The transmission of words, sounds, images, or data in the form of electronic or
electromagnetic signals or impulses. Transmission media include the telephone
(using wire or optical cable), radio, television, microwave, and satellite. Data
communication, the fastest growing field of telecommunication, is the process of
transmitting data in digital form by wire or radio. Digital data can be
generated directly in a 1/0 binary code by a computer or can be produced from a
voice or visual signal by a process called encoding. A data communications
network is created by interconnecting a large number of information sources so
that data can flow freely among them. The data may consist of a specific item of
information, a group of such items, or computer instructions. Examples include a
news item, a bank transaction, a mailing address, a letter, a book, a mailing
list, a bank statement, or a computer program. The devices used can be computers,
terminals (devices that transmit and receive information), and peripheral
equipment such as printers (see Computer; Office Systems). The transmission line
used can be a normal or a specially purchased telephone line called a leased, or
private, line (see Telephone). It can also take the form of a microwave or a
communications-satellite linkage, or some combination of any of these various
systems.
Hardware and Software
Each telecommunications device uses hardware, which connects a device to the
transmission line; and software, which makes it possible for a device to
transmit information through the line.
Hardware
Hardware usually consists of a transmitter and a cable interface, or, if the
telephone is used as a transmission line, a modulator/demodulator, or modem. A
transmitter prepares information for transmission by converting it from a form
that the device uses (such as a clustered or parallel arrangement of electronic
bits of information) to a form that the transmission line uses (such as, usually,
a serial arrangement of electronic bits). Most transmitters are an integral
element of the sending device. A cable interface, as the name indicates,
connects a device to a cable. It converts the transmitted signals from the form
required by the device to the form required by the cable. Most cable interfaces
are also an integral element of the sending device. A modem converts digital
signals to and from the modulated form required by the telephone line to the
demodulated form that the device itself requires. Modems transmit data through a
telephone line at various speeds, which are measured in bits per second (bps) or
as signals per second (baud). Modems can be either integral or external units.
An external unit must be connected by cable to the sending device.
A major milestone in the history of telecommunications was the invention of the electric telegraph. It was the beginning of communication via wire. The computer industry is typically thought of as new, but the essential technology of computer networks was developed when Americans were migrating westward. The Magnetic Telephone Company, as well as dozens of other high tech companies of the nineteenth century, followed the railways with miles and miles of telegraph lines. (Derfler & Freed, 2003).
In today's world, technology is constantly changing from a new paperclip to an improvement in hospital machinery. Technology lets people improve the way they live so that they can preserve their own personal energy and focus on the really important factors in life. Some people focus their energy on making new innovations to improve transportation and the health of people that may save lives and some people focus on making new designs of packaging CDS. Technology is significant in everyone's life because it rapidly changes what is in the market. But, some new innovations of technology are ridiculous because they serve no purpose in helping mankind.
that allows you to talk to and listen to. This device is called the handset. The
Cellular phones are a phenomenon that has engulfed people in the nineties. They have become a common occurrence whether you are waiting in line at the super market or in a movie theatre. One professor at Murray State University said, “Many students are carrying them, I had a student get a call in the middle of a test last semester.” Although many people have accepted the thought of carrying a telephone wherever they go, others have not taken the onslaught of cell phones quite so easily. Cell phones have become part of everyday life, and with the dramatic changes that have been made, there is no sign of their existence diminishing. Today, cellular service is available in all 306 Metropolitan Statistical Areas across the country and all of the 428 Rural Service Areas.
order to accomplish this goal, so it is fair to say if data was not
In the world today there are many cellular technologies to choose from along with companies that provide that provide services to these technologies. What makes matters worse are the many choices that we are faced with, in just choosing what mobile phone too pick. The questions are, what are these technologies, which cellular provider do I pick and how do I decide on a phone? More importantly, is there some magic combination that will give me the best service wherever I am?
Cell phone manufacturers and service providers are at the core of the cell phone industry. These corporations are integral from their research and development endeavors to interactions with the consumer and the marketing of new products. The companies that control such factors of cellular phones are very numerous, so it is difficult to address all the cell phone manufacturers and service providers. However, we have focused largely on only the most significant cellular companies namely in the U.S. marketplace, although many have global ties. Collectively, companies around the world have the same goals in mind – to create desirable cutting-edge technology and to increase consumer satisfaction with hopes of generating sales, and thus profits.
In 1998, mobile companies such as Motorola have developed high tech models with built-in FM radio and infrared connectivity. Ten years later, many phones have options for video calling, digital camera, wireless networking, responding to emails. After five more years later, Skype company has developed a new platform which allow users to make free phone calls between any two computers.
people have phones with multiple lines in order to handle the influx of phone calls. They get
Around the 1980’s mobile telephones started showing up for commercial use. They were analog style, cumbersome and expensive to purchase. In the 1990’s digital technology was born and mobile phones became readily available to everyone and less expensive than the previous ten years. By 1998 over 30% of the world population within the areas of Europe, Asia, and North America had mobile telephones.
While some consider telephony to be restricted to voice services, common usage today includes all services that have been using the telephone network in the recent past, such as modems, TTY, facsimile, application sharing, whiteboards and text messaging. This usage is particularly appropriate for IP telephony, since one of the strengths of Internet telephony
with the BT brand. As a well known business its aim is to place all UK
People in the present society have turned from the use of the old means of communication to the more advanced and technological ways of communicating. Technology has made it easier for people to communicate in a faster, efficient, and cost saving means through the introduction of the communication channels. The world has turned out to be the centre for technology with different technologies emerging daily as the people continue to develop from time to time to cope with the growing technology. The benefits of adopting the communication technology are explained in this article which shows why people do not function without technology.
Data can be organized a specific way for each business to be able to get the best use. Employees can also access the system at the same time but in different ways. For example, the customer service team can pull up documents and keep track of complaints at the same time that the marketing team is in a