by Dinesh Thakur

A computer input device that reads the BAR CODE printed on an article of merchandise and converts it to a number: such readers depend on the reflection of a low-powered laser beam to read the pattern of stripes. Bar code readers are available both as hand-held units for stocktaking, and built into tills or supermarket checkout stations.



 
by Dinesh Thakur

A pattern of vertical black stripes, of variable width, printed on the packaging of merchandise sold in shops to enable automatic stock control and pricing: the stripe widths encode a number that identifies the item. A BAR CODE READER measures these stripes to calculate the number, which can then be looked up in a price database by software running in a POINT-OF-SALE TERMINAL.

 
by Dinesh Thakur

Imagine a web page as seen on a computer through a Browser. Now suppose that web page was stored only in a highly encrypted format so that the Browser needed extra software to read it, and even then only after the right password was entered. If any other Browser had that same software added, and the same key to decode the encryption, it could also read the web page, but no-one else could. For anyone else using the Internet that web page would be unreadable.



 
by Dinesh Thakur

Types of e – commerce:-

    Business to customer (B to C):-It means the consumer is motivated by business.

 
by Dinesh Thakur

Limitations of e – commerce:-

 

1. Security:- the security risk in e – commerce can be-

• client / server risk

• data transfer and transaction risk

• virus risk

 
by Dinesh Thakur

Advantage of e – commerce:-

 

1. Facilitates the globalization of business:-e – commerce facilitates the globalization of business by providing some economical access to distant markets and by supporting new opportunities for firms to increase economies by distributing their products internationally.

 
by Dinesh Thakur

Conducting business online. Selling goods, in the traditional sense, is possible to do electronically because of certain software programs that run the main functions of an e-commerce Web site, including product display, online ordering, and inventory management.

 
by Dinesh Thakur

The term commerce is define as trading of good & services or if ‘e’ for ‘electronic’ is added to this, the definition of e – commerce is defined as trading of goods, services, information or anything else of value between two entities over the internet.



 
by Dinesh Thakur

1992 saw the release of Tim Berner-Lee's World Wide Web. It was with the World Wide Web that the world really began to see the development of E-Commerce as we know it today. By 1994 corporations like Pizza Hut began to take orders for pizza over their website, showing that the World Wide Web was truly beginning to take hold as a commercially viable endeavor.

 
by Dinesh Thakur

In the past two years, e-business seems to have permeated every aspect of daily life. In just a short time, both individuals and organizations have embraced Internet technologies to enhance productivity, maximize convenience, and improve communications globally. From banking to shopping to entertaining, the Internet has become integral to daily activities.

 
by Dinesh Thakur

An e-business model is simply the approach a company takes to become a profitable business on the Internet. There are many buzzwords that define aspects of electronic business, and there are subgroups as well, such as content providers, auction sites, and pure-play Internet retailers in the business-to-consumer space.

 
by Dinesh Thakur

Customer relationships are becoming a more important factor in differentiating one business from another. In order to stay competitive, e-businesses in every industry have begun to analyze these relationships with customers using CRM solutions.

 
by Dinesh Thakur

Encryption-based VPNs create a VPN using the public Internet infrastructure. A corporation establishes public Internet connections from each of its office locations to an ISP's PoP. The corporation can establish the connections with a single ISP or multiple ISPs.

 
by Dinesh Thakur

Security issues in computer networks have become one of the most important areas of research with the fantastic proliferation of Internet, and the emergence of a series on sensitive on-line applications. Hiding sensitive transactions from intruders as well as providing a reliable means for authenticating oneself is a very important area of research.



 
by Dinesh Thakur

Extranet refers to a group of websites, belonging to independent entities that are combined together in order to share information. This is in contrast to an intranet, which is a private site that is only accessible for employees of an entity.



 
by Dinesh Thakur

Customers pay for merchandise (Goods) by writing an electronic check that is transmitted electronically by email, fax or phone. The "cheque" is a message that contains all of the information that is found on an ordinary cheque, but it is signed digitally, or indorsed.



 
by Dinesh Thakur

Business to Business or B2B refers to electronic commerce between businesses rather than between a business and a consumer. B2B businesses often deal with hundreds or even thousands of other businesses, either as customers or suppliers.

 
by Dinesh Thakur

This is a software/hardware combination that connects an organization’s internal networks to the Internet. As such, its primary concern is security: it uses rules to determine what information can be passed in either direction, based on the originator address, the server address and the type of information to be transferred. In plain English something that monitors all communication between the company network and the Internet and makes sure that this communication is legitimate. Broadly speaking there are two main types of firewall: network level and application level.