Nov 18, 2011
The Compact Disc (also known as a CD) is an optical disc used to store digital data. It was originally developed to store and playback sound recordings exclusively, but later expanded to encompass data storage (CD-ROM), write-once audio and data storage (CD-R), rewritable media (CD-RW), Video Compact Discs (VCD), Super Video Compact Discs (SVCD), PhotoCD, PictureCD, CD-i, and Enhanced CD. Audio CDs and audio CD players have been commercially available since October 1982. Standard CDs have a diameter of 120 millimetres (4.7 in) and can hold up to 80 minutes of uncompressed audio or 700 MB (700 × 220 bytes) of data. The Mini CD has various diameters ranging from 60 to 80 millimetres (2.4 to 3.1 in); they are sometimes used for CD singles, storing up to 24 minutes of audio or delivering device drivers. CD-ROMs and CD-Rs remain widely used technologies in the computer industry. The CD and its extensions are successful: in 2004, worldwide sales of CD audio, CD-ROM, and CD-R reached about 30 billion discs. By 2007, 200 billion CDs had been sold worldwide. Compact Discs are increasingly being replaced or supplemented by other forms of digital distribution and storage, such as downloading and flash drives, with audio CD sales dropping nearly 50% from their peak in 2000.
Nov 17, 2011
Green computing, the study and practice of efficient and eco-friendly computing resources, is now under the attention of not only environmental organizations, but also businesses from other industries. In recent years, companies in the computer industry have come to realize that going green is in their best interest, both in terms of public relations and reduced costs. This article will take a look at several green initiatives currently under way in the computer industry, as well as issues that have been raised regarding these initiatives. We will also have a talk with VIA to learn more about the future of green computing.
In 1941 was created the world's first working programmable, fully automatic computing machine called Zuse Z3, in 1981 (40 years later) was created first personal computer (PC) by company IBM, 20 years later in August 24, 2001 we got world's best OS ever - Windows XP. With famous XP we had all and it was widely accepted and applied, there wasn't OS in the world that could replace him, many of them try but fail ( we all remember Windows Vista) and now 10 years later we have Windows 7 that we could call XP's rightful successor. We all know how powerful and good XP was and now we got Win 7 which is 10 times better and smarter than XP, we can only imagine how long Win 7 will rule in world of OS and we can ask our self could it repeat what XP did?