Robert Black
Computer structure
NT1110
Melendez

Serial Ports VS Parallel Ports

Computers are the society it can be known as one of the greatest creations in technology. It has changed the way we will look at technology for the rest of eternity. Computers have evolved over the last few decades. Computers make life for an individual a lot less complicated. You might be attached to your computer but there are many other utilities that help operate your computer device.
Serial ports are normally identified on IBM compatible computers as COM better known as (communications) ports. For example, a mouse might be connected to COM1 and a modem to COM2 since they have multiple directions. Serial ports where developed in the early 1970s in the first computer device. They can be connected to external modems, Serial mouse or pointing devices such as trackballs or touchpads, Plotters, Label printers, Serial printers PDA docking stations, Digital cameras, PC- to- PC cofile transfer programs such as Direct Cable Connection, Lap Link, Serial ports come in two well-known forms: DB- 9M (male), DB- 25M (male) Either form can be adapted to the other connector type with a low- cost adapter. The difference is possible because serial communications need only a few wires. Meanwhile parallel printers, which use a standard cable, each type of serial device uses a specially wired cable. A serial connection needs to have a cable that connects the device to the port.
Devices other than printers that plug into the parallel known an (LPT) port have two connectors. One is used for the cable that runs from the device to the parallel port, and another can be used for the cable that runs from the device to the printer. The parallel (LPT) port is unique because it uses two completely different connect-tor types: The parallel (LPT) port is different because it uses two completely different connect-tor types: Parallel ports can be constructed as LPT1, LPT2, and LPT3. When a one-single parallel port is found in the system, regardless of its configuration, it is always labeled as LPT1. The configurations for LPT2 and LPT3 are use when used with more than one parallel port.
The parallel port is one of the oldest port designs with the first use in the early 1970s, which allows printers to be hooked directly into a mainframe and print multiple orders carried out by entering a section of code through the command station. The parallel port can also allow for a one-way transmission of data from a source to a secondary device, such as a printer. In most parallel ports they generally have a minimum of 25 pin connectors that create the actual connecting part of the device.
One key difference that is a key factor between a serial and parallel port is that the serial port allows for data to be transferred to the hard drive from a remote device, or transmitted from the hard drive to a remote device. A serial port can also be referred to as a communication port or bi-directional port. This two-way communication process makes it possible to connect many things such as work stations to much larger terminals as well. One major issue noted with parallel ports is that they suffer extremely from minor distractions known as inter-symbol interference (ISI) and noise, and as a result the data can be corrupted over long distances. Which should also be noted is that since the wires in a parallel system have minor amounts of capacitance and mutual inductance, the bandwidth of parallel wires is much lower than the bandwidth of serial wires. It is known that less noise in the channel can mean you can successfully transmit data reliably with a lower Signal-to-Noise Ratio, SNR. Parallel ports can also have one result into an increased potential for noise and interference, parallel wires need to be far shorter than serial wires. The main issues with serial ports are bandwidth and limited ports. The port which is the oldest port can also be known as the slowest out of the port family. Serial port is the slowest of the whole entire group. For an example consider if you would have a host adapter that claims to support 400 kbps, consider the fact that the serial port can only support 115 kbps. The Parallel port can produce quick enough speed for most applications, but it suffers from many difficult issues as well. The most specific issue is that the port known is unusual. This is information that is real significant for an consumer of an operating computer should have proper knowledge of .

References

References
Simonds, L. (1998). Getting more from your USB port. Family, 5(7), 36.

References
Bai, Y. (2005). The Windows Serial Port Programming Handbook. Boca Raton, Fla: Auerbach Publications References
SERIAL PORT CONNECTION CIRCUIT AND SERVER. (2013).

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