Friday, November 27, 2015

Internet terms and Condition

Anti-Virus Program - An antivirus program is a software utility designed to protect your computer or network against computer viruses. If and when a virus is detected, the computer displays a warning asking what action should be done, often giving the options to remove, ignore, or move the file to the vault.

Applet - a very small application, especially a utility program performing one or a few simple functions.

Archive -a collection of historical documents or records providing information about a place, institution, or group of people.

ASCII - is the most common format for text files in computers and on the Internet. In an ASCII file, each alphabetic, numeric, or special character is represented with a 7-bit binary number (a string of seven 0s or 1s). 128 possible characters are defined.
Bandwidth -the range of frequencies within a given band, in particular that used for transmitting a signal.

Baud rate - Baud rate by definition means the number of times a signal in a communications channel changes state.

BBS - A bulletin board system (BBS) is a computer or an application dedicated to the sharing or exchange of messages or other files on a network. Originally an electronic version of the type of bulletin board found on the wall in many kitchens and work places, the BBS was used to post simple messages between users.

Binary - relating to, using, or expressed in a system of numerical notation that has 2 rather than 10 as a base.

Bitmap - a representation in which each item corresponds to one or more bits of information, especially the information used to control the display of a computer screen.

Blog or Blogging - a regularly updated website or web page, typically one run by an individual or small group, that is written in an informal or conversational style.

Bookmark - record the address of (a website, file, etc.) to enable quick access in future.

Bounce

Bug - a bug is a coding error in a computer program. (Here we consider a program to also include the microcode that is manufactured into a microprocessor.) The process of finding bugs before program users do is called debugging.
Byte - a byte considered as a unit of memory size.

CGI -  is the application of computer graphics to create or contribute to images in art, printed media, video games, films, television programs, commercials, videos, and simulators.

Chain Letter - one of a sequence of letters, each recipient in the sequence being requested to send copies to a specific number of other people.

Chat - talk in a friendly and informal way. An informal conversation.

Chat room - an area on the Internet or other computer network where users can communicate, typically limiting communication to a particular topic.

Client - a desktop computer or workstation that is capable of obtaining information and applications from a server.

Counter - A web counter or hit counter is a computer software program that indicates the number of visitors, or hits, a particular webpage has received. Once set up, these counters will be incremented by one every time the web page is accessed in a web browser.

Cyberspace - the notional environment in which communication over computer networks occurs.

Database - a structured set of data held in a computer, especially one that is accessible in various ways.

Dedicated Line - a dedicated line is a communications cable or other facility dedicated to a specific application, in contrast with a shared resource such as the telephone network or the Internet.

Dial-up - used remotely via a telephone line.

Domain name - the part of a network address that identifies it as belonging to a particular domain.

Download - copy (data) from one computer system to another, typically over the Internet.

Electronic Mall –

Ethernet - a system for connecting a number of computer systems to form a local area network, with protocols to control the passing of information and to avoid simultaneous transmission by two or more systems.

FAQ - a list of questions and answers relating to a particular subject, especially one giving basic information for users of a website.

Firewall - a part of a computer system or network that is designed to block unauthorized access while permitting outward communication.

Frame - a basic structure that underlies or supports a system, concept, or text.

Freeware - software that is available free of charge.

FTP - is a standard network protocol used to transfer computer files from one host to another host over a TCP-based network, such as the Internet. FTP is built on a client-server architecture and uses separate control and data connections between the client and the server.

GIF - a lossless format for image files that supports both animated and static images.

Gigabyte - a unit of information equal to one billion (109) or, strictly, 230 bytes.

Hacker - a person who uses computers to gain unauthorized access to data.

Header - a shot or pass made with the head. A headlong fall or dive.

HTS –

HOMEPAGE - the introductory page of a website, typically serving as a table of contents for the site. A web page set as the default or start-up page on a browser.

HOST - store (a website or other data) on a server or other computer so that it can be accessed over the Internet.

HTML - Hypertext Markup Language, a standardized system for tagging text files to achieve font, color, graphic, and hyperlink effects on World Wide Web pages.

HTTP -  is an application protocol for distributed, collaborative, hypermedia information systems. HTTP is the foundation of data communication for the World Wide Web. Hypertext is structured text that uses logical links (hyperlinks) between nodes containing text.

Hyperlink - a link from a hypertext file or document to another location or file, typically activated by clicking on a highlighted word or image on the screen.


Hypertext - a software system that links topics on the screen to related information and graphics, which are typically accessed by a point-and-click method.

