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In today's society communication technology plays a big factor in personal life as well as in the public arena.

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Introduction

In today's society communication technology plays a big factor in personal life as well as in the public arena. Nowadays it is so easy to keep in touch with our friends and family all around the world with the technology of today. It has basically improved over the last ten years. Every household now has a major communication system. Many new form of communication technologies are also used in the public for business. Some of these include the mobile phone, internet, intercom, walkie-talkies, scanners, radio, television, video conferencing, computers, cash registers, fax-machines, e-mail, computers, mp3 players, i-pods, cameras, etc. In this essay I would be going into further details into each of the communication system and I would be talking about the following in-depth; mobile phones, e-mail, computers, and fax-machines. MOBILE PHONES A mobile phone, also known as a cell phone, cellular, cell, mobile, hand phone or even simply a phone, is an electronic telecommunications device with the same basic capability as a conventional fixed line telephone, but which is also entirely portable and is not required to be connected with a wire to the telephone network. Most current mobile phones connect instead to the network using a wireless radio wave transmission technology. The mobile phone communicates via a network of base stations which are in turn linked to the conventional telephone network. ...read more.

Middle

Impact on public life * It can be used for business. * Memo's can be sent to all member of an organisation via e-mail. * Customers can give feedback on product via e-mail. * Documents can be sent via e-mail. * C.V.'s can be received. Advantages > It is easy to manage your correspondence. > It is fast as it saves on the time it take to send letters. > It is inexpensive-compared to making calls, sending fax or even sending documents by post. Most e-mail service provider give free e-mail and storage. > It is easy to filter-the subject on an e-mail makes it easier to prioritise your mails. > It is private-e-mail can only be assessed by the person it was meant for. > It is reliable-if the e-mail address isn't correct you would be notified immediately. E-mails unlike post rarely go astray. Disadvantages > You can get junk mail. > Other people can sometimes have access to your private correspondence if they know your password. > It can't be used without a computer. > E-mails can't be used in a power cut. > E-mails can't be used without an internet connection. COMPUTER A computer consists of hardware and software. Hardware is the components such as the keyboard, screen/VDU (visual display unit), mouse and all the electronic circuitry inside the computer, disk, chips, etc. ...read more.

Conclusion

* It can be used for transmitting hand written notes. * It can be used for sending resumes. * It can be used for transmitting illustrations. Advantages > Does not require manual intervention No special software/telephone line required It's 100% reliable (assuming the send enters the extension number). > Does not require sender to replace fax machine with newer model (Novell intends to sell add-on devices for roughly $50 which will add NEST routing to existing fax machines). > Does not require any special modem or hardware on receiving end > Does not require support for anything beyond the basic T.30 protocol (the NEST routing information is carried in the TSI frame) Disadvantages > Requires that sender either have a new fax machine with support for NEST addressing or have a NEST addressing device added to their fax machine. > Requires that sender knows how to use NEST addressing. Widespread acceptance of Novell's scheme is in doubt since it has not been adopted by any official standards body (as has T.30 sub addressing). > It requires a special phone line from Telephone Company that is more expensive that a standard (POTS) phone line. > DID line cannot be used to outgoing faxes (requires an additional standard phone line, although a single modem can be shared between the DID and POTS line for both incoming and outgoing faxes). > Requires special hardware and modem to intercept DID signalling information. ...read more.

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