The Modem
First of all I would like to start with an introduction I chose this topic because I thought it would be interesting to learn about how a modem works in a computer. With modem we are able to access the Internet BBS' or Bulletin Board
Systems.
The MODEM is one of the smartest computer hardware tools ever created. modem is an abbreviation of Modulator De Modulator it is fairly simple to explain; through the telephone lines we are able to send messages between one single computer or a group of computers. The Originating computer sends a coded message to the Host computer which decodes it and there we have the power to access the
Internet, talk to other people through terminal programs and retrieve files from other computers. The first patented computer modem was made by Hayes in the early eighties and from there they rapidly developed the first modem speed was
300 baud and from there a 600 baud than 1200 and so on. The fastest modem made today is a 56k which is very fast. Not as fast as ISDN (The Wave offered through
Rogers cable) or even as advanced as Satellite modem. Most people now have 14.4 or 28.8 baud modems (Baud is "Slang" for Baud Rate Per Second) the reason for the increase in 14.4 and 28.8's is that they are cheap and fairly recent and haven't gone out of date yet. There are two types of modem external and external modems internal plugs into a 16 bit port inside your computer and external connects through either a serial (mouse)port or a parallel
(printer)port most people like the external modems because they don't take up an extra space in your computer (according to PC Computing) prices in modems range price from $100 (28.8bps) to $500(software upgradable 56k). Facsimile machines also have a form of modem in them, usually a 2400baud modem to decode the message. So imagine a world without the modem for a second; NO fax NO Internet
NO direct computer communications whatsoever.
The three major modem manufactures are Hayes (original modem) US Robotics and
Microsoft.
In conclusion life today it would be very hard to live without modems some businesses would cease to exist due to ill communications between offices and without modems we wouldn't have videoconfrencing e-mail and other tools we have
Modems are utilized to transmit digital data by means of simple analog system. "Modem" is gotten from the expression "modulator-demodulator." The fundamental elements of a modem are to modulate an analog carrier signal to convey digital data; and to demodulate a comparable signal to decode the digital data from the analog carrier signal.
...rly in the 90s. Eventually, it increased its speed and added more functionality like General Packet Radio System (GPRS) to the system which enhanced it to 2.5G status. 2.5G has data rates up to about 144kbit/s. It typically uses a variation of Time Division Multiple Access (TDMA).
These tools are modems and fixed wireless terminals that improve the connectivity of the mobile phones.
The phone system at AMS is what I would consider as your average phone and paging system. All of the phones have their own extension that can either be dialed as an extension or used as the last four numbers of the phone number. Within the network only the extension needs to be dialed with no previous number keying. I find this pretty handy when needing to contact other individuals within the company. Also, the equipment we test has multiple types of modems. Some of the baud rates we run them at are ranging everywhere from 8400 to 33600.
Motorola has been the leading provider of two-way radio services to public safety, government, and utility enterprises for years. They also offer broadband services. Their broadband technology includes entertainment, communications, and information systems for the home and for the office. It also allows network operators and retailers to deliver products and services that connect customers to what they want. Motorola products also include telematics that enable automated roadside assistance and navigation.
Milian, M, 2013, Top 10: Where to Find the World's Fastest Internet, accessed 1 April 2014, .
...This device allow data rate up to 100Mbps. It also Enclosure rating of IP67 for outdoor conditions.
Modem Sharing Device: Our intelligent Modem Sharing Devices save you money on your telephone bills by eliminating or more effectively using your phone lines. Each of these Modem Sharing Devices is designed to the highest quality standards because we know that your phone system has to always work. Each Modem Sharing Device is for a slightly different application but they are all designed to save you money. These products are much more than Modem Sharing Devices. They are money saving telecommunication products.
Bandwidth: It is one of the big problems in lower bandwidth uses countries (e.g. de-vel...
...gle glasses have high speed connection because it is using 4G(3G in an area which does not support 4G).
3G technology is considered the “third generation” in mobile technology and has provided services to cell phone users for over 10 years. 3G ushered in the smartphone era enabling users to check e-mail, text, call and take advantage of streaming data on their devices. “The transfer rate for 3G networks is between 128 and 144 kbps (kilobits per second) for devices that are moving fast and 384 kbps for slow ones (like for pedestrians). For fixed wireless LANs, the speed goes beyond 2 Mbps.” 1
Digital subscriber line (DSL) technology transforms an ordinary telephone line into a broadband communications link, much like adding express lanes to an existing highway. DSL increases data transmission rates by a factor of twenty or more by sending signals in previously unused high frequencies. DSL technology has added a new twist to the utility of twisted-pair telephone lines.
Over time the different means of receiving the internet have changed several years ago, a phone line would proved a slow connection to the internet, but would not be useful when storing and...
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.
UK Yahoo.com (2009) Is a NTU a modem....why is it connected to the Cisco Router? what is it function? http://uk.answers.yahoo.com/question/index?qid=20091118020312AAjeaKk