Sunday, July 8, 2007

Communication Technologies

Technology has been defined as the processes, tools and techniques that alter human activity. While often much attention is paid to such tools as computers, productivity software and peripheral devices, when we speak of technology, there is a need to focus on the processes that provide us with the conceptual tools with which to live our lives and to do our work more efficiently and effectively. Word of mouth, writing letters, speaking to one another, etc are the basic traditional technologies used by people for communication over a period. Technologies refer to such tools as computer hardware and software, calculators, fax machines, television and radio, VCRs and other electronic devices. Various tools and technologies are used in businesses, some of them are listed below:

Internet: The Internet is a worldwide, publicly accessible network of interconnected computer networks that transmit data by packet switching using the standard Internet Protocol (IP). It is a "network of networks" that consists of millions of smaller domestic, academic, business, and government networks, which together carry various information and services, such as electronic mail, online chat, file transfer, and the interlinked Web pages and other documents of the World Wide Web. Internet successfully accommodated the majority of previously existing public computer networks. Internet is fast becoming a basic feature of global civilization, so that what has traditionally been called "civil society" is now becoming identical with information technology society as defined by Internet use

Intranet and Extranet: An intranet is a private computer network that uses Internet protocols, network connectivity to securely share part of an organization's information or operations with its employees. Briefly, an intranet can be understood as "a private version of the Internet," or as a version of the Internet confined to an organization. Safety from intruders is assured and the hacker cannot easily access the corporate information, as there are different layers of security. Intranets differ from "Extranets" in that the former is generally restricted to employees of the organization while extranets can generally be accessed by customers, suppliers, or other approved parties.

Telephone and Cell phone: The telephone is a telecommunications device which is used to transmit and receive sound (most commonly speech). Most telephones operate through transmission of electric signals over a complex telephone network which allows almost any phone user to communicate with almost any other. The telephone handles two kinds of information: signals and voice, at different times on the same twisted pair of wires. The signaling equipment consists of a bell to alert the user of incoming calls, and a dial to enter the phone number for outgoing calls. A mobile telephone or cellular telephone (commonly, "mobile phone" or "cell phone") is a long-range, portable electronic device used for mobile communication. In addition to the standard voice function of a telephone, current mobile phones can support many additional services such as SMS for text messaging, email, packet switching for access to the Internet, and MMS for sending and receiving photos and video.


Experience: My cell phone allows me to keep in touch with my parents and friends even though I stay miles away from them. I also can use internet at remote places also without any wires. With earphones I also enjoy music and Bluetooth helps to exchange information.

Television: Television is a widely used telecommunication system for broadcasting and receiving moving pictures and sound over a distance. The television was the first consumer mass market for video displays. Today there are many television add-ons including video game consoles, VCRs, Set-top boxes for Cable, Satellite and DVB-T compliant Digital Television reception, DVD players, or Digital Video Recorders. The add-on market continues to grow as new technologies are developed. Computers, the internet, and even pocket devices such as the iPod provide other ways to consume video content. For businesses television is widely used for marketing and conveys messages to mass media.

E-Mail: Electronic mail abbreviated "e-mail" or, often, "email") is a store and forward method of composing, sending, storing, and receiving messages over electronic communication systems. Most business professionals today spend between 20% and 50% of their working time in communicating through email: reading, ordering, sorting, ‘re-contextualizing’ fragmented information and of course writing emails. And email communication is likely to increase considerably in future due to trends of globalization, distribution of organizations (customer closeness), outsourcing, the knowledge economy etc.

For example, the diagram shows a typical sequence of events that takes place when Alice composes a message using her mail and sends it to Bob.

Blogs: Blogs enable people to read ideas and statements and share the same information on a common forum. A typical blog combines text, images, and links to other blogs, web pages, and other media related to its topic that can be displayed in an attractive manner. Organizations today are making use of blocks by writing articles, making journal entries about their ventures, their employees are also contributing by sharing views and this information can be used by a variety of its constituencies. The ability for readers to leave comments in an interactive format is an important part of many blogs.
http://googleblog.blogspot.com/

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