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.
Silica flour is nearly pure SiO 2 finely ground. Silica flour has been used as a polisher or buffer, as well as paint extender, abrasive, and filler for cosmetics. Silica flour has been associated with all types of silicosis, including acute silicosis.ilicosis (particularly the acute form) is characterized by shortness of breath, cough, fever, and cyanosis (bluish skin). It may often be misdiagnosed as pulmonary edema (fluid in the lungs), pneumonia, or tuberculosis. Silicosis resulted in 46,000 deaths globally in 2013 down from 55,000 deaths in 1990.