The 19th Century: Machine-Assisted Manufacturing Eli Whitney's proposal for a simplification and standardization of component parts marked a further milestone in the advance of the By the middle of the 19th century the general concepts of | |||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||
Actual Findings on Internet Advertising Although Web advertising becomes a significant portion of marketing budgets, advertisers are still unsure on how to unlock the potential of the Internet. Current findings show that: - Consumer brands spend only a fraction of their advertising budget on on-line advertising. - Technology companies spend five times more on advertising in the WWW. - While banner campaigns are still popular, there is no standardized solution for on-line advertising. - Ad pricing is based on CPM (costs per 1.000 visitors), rather than on results. - Personalized targeting has not yet taken hold. Instead advertisers mainly target on content. At the moment three dominant models are used for Internet advertising: Destination Sites: They use entertainment, high production values and information to pull users in and bring them back again. Micro Sites: Content sites or networks host small clusters of brand pages. Banner Campaigns: Those include other forms of Web advertising like sponsorships. | |||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||
Aeneas Tacticus Supposedly his real name was Aeneas of Stymphalus. He was a Greek military scientist and cryptographer. He invented an optical system for communication similar to a telegraph: the | |||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||
atbash Atbash is regarded as the simplest way of encryption. It is nothing else than a reverse-alphabet. a=z, b= y, c=x and so on. Many different nations used it in the early times of writing. for further explanations see: | |||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||
Polybius Polybius was one of the greatest historians of the ancient Greek. he lived from 200-118 BC. see: | |||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||
Polybius Checkerboard
It is a system, where letters get converted into numeric characters. The numbers were not written down and sent but signaled with torches. for example: A=1-1 B=1-2 C=1-3 W=5-2 for more information see: | |||||||||||||||||||||||||||||||||||||
| |||||||||||||||||||||||||||||||||||||