Computers are classified by a number of aspects. By purpose/functionality they are classified into special and general purpose. By size they are classified into mainframes, mini computers, desktops and portables. Historically, the more recent generations of computers were smaller in size and more general-purpose than their predecessors.
importance of computer
identify the major eras in u. s. history from 1877 to present
Livy did not explain history. He reconstructed the history of early Rome, but did not present any theories about history.
Art History!
documentation of events present and past
A Brief history of computer virus from 1950 to present
pre history is before written records so anything previous to about 8000 years ago. history is the time between 6000 BCE to the present
The full history of computers is too long to type in one WikiAnswers answer, so I would recommend Googling it.
past history- means that history already happened or the history is done present history- means that history may happen at present or the happening in the present today
discuss the history of libraries to the present day
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Not present or attending.
At the present time.
present,gift
the way you present yourself
to offer or to present something
A sugar present in milk