Twisted-Pair cable It consists of four pairs of copper wires coated with an insulating materials like plastic or teflon and twisted together. It is often used data network for short and medium length connections because of it's relatively lower cost compared to optical fiber and...

Number system A number system in base r or radius r uses unique symbols for r digits. One or more digits are combined to get a number. In computers, we are concerned with four kinds of number systems, as follows: Decimal Number System      ------------   ...

Transmission Media Transmission media the pathway network entities used to connect each other. Computer transmission media includes guided media unguided media Guided  media Guided media transmits signals by sending electricity or light over a cable or wire It uses a cabling...

Karnaugh Map (K-MAP) The K-MAP is a graphical representation that provides a systematic method for simplifying a boolean expression. Two Variable K-MAP For n variable k-map 2^n cells are required.Therefore for  two variable k-map,2^2=4 cells are required. Three Variable...