Download 100 Ideas that Changed the Web by Jim Boulton PDF

By Jim Boulton

ISBN-10: 1780673701

ISBN-13: 9781780673707

This leading edge identify appears on the heritage of the internet from its early roots within the study tasks of the united states executive to the interactive on-line global we all know and use today.

Fully illustrated with photos of early computing gear and the interior tale of the web world's movers and shakers, the ebook explains the origins of the Web's key applied sciences, akin to hypertext and mark-up language, the social principles that underlie its networks, resembling open resource, and inventive commons, and key moments in its improvement, similar to the stream to broadband and the Dotcom Crash. Later principles examine the origins of social networking and the most recent advancements on the net, equivalent to The Cloud and the Semantic Web.

Following the layout of the former titles within the sequence, this e-book may be in a brand new, smaller structure. It presents an educated and engaging illustrated background of our such a lot used and fastest-developing know-how.

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Notoriously, on 2 November 1988, Robert Tappan Morris wrote a self-replicating, selfpropagating program known as the Internet Worm. His aim, he claims, was to measure the size of the internet. It crippled thousands of computers within a matter of hours, confirming everyone’s worst fears about what a hacker could do. Morris was sentenced to three years’ probation for what essentially was a prank gone wrong. More recent hacks have been of a political nature. Anonymous is a loose coalition of hacktivists that began with a protest at attempts to suppress antiScientology content on the Web.

He designed a circular yellow face with two black dots for eyes and a simple curve for a mouth. It took him ten minutes and he was paid $45. In 1970, brothers Bernard and Murray Spain added the line ‘Have a Nice Day’ and sold millions of dollars’ worth of merchandise. Two years later, Franklin Loufrani gave the face a name and took the ‘Smiley’ to Paris, licensing it to French newspapers to highlight positive stories. Harvey Ball’s design had gone global. ’ The first use of the smiley face on a screen was in 1982 at Carnegie Mellon University.

This is in contrast with lossless data compression, such as GIF, where no data is lost. The advantage of lossy over lossless compression, though, is that smaller file sizes can be generated, while still meeting the requirements of the file. The JPEG compression algorithm works in a number of stages. Firstly, the colour range is halved, moving from 512 variations of colours to 256. This is imperceptible to the human eye. The image is then divided into 8 x 8-pixel blocks. For each block, the maximum compression is 64:1.

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