This definition found at http://ww.whatis.com


A "killer app" is jargon in the computer industry for an application program that intentionally or unintentionally gets you to make the decision to buy the system the application runs on. A classic example of a killer app was the spreadsheet program, the first of which was called VisiCalc, followed later by Lotus 1-2-3. The spreadsheet application helped introduce the personal computer into the department level of large and small businesses. A killer app can refer to a generic type of application that hasn't existed before, to a particular product that first introduces a new application type, or to any application with wide appeal.

When a new kind of computer hardware product comes out, such as a hand-held computer, manufacturers offer or hope to entice others to develop what they believe will be the killer app that will motivate potential customers to buy the new computer. In recent ads, IBM says that the killer app for e-business (which is both a concept and an array of Internet products and services that IBM sells) is "an application deployed over the Web that makes it easier to do the things you already do." Clearly, the Web browser and the Internet servers it communicates with became the killer app of the 1990s.


This article found at http://siliconvalley.internet.com/news/article.php/3531_1120841


May 13, 2002
Email Still the Killer App For Internet Users
By

Sending and receiving e-mail was the dominant online activity in 12 countries over the past six months, said the Nielsen//NetRatings First Quarter 2002 Global Internet Trends report. The report also found that at least 75 percent of households with Internet access participated in email.

"Of all the popular Internet applications, email is the global activity of choice," said Peter Steyn, director of the research firm. "We found that an impressive 90 percent of the adults in three major markets - Australia, the UK and the Netherlands - used email over the past six months, though the percentages were high for all 12 countries. In Hong Kong, 84 percent of those aged 16 and above have used e-mail".

"However, involvement in chat rooms was lower than 30 percent in all countries except Brazil, where 41 percent of adult Internet users used chat rooms, and in Spain where 38 percent used chat rooms. In Hong Kong, 28 percent of adults have participated in chat rooms.

Additionally, looking at audio-visual content and using Internet radio were well below 50 percent in all countries, and instant messaging has less than 30 percent penetration in several countries, including Hong Kong, France, Germany and Italy", said Steyn.

"The key to email's popularity is two-fold: it is a cost-effective way to communicate across great distances, and it does not require the same high connection speeds as some of the other applications.

In most countries, a 56k modem or slower modem is the most popular tool to access the Internet. However, in Hong Kong, an astonishing 58 percent of those who responded and have Internet access use either a cable modem or high-speed telephone connection to access the Internet. Not surprisingly, their rates for using Internet radio and looking at audio-visual content were among the highest worldwide" Steyn added. (See Table)

Globally, the number of people with access to the Internet via a home PC increased from 498.2 million people in Q4 2001 to 531.3 million in Q1 2002.

Table: Internet Activities Over The Past 6 Months: % Of People Aged 16+

Countries Sent/Received Emails Particpated In Chatrooms Used Instant Messaging Looked At Audio-Visual Content Used Radio Via The Internet
Australia 90 23 30 40 20
United Kingdom 90 16 35 41 21
Netherlands 90 21 29 30 17
Denmark 89 20 13 27 23
Switzerland 89 21 24 22 13
Sweden 88 19 32 29 25
Hong Kong 84 28 26 34 38
Germany 83 25 18 24 18
Spain 82 38 43 32 23
France 80 27 26 27 26
Italy 79 20 16 25 19
Brazil 75 41 42 35 40

Source: Nielsen//NetRatings