computer programe

Computer program electronic device that processes data and perform caluculations and other symbol-manipulation tasks.There are three types:the digital computer which maipulates information coded a binary numbers works with continousely varying quantities and the hybrid computer which has charcterstics of both anologue and digital computers .
There are four classifications of digital computers corresponding roughly to their size and intended use:microcomputers incluging portable computers are the smallest and most common ,used in small business,at home,and schools ;microcomputers are found in medium sized buisiness and university departments (althrough the distinction between microcomputers and minicomputers is disappearing);mainframes,which can often services several hundred users simulatneously are found in large organizations such as national companies;and super computers mostly used for highly-comples scientific taskssuch as analyzing the results of weather fore casting.