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Senin, 09 Agustus 2010

The first Laptos And Mouse In The world


Laptops are very popular these days among people because the portability. So when we look around the history of the laptops. The first laptop (Note book) was GridCompass1100 also called Gris was designed by 1979 by a Briton, William Moggride.

This laptop is designed to Grid System Corporation. Features of this laptop are 320x200 screen (electroluminescent graphics display), an intel8086 processor, 340 KB of magnetic bubble memory and a 1200 bps modem. This was used NASA on the space shuttle programs and the US military in 1980s. This weighted 5 Kg and cost $ 8000-10000.


Computer mouse is very essential thing when you using computers, now days in laptops, there are touch pads but when using mouse it is very easy.
In 1963, the first mouse invented by Douglas Engelbart at the Stanford Research institute. This inventor Douglas Engelbart also invented the hypertext. In this first mouse used two wheels positioned at a 90 degree to each other to keep track of the movement. That’s how it works.
Another some popular mouse is ball mouse it invented in 1972. An optical mouse invented in 1980 but it didn’t popular at that time, but presently it is very popular among home PCs.


This picture shows the wheels that make contact with working surface.

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