different things at the same time. How does the computer not switch the information between the two tabs? Why is it always the right information? Because of ports. Ports uniquely identify different applications or processes running on a single computer allowing different applications to share a single internet connection. Your computer created 2 separate ports for the Google searches, thereby distinguishing them.
The interface through which external devices are connected to your computer is an?
The interface through which external devices are connected to your computer is commonly known as a port. Ports can come in different shapes and sizes, with various types of connectors used to attach external devices such as printers, keyboards, and mice to a computer. Some common types of ports include USB (Universal Serial Bus) ports, which are widely used to connect a range of devices to computers and other devices, as well as HDMI (High-Definition Multimedia Interface) ports, which are commonly used to connect computers and other devices to displays such as TVs and monitors. Other types of ports include Ethernet ports, which are used for networking and connecting computers to the internet, and audio ports, which are used for connecting headphones, speakers, and microphones to a computer. Overall, the use of ports is essential for connecting external devices to computers and other devices, enabling users to expand their capabilities and interact with a wider range of hardware and peripherals.
