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Introduction of Information Technology (Application of information…
Introduction of Information Technology 
Definition
The use of computer hardware and software to store,retrieve and manipulate information
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Disadvantages
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Dominant culture
influence the teenagers on how they act, dress and behave
Categories of computers
supercomputer
the fastest ,most powerful and most expensive computer that is capable of processing many trillions of instructions in a single second
requiring complex,sophisticated mathematical calculations
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Mainframe
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Large ,expensive,powerful computer can handle hundreds or thousands of connected users simultaneously
Personal computer
can perform all of its input,output and storage activities by itself
contain processor,memory and one or more input,output and storage device
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2 type
desktop
designed to be in a stationary location ,where all of its components fit on or under a desk or table
notebook
a portable,personal computer often designed to fit on your lap
Mobile computer
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example
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Tablet
a thin,lighter-weight mobile computer that has a touch screen
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Netbook
smaller,lighter,and often not as powerful as a traditional notebook computer
Mobile device
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store programs and data permanently on special memory inside system unit or on small storage media such as memory card
example
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Portable Media Player
Can store, organize, and play or view digital media
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Digital Media Player
Streams digital media from a computer or network to a television,projector, or others entertainment device
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