Timeline BC

~ 1900 BC: Egyptian writers use non-standard Hieroglyphs in inscriptions of a royal tomb; supposedly this is not the first but the first documented example of written cryptography

1500 an enciphered formula for the production of pottery is done in Mesopotamia

parts of the Hebrew writing of Jeremiah's words are written down in "atbash", which is nothing else than a reverse alphabet and one of the first famous methods of enciphering

4th century Aeneas Tacticus invents a form of beacons, by introducing a sort of water-clock

487 the Spartans introduce the so called "skytale" for sending short secret messages to and from the battle field

170 Polybius develops a system to convert letters into numerical characters, an invention called the Polybius Chequerboard.

50-60 Julius Caesar develops an enciphering method, later called the Caesar Cipher, shifting each letter of the alphabet an amount which is fixed before. Like atbash this is a monoalphabetic substitution.

TEXTBLOCK 1/2 // URL: http://world-information.org/wio/infostructure/100437611776/100438659084
 
On-line Advertising Revenues

Although Internet advertising only really started in 1994, revenues showed a steady and fast growth. In 1997 US$ 906.5 million were spent on on-line advertising. Compared with advertising revenue for the television industry in equivalent dollars for its third year, the Internet was slightly ahead, at US$ 907 million compared to television's US$ 834 million. 1998 on-line advertising grew by 112 percent to US$ 1.92 billion in revenues, and is on track to hit US$ 4 billion in 1999, which would put Internet advertising at about 2 percent of the U.S. ad market.

Table: Spending on On-Line Advertising by Category

(first quarter 1999)

Category

 Percent
Consumer-related

 27 %
Financial services

 21 %
Computing

 20 %
Retail/mail order

 13 %
New media

 8 %


Table: Types of On-Line Advertising

(first quarter 1999)

Type of Advertising

 Percent
Banners

 58 %
Sponsorships

 29 %
Interstitials

 6 %
E-mail

 1 %
Others

 6 %


Source: Internet Advertising Bureau (IAB).

TEXTBLOCK 2/2 // URL: http://world-information.org/wio/infostructure/100437611652/100438657944
 
Java Applets

Java applets are small programs that can be sent along with a Web page to a user. Java applets can perform interactive animations, immediate calculations, or other simple tasks without having to send a user request back to the server. They are written in Java, a platform-independent computer language, which was invented by Sun Microsystems, Inc.

Source: Whatis.com

INDEXCARD, 1/2
 
Intellectual property

Intellectual property, very generally, relates to the output that result from intellectual activity in the industrial, scientific, literary and artistic fields. Traditionally intellectual property is divided into two branches: 1) industrial property (inventions, marks, industrial designs, unfair competition and geographical indications), and 2) copyright. The protection of intellectual property is guaranteed through a variety of laws, which grant the creators of intellectual goods, and services certain time-limited rights to control the use made of their products.

INDEXCARD, 2/2