- Supercomputers: very complex calculations (weather forecasting, quantum physics)
- Mainframe Computers: bulk data processing (large organizations)
- Mini Computers: used by larger companies
- Microcomputers / personal computers
- 2007: A 75-year-old woman in Sweden has a 40 gigabits-per-second fiber-optic connection. Her son - a network specialist - and the head of the Karlstad city network unit installed the connection.
- 2008: Researchers of Bell Labs in France managed to transfer data over a distance of 2550km at a speed of 16.4 Terrabytes per second.
- 2009: Scientists at Bell Labs made a new system which achieved speeds of 100 Petabits per second. One Petabyte is is 1000 terabytes. The new technique includes 155 lasers, each operating at a different frequency and carrying 100Gbit/s each.
- cheap web hosting companies in the US Cheap hostingplans from popular and established hosting companies in the US such as Hostgator, Lunarpages, Apollohosting and Bluehost.
- Apple
- Acer
- Asus
- Compaq
- Dell
- EMachines
- Fujitsu
- Gateway
- Hewlett Packard
- Samsung
- Sony
- Toshiba
COMPUTER TYPES
- Desktop computer
- Laptop
- Work Station
- Tablet computer
- Hand Held Computer
Supercomputers
Supercomputers are often purpose-built for just one organisation. The fastest supercomputer in the world yet (June 2009) is the Roadrunner system at DOE’s Los Alamos National Laboratory. Second is the Jaguar system installed at the DOE’s Oak Ridge National Laboratory. DOE is the acronym for (US)Department of Energy . IBM is building another supercomputer for the DOE called the 'Sequoia'. This supermachine should be ready in 2012 and will have a maximum speed of 20 Petaflops - the equivalent of more than 2 million laptops. IBM is the most important manufacturer of supercomputers. Other manufacturers are Cray Inc, Sun Microsystems and Bull SA.
Mainframe computers
The first mainframes between 1955-1980 were enormous computers with the size of a room. All units were hung into frames. Nowadays the mainframes are more compact and used for bulk data processing such as banking and insurance businesses. Hundreds of users can use the computer simultaneously. IBM dominate the mainframe computer market with a 90% market share. Other mainframe manufacturers are Unisys, Bull, Fujitsu, Hitachi, and NEC.
Fastest Internet connection
Webhosting
Manufacturers of personal computers
Most expensive computers
The Earth Simulator in Japan was about $400 million. The IBM BlueGene/L supercomputer for the US Department Of Energy along with the ASCI Purple supercomputer was $290.000.000. The most expensive personal computer in Korea is the '701 Jewelry' from from Moneual. Price is $30.000. World’s most expensive laptop is the Tulip E-Go Diamond laptop set with diamonds and a price tag of €283.000. World's most expensive computer mouse is from the Swiss manufacturer 'Pat Says Now'. The cast is from 18 carat white gold and set with 59 brilliant cut diamonds: price allmost $24.000.
Oldest domain name
1 15-Mar-1985 SYMBOLICS.COM
2 24-Apr-1985 BBN.COM
3 24-May-1985 THINK.COM
4 11-Jul-1985 MCC.COM
5 30-Sep-1985 DEC.COM
6 07-Nov-1985 NORTHROP.COM
7 09-Jan-1986 XEROX.COM
8 17-Jan-1986 SRI.COM
9 03-Mar-1986 HP.COM
10 05-Mar-1986 BELLCORE.COM
11 19-Mar-1986 IBM.COM
11 19-Mar-1986 SUN.COM
13 25-Mar-1986 INTEL.COM
26 02-Sep-1986 BOEING.COM
64 19-Feb-1987 APPLE.COM
73 14-May-1987 CISCO.COM
81 27-Jul-1987 LOCKHEED.COM
Internet Worldwide
In the US+Canada live in 2009 about 340 million people: 250 million of them use internet (74% penetration grade). France: 62 million people/67% use internet, Germany 82 million/67%, the UK 61 million/79% and Russia 140 million/27%. The amount of internet users in China had reached allmost 300 million at the end of 2008. The internet penetration was 23%.