Impact of It on Society

Topics: Backup, Computer virus, Incremental backup Pages: 7 (2336 words) Published: February 13, 2011
In the past few decades there has been a revolution in computing and communications, and all indications are that technological progress and use of information technology will continue at a rapid pace. Accompanying and supporting the dramatic increases in the power and use of new information technologies has been the declining cost of communications as a result of both technological improvements and increased competition. Today, innovations in information technology are having wide-ranging effects across society so, Choices made now will have long lasting consequences, and attention must be paid to their social and economic impacts. With the Internet, e-commerce is rapidly expanding into a fast-moving, open global market with an ever-increasing number of participants. The open and global nature of e-commerce is likely to increase market size and change market structure, both in terms of the number and size of players and the way in which players compete on international markets It is popular wisdom that people today su_er information overload. A lot of the information available on the Internet is incomplete and even incorrect. People spend more and more of their time absorbing irrelevant information just because it is available and they think they should know about it. Therefore, it must be studied how people assign credibility to the information they collect in order to invent and develop new credibility systems to help consumers to manage the information overload. The ongoing computing and communications revolution has numerous economic and social impacts on modern society and requires serious social science investigation in order to manage its risks and dangers. Such work would be valuable for both social policy and technology design. Decisions have to be taken carefully. Many choices being made now will be costly or difficult to modify in the future.

Computer worm
A computer worm is a self-replicating malware computer program, which uses a computer network to send copies of itself to other nodes (computers on the network) and it may do so without any user intervention. This is due to security shortcomings on the target computer. Unlike a virus, it does not need to attach itself to an existing program. Worms almost always cause at least some harm to the network, even if only by consuming bandwidth, whereas viruses almost always corrupt or modify files on a targeted computer. Types of Computer worms

Email Worms
These worms spread through infected email messages which may contain an attachment or a link of an infected website. 

Instant Messaging Worms
These worms spread via instant messaging applications by sending links of infected websites to the entire contact list.

Internet Worms
Internet worm tries to gain access to any vulnerable machine either by scanning the Internet and/or using the local operating system.

IRC Worms
These worms spread through chat channels, sending infected files or links to infected websites.

File-sharing Networks Worms
These worms place a copy of themselves in a shared folder under a harmless name and thus the infected files spread P2P network. Viruses
A computer virus is a computer program that can copy itself[1] and infect a computer. A true virus can spread from one computer to another (in some form of executable code) when its host is taken to the target computer; for instance because a user sent it over a network or the Internet, or carried it on a removable medium such as a floppy disk, CD, DVD, or USB drive.[2] Viruses can increase their chances of spreading to other computers by infecting files on a network file system or a file system that is accessed by another computer.[3 Trojan horse

A Trojan horse, or Trojan, is software that appears to perform a desirable function for the user prior to run or install, but (perhaps in addition to the expected function) steals information or harms the system.[1] The term is derived from the Trojan Horse story in Greek...
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