What is PCI?

PCI stands for Peripheral Component Interconnect. This is a computer bus, utilized for the attachment of peripheral devices to the computer motherboard.  Through PCI, a shared data path is implemented between the central processing unit and the marginal controllers found in all computer models that range from laptops to mainframes.

PCI was first incorporated in computers in 1993 and developed by Intel Corporation. Soon it replaced the traditional ISA and VESA local bus to become the standard expansion bus used in today’s computers. The PCI device features are the play and plug devices, which load automatically when they are connected. The system firmware is tasked with the inspection of every device Peripheral Component Interconnect configuration space to distribute resources accordingly.

Every device is allowed up to six areas of memory space or port space. Additional ROM provides the devices with EFI drivers and open firmware.  When interruptions happen during the configuration of PCI, firmware allocates them to the device instead of jumpers on the card.

PCI bus connects the expansion drives and cards to the processor as well as other sub systems. The bus speed of the PCI bus on most systems is 33MHz as higher speeds will bring problems to cards and drives or other devices. The only exception is on servers where the speed rises to 64 MHz.

What is Jitter?

Specific interrupts are assigned to each device by the system software to improve their performance. When sharing an interrupt port there must be a method to tell the device if the interrupt is for itself or other specific device that shares the IO port.  For this to happen the PCI is installed with special hardware that support such a process. PCI also supports bus mastering by covering the physical size in the bus. This includes wire spacing, electrical characteristics, bus timing and protocols.

PCI has the ability to support both 32-bit and 64-bit data paths running at a clock speed of 33MHz or 66MHz. Another new feature found in the latest versions is the adaptation of PCI to be able to signal to other form factors. These qualities make it the server expansion bus of choice. Peripheral Component Interconnect Express is the expected future replacement to Peripheral Component Interconnect and Peripheral Component Interconnect derived AGP buses.

This is because despite the huge investment of energy and time in improving the speed of processors and memory little has ever been achieved with the major connection between PCI and the many devices available.


Jitter can be referred to as a dislocation or variation in the pulsation of digital transmission, which would also mean an irregularity in the pulses.


Jitter Capabilities

Jitter has the capabilities of manifesting through discrepancies in signal strength, amplitude, as well as other elements like waves.  Jitter is caused by a number of factors which include; lags in connection time, connection timeouts, congestion in data traffic and interference.

In simple terms, jitter is technically an undesirable production of interruptions and system flaws. For one to have an understanding of jitter, it is important to keep in mind that data (which includes pictures, text, audio or video) is rarely sent out as a whole.

This data is divided into packets that are manageable with footers and headers for indicating the correct arrangement in regard to the packets of data when the turn comes for the client computer to systematize them for the playback.

Whenever there is an occurrence of jitter, a number of jitter packets may get lost while on transit. This might also wipe out the assembly code for data packets located in the receiving machine.

Therefore, an occurrence of jitters causes computer processors and monitors to malfunction, loss of files, an acquiring of noise by audio files that have been downloaded, interruption of phone calls from the internet as well disconnections and time lags. Jitter is highly considered when designing all the communication links due to the undesirable consequences it is responsible for.

Precision is the key word to understanding jitter.

Any time that jitter occurs; synchronization is a problem while it is difficult for the receiving unit to perfectly assemble the data stream coming in. Jitter is capable of occurring in transit whereby the packets of data travel through the web to the computer of the client.
Digital information either travels through wireless transmission or cables or is usually hampered by different mechanical or electronic faults which may affect the transmission signal.

When downloading media files, jitters adverse impacts are usually minimized by employing ‘buffer which is the systems storage area where an arrangement of incoming packets for both digital video and audio occurs before being played back. Technology is usually used in handling jitter correction and this usually consist hardware enhancements or is software-based. The main aim of software fixes is usually the adjustment of the digital inputs or contents until the proper or complete assembling of the data.

What is FTP?

FTP is the acronym that stands for File Transfer Protocol which is a network protocol and used for the transfer of data from one computer to another through a network for instance, the internet.  FTP is a file transfer protocol and is used for the manipulation and exchange of files over a computer network TCP. TCP means Transmission Control Protocol, which is one of the Internet Protocol Suite core protocol.  Files on an FTP server can be manipulated by a FTP client when the client connects to that server.

There are several fundamentals that can be applied to FTP.


The sites that are FTP are on average used for downloading and uploading of files to a computer server that is centrally placed for the sake of a file distribution.  For one to be able to download files and subsequently upload these files to a site that is FTP there is the need for one to connect with the use of special FTP software.

There are some software programs that are both free and commercial and others that are browser-based FTP programs. The common information that one needs to be able to connect to a site that is FTP is the hostname and server address which is the network address of the machine or computer that one wishes to connect with like ftp.microsoft.com, and the second one is the username and the subsequent password.

These two are the credentials that people use so that they can access a specific file on a computer that they wish to connect to.

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