Data Communication
Nagaland Board · Class 12 · Computer Science
All formulas from Data Communication in Nagaland Board Class 12 Computer Science. Key equations, constants, and identities for board exam preparation.
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Measuring Capacity of Communication Media
Bandwidth = range of frequencies available for transmission
Data transfer rate = number of bits transmitted per second
1 KHz = 1000 Hz; 1 MHz = 1000 KHz = 1000000 Hz
1 Kbps = 2^10 bps = 1024 bps; 1 Mbps = 2^20 bps = 1024 Kbps; 1 Gbps = 2^30 bps = 1024 Mbps; 1 Tbps = 2^40 bps = 1024 Gbps
Required data rate = (10 × 1600 × 8) / 20 = 6400 bps = 6.25 Kbps
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