Friday, November 20, 2015

Browser

A Browser is a program with a graphical user interface for displaying HTML files, used to navigate the World Wide Web.

A browser is an application program that provides a way to look at and interact with all the information on the World Wide Web. The word "browser" seems to have originated prior to the Web as a generic term for user interfaces that let you browse (navigate through and read)text files online.

Technically, a Web browser is a client program that uses HTTP (Hypertext Transfer Protocol) to make requests of Web servers throughout the Internet on behalf of the browser user. Most browsers support e-mail and the File Transfer Protocol (FTP) but a Web browser is not required for those Internet protocols and more specialized client programs are more popular.
The first Web browser, called World Wide Web, was created in 1990. That browser's name was changed to Nexus to avoid confusion with the developing information space known as the World Wide Web. The first Web browser with a graphical user interface (GUI) was Mosaic, which appeared in 1993. Many of the user interface features in Mosaic went into Netscape Navigator. Microsoft followed with its Internet Explorer (IE).

Network backbone

backbone network or network backbone is a part of computer network infrastructure that interconnects various pieces of network, providing a path for the exchange of information between different LANs or subnetworks.

backbone network or network backbone is a part of computer network infrastructure that interconnects various pieces of network, providing a path for the exchange of information between different LANs or subnetworks. A backbone can tie together diverse networks in the same building, in different buildings in a campus environment, or over wide areas. Normally, the backbone's capacity is greater than the networks connected to it.

A large corporation that has many locations may have a backbone network that ties all of the locations together, for example, if a server cluster needs to be accessed by different departments of a company that are located at different geographical locations. The pieces of the network connections (for example: ethernet, wireless) that bring these departments together is often mentioned as network backbone.

A distributed backbone is a backbone network that consists of a number of connectivity devices connected to a series of central connectivity devices, such as hubs, switches, or routers, in a hierarchy.his kind of topology allows for simple expansion and limited capital outlay for growth, because more layers of devices can be added to existing layers. In a distributed backbone network, all of the devices that access the backbone share the transmission media, as every device connected to this network is sent all transmissions placed on that network.

Internetwork

is the practice of connecting a computer network with other networks through the use of gateways that provide a common method of routing information packets between the networks. The resulting system of interconnected networks is called an internetwork, or simply an internet.

two or more computer networks connected by routers, bridges, etc.


Networked Network

A system of computers that are joined together so that they can communicate by exchanging information and sharing resources.


NSFNET

NSFNET is a wide-area network started by the National Science Foundation (NSF) that went online in 1986 and during the late 1980's and early 1990's was a crucial backbone to ARPANET and the Internet.

NSFNET was a network for research computing deployed in the mid-1980s that in time also became the first backbone infrastructure for the commercial public Internet. Created as a result of a 1985 National Science Foundation (NSF) initiative, NSFNET established a high-speed connection among the five NSF supercomputer centers and the National Center for Atmospheric Research, and provided external access for scientists, researchers, and engineers who were not located near the computing centers.

Arpanet

The Advanced Research Projects Agency Network (ARPANET) was an early packet switching network and the first network to implement the protocol suite TCP/IP. Both technologies became the technical foundation of the Internet.

today the dominant basis for data communications worldwide—was a new concept at the time of the conception of the ARPANET. Prior to the advent of packet switching, both voice and data communications had been based on the idea of circuit switching, as in the traditional telephone circuit, wherein each telephone call is allocated a dedicated, end to end, electronic connection between the two communicating stations. Such stations might be telephones or computers. The (temporarily) dedicated line is typically composed of many intermediary lines which are assembled into a chain that stretches all the way from the originating station to the destination station. With packet switching, a data system could use a single communication link to communicate with more than one machine by collecting data into datagrams and transmitting these as packets onto the attached network link, as soon as the link becomes idle. Thus, not only can the link be shared, much as a single post box can be used to post letters to different destinations, but each packet can be routed independently of other packets.

