Jun 21, 13 •
4540 Views •
Notes •
shweta singh •
6 Comments
The backbone network networks have been categorized as the – bus network topology A bus network is the type of network in which a particular set of the stations or workstations are connected all together through the communication channel that can be
Jun 21, 13 •
3427 Views •
Notes •
Top Coaching Institute •
2 Comments
IMAGE COMPRESSION When the large amount of data is stored in a space is known as image compression. It is of two types Lossless compression Lossy compression LOSSLESS COMPRESSION: It is a reversible process No information is lost It is useful for text data
Jun 21, 13 •
3658 Views •
Notes •
Top Coaching Institute •
3 Comments
Optical Sources – LED and Laser Diodes LED STRUCTURE – They can be seen glowing green, yellow or red in vehicles, telephones, cameras. – They are inexpensive and highly reliable light sources. – The LED used in optical communications
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Jun 21, 13 •
2880 Views •
Notes •
Rachita Mishra •
1 Comment
Television Standards: A number of Television standards now coexist the worldwide. It also offers detail listings of standards prevalent in various countries.Television broadcast commenced approximately 50 years ago. The knowledge gained over the years has
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Jun 20, 13 •
6286 Views •
Notes •
Rachita Mishra •
1 Comment
Composite Video signal:: The composite video waveform contains all the information needed for complete CRT picture, line by line and field by field. The signal is used in picture tube to reproduce picture on the scanning raster. The composite video consists