as its own processing capabilities and is intended for use by a single primary user. All PCs use the microprocessor technology, an entire processing unit or "CPU" on one silicon chip. Businesses and individuals rely on personal computers for many functions including creating word documents, desktop publishing, accounting, database management and spreadsheet preparation.
             Surprisingly, the electronic computer industry is only about fifty years old. Howard Aiken developed the first electronic computer in the 1940s. His machine used rolls of paper with instructions punched into them. The design was very time consuming and limited in its use because it required extensive rewiring for each program entered into the computer. Used by the military, the first general purpose computer was completed in 1946; and though it still needed partial rewiring, it had a far greate
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