Internet

The Internet has revolutionized the computer and communications world like nothing before. The invention of the telegraph, telephone, radio, and computer set the stage for this unprecedented integration of capabilities. The Internet is at once a world-wide broadcasting capability, a mechanism for information dissemination, and a medium for collaboration and interaction between individuals and their computers without regard for geographic location. The Internet represents one of the most successful examples of the benefits of sustained investment and commitment to research and development of information infrastructure. Beginning with the early research in packet switching, the government, industry and academia have been partners in evolving and deploying this exciting new technology. Today, terms like "bleiner@computer.org" and "http://www.acm.org" trip lightly off the tongue of the random person on the street. 
This is intended to be a brief, necessarily cursory and incomplete history. Much material currently exists about the Internet, covering history, technology, and usage. A trip to almost any bookstore will find shelves of material written about the Internet. 
In this paper, several of us involved in the development and evolution of the Internet share our views of its origins and history. This history revolves around four distinct aspects. There is the technological evolution that began with early research on packet switching and the ARPANET (and related technologies), and where current research continues to expand the horizons of the infrastructure along several dimensions, such as scale, performance, and higher-level functionality. There is the operations and management aspect of a global and complex operational infrastructure. There is the social aspect, which resulted in a broad community of Internauts working together to create and evolve the technology. And there is the commercialization aspect, resulting in an extremely effective transition of research results into a broadly deployed and available information infrastructure.
The Internet today is a widespread information infrastructure, the initial prototype of what is often called the National (or Global or Galactic) Information Infrastructure. Its history is complex and involves many aspects - technological, organizational, and community. And its influence reaches not only to the technical fields of computer communications but throughout society as we move toward increasing use of online tools to accomplish electronic commerce, information acquisition, and community operations.

Thursday, November 12, 2015

Advantages and Disadvantages of e-commerce

Advantages

E-Commerce Advantages for Customers

  • Convenience. Every product is at the tip of your fingers on the internet, literally. Type in the product you are looking for into your favorite search engine and every option will appear in a well organized list in a matter of seconds.
  • Time saving. With e-commerce there is no driving in circles while looking and digging in hopes of finding what you need. Stores online offer their full line as well as use warehouses instead of store fronts—products are easy to locate and can be delivered to your door in just days.
  • Options, options, options! Without driving from store to store the consumer can easily compare and contrast products. See who offers the best pricing and have more options to choose from. While a physical store has limited space, the same store on the internet will have full stock.
  • Easy to compare. Side by side comparisons are readily available and easy to do. When products are placed online, they come with all the specifics, and they want you to compare them with others, know they have the best options and come back for more!
  • Easy to find reviews. Because the competition is high, companies online want you to look at other consumer reviews. Good and bad reviews are on every site, not only can you see if the product is liked, you can also see the reasons behind the thumbs up or down.
  • Coupons and deals. With every online business wanting you, more and more coupons and deals can’t be avoided, which are totally great for customers. With major sites that act as department store, you may find items up to 80% off! Take advantage of the competition and find the best price available.

E-Commerce Advantages for Businesses

  • Increasing customer base. The customer base is every business’s main concern, online or off. When online, a business doesn’t have to worry about getting the best property in town, people from around the world have access to their products and can come back at anytime.
  • Rise in sales. By not managing a storefront, any business will have more sales online with a higher profit margin. They can redistribute money to make the consumer shopping experience faster and more efficient. While being available to international markets, more products will sell.
  • 24/7, 365 days. If it’s snowing and the roads are closed, or it’s too hot and humid to even step outside in the summer, or a holiday that every store in town closes, your online business is open for consumers 24/7 every day of the year. The doors never close and profits will keep rising.
  • Expand business reach. A great tool on the internet is…translation! A business online does not have to make a site for every language. With the right marketing, every consumer around the globe can find the business site, products and information without leaving home.
  • Recurring payments made easy. With a little research, every business can set up recurring payments. Find the provider that best suits your needs and billing will be done in a consistent manner; payments will be received in the same way.
  • Instant transactions. With e-commerce there is no more waiting for the check to clear, or a 30-day wait for certain other types of payment. Transactions are cleared immediately or at most two to three days for the money to clear through the banking system.

Disadvantages

E-Commerce Disadvantages for Customers

  • Privacy and security. Before making instant transactions online, be sure to check the sites certificates of security. While it may be easy and convenient to shop, no one wants their personal information to be stolen. While many sites are reputable, always do your research for those with less than sufficient security.
  • Quality. While e-commerce makes everything easily accessible, a consumer cannot actually touch products until they are delivered to the door. It is important to view the return policy before buying. Always make sure returning goods is an option.
  • Hidden costs. When making purchases, the consumer is aware of the product cost, shipping, handling and possible taxes. Be advised: there may be hidden fees that won’t show up on your purchasing bill but will show up on your form of payment. Extra handling fees may occur, especially with international purchases.
  • Delay in receiving goods. Although delivery of products is often quicker than expected, be prepared for delays. A snow storm in one place may throw off the shipping system across the board. There is also a chance that your product may be lost or delivered to the wrong address.
  • Need access to internet. Internet access is not free, and if you are using free wifi, there is the chance of information theft over an unsecure site. If you are wearing of your public library, or cannot afford the internet or computer at home, it may be best to shop locally.
  • Lack of personal interaction. While the rules and regulations of each e-commerce business is laid out for you to read, there is a lot to read and it may be confusing when it comes to the legalities. With large or important orders, there is no one you can talk to face to face when you have questions and concerns.

