Archive of posts filed under the Electronics STUDY MATERIALS category.

Semiconductor diode, Break down diode and Tunnel diode

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Semiconductor diode Ideal diode conduct current in only one direction. Forward resistance of ideal diode is zero. Reverse bias resistance value is infinity. Barrier potential is generated by diffusion of electrons. PN diode can be made by alloying technique, diffusion technique, vapour deposition technique (epitaxial growth), rate growth technique Thickness of depletion region is 1 …

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Basics of electronics (solid state electronics)

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Insulator has negative temperature coefficient. Intrinsic Semiconductor has negative temperature coefficient. Extrinsic Semiconductor has positive temperature coefficient. Metal has positive temperature coefficient. Resistance of semiconductor decreases exponentially in case of insulator it is linearly decreasing. In metal forbidden band gap Eg between conduction and valance band is zero, i.e, two bands are overlapped Band gap …

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Basics of Computer Networking

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This chapter focuses on basics of COMPUTER NETWORKING. This will help you to study higher levels of computer networking. OSI – open system interconnection ( This is the very basic of computer networking. OSI 7 layers in chronological order – physical layer data link layer network layer transport layer session layer presentation layer application layer …

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Data Structure and Modem

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Data structure is a collection of data elements. It is also called data type. It is a tool to solve problems. Used to represent entities and to implement entities operations. Elements in the data type is called values of the type. There are four basic/atomic/primitive data types – int, float, char, double. More data types …

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Input output organisation

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I/O system organisation Two methods for identifying I/O device identification, they are 8 bit address and 16 bit address identification. 8 bit address is used in peripheral mapped I/O  and 16 bit address is used in memory mapped I/O. In 8 bit address lines I/O read control signal is used for input devices and I/O …

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