Hi my Friends Thise is Book Art see ok
only used books and made this Art
Monday, September 3, 2007
Friday, August 24, 2007
INFORMATION TECHNOLOGY
Analogue or digital
Signals can either be analogue or digital. In an analogue signal, the signal is varied continuously with respect to the information. In a digital signal, the information is encoded as a set of discrete values (e.g. 1's and 0's). Telecommunication devices convert different types of information, such as sound and video, into electrical or optical signals. Electrical signals typically travel along a medium such as copper wire or are carried over the air as electromagnetic waves. Optical signals typically travel along a medium such as strands of glass fibre. When a signal reaches its destination, the receiver converts the signal back into a form suitable for human interpretation (e.g. sound for a telephone, moving images for a television, or words and pictures for a computer screen).
Signals can either be analogue or digital. In an analogue signal, the signal is varied continuously with respect to the information. In a digital signal, the information is encoded as a set of discrete values (e.g. 1's and 0's). Telecommunication devices convert different types of information, such as sound and video, into electrical or optical signals. Electrical signals typically travel along a medium such as copper wire or are carried over the air as electromagnetic waves. Optical signals typically travel along a medium such as strands of glass fibre. When a signal reaches its destination, the receiver converts the signal back into a form suitable for human interpretation (e.g. sound for a telephone, moving images for a television, or words and pictures for a computer screen).
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