E-Commerce Disadvantages for Businesses

  • Security issues. While businesses make great efforts to keep themselves and the consumer safe, there are people out there that will break every firewall possible to get the information they want. We have all seen recently how the biggest and most renown business can be hacked online.
  • Credit card issues. Many credit card businesses will take the side of the consumer when there is dispute about billing—they want to keep their clients, too. This can lead to a loss for e-commerce business when goods have already been delivered and the payment is refunded back to the consumer.
  • Extra expense and expertise for e-commerce infrastructure. To be sure an online business is running correctly, money will have to be invested. As an owner, you need to know transactions are being handled properly and products are represented in the most truthful way. To make sure you get what you need, you will have to hire a professional to tie up any loose ends.
  • Needs for expanded reverse logistics. The infrastructure of an online business must be on point. This will be another cost to the business because money will need to be invested to ensure proper handling of all aspects of buying and selling, especially with disgruntled consumers that want more than a refund.
  • Sufficient internet service. Although it seems that everyone is now on the internet all the time, there are still areas in which network bandwidth can cause issues. Before setting up an e-commerce business, be sure your area can handle the telecommunication bandwidth you will need to run effectively.
  • Constant upkeep. When a business has started as e-commerce, they must be ready to make changes to stay compatible. While technology grows, the systems that support your business must be kept up to date or replaced if needed. There may be additional overhead in order to keep data bases and applications running.

Types of e - Commerce

1. Business-to-Business (B2B)

Business-to-Business (B2B) e-commerce encompasses all electronic transactions of goods or services conducted ​​between companies. Producers and traditional commerce wholesalers typically operate with this type of electronic commerce.

2. Business-to-Consumer (B2C)

The Business-to-Consumer type of e-commerce is distinguished by the establishment of electronic business relationships between businesses and final consumers. It corresponds to the retail section of e-commerce, where traditional retail trade normally operates.
These types of relationships can be easier and more dynamic, but also more sporadic or discontinued. This type of commerce has developed greatly, due to the advent of the web, and there are already many virtual stores and malls on the Internet, which sell all kinds of consumer goods, such as computers, software, books, shoes, cars, food, financial products, digital publications, etc.
When compared to buying retail in traditional commerce, the consumer usually has more information available in terms of informative content and there is also a widespread idea that you’ll be buying cheaper, without jeopardizing an equally personalized customer service, as well as ensuring quick processing and delivery of your order.

3. Consumer-to-Consumer (C2C)

Consumer-to-Consumer (C2C) type e-commerce encompasses all electronic transactions of goods or services conducted ​​between consumers. Generally, these transactions are conducted through a third party, which provides the online platform where the transactions are actually carried out.

e - Commerce

Electronic commerce, commonly written as e-commerce, is the trading in products or services using computer networks, such as the Internet.

 Electronic commerce draws on technologies such as mobile commerce, electronic funds transfer, supply chain management, Internet marketing, online transaction processing, electronic data interchange (EDI), inventory management systems, and automated data collection systems. Modern electronic commerce typically uses the World Wide Web for at least one part of the transaction's life cycle, although it may also use other technologies such as e-mail.

E-commerce (electronic commerce or EC) is the buying and selling of goods and services, or the transmitting of funds or data, over an electronic network, primarily the Internet. These business transactions occur either business-to-business, business-to-consumer, consumer-to-consumer or consumer-to-business. The terms e-commerce and e-business are often used interchangeably. The term e-tail is also sometimes used in reference to transactional processes around online retail.
  • E-commerce (electronic commerce or EC) is the buying and selling of goods and services, or the transmitting of funds or data, over an electronic network, primarily the Internet. These business transactions occur either business-to-business, business-to-consumer, consumer-to-consumer or consumer-to-business. The terms e-commerce and e-business are often used interchangeably. The term e-tail is also sometimes used in reference to transactional processes around online retail.