Microcomputers are the most common kind of computers in use as of 2014. The term âmicrocomputerâ was introduced with the advent of systems based on single chip microprocessors. The best-known early system was the Altair 8800, introduced in 1975.
The present invention relates to highly dispersible silica which has a high surface area, a process to manufacture the aforesaid silica and its use as a tire filler for utility vehicles, motor cycles and high speed vehicles. The use of precipitated silicas in elastomer mixtures such as tires has been known for some time.
The tests of dead diatoms are a major constituent of deep ocean sediment. Silica, or silicon dioxide, SiO 2, is sometimes considered a silicate, although it is the special case with no negative charge and no need for counter-ions. Silica is found in nature as the mineral quartz, and its polymorphs. silicate is a compound containing an anionic silicon compound. The great majority of silicates are oxides, but hexafluorosilicate ([SiF 6 ] 2â) and other anions are also included.