Skip to main content

Posts

OSI model |educator byte

  OSI stands for   Open Systems Interconnection . It has been developed by ISO – ‘ International Organization of Standardization  The OSI Model (Open Systems Interconnection Model) is a conceptual framework used to describe the functions of a networking system. The OSI model characterizes computing functions into a universal set of rules and requirements in order to support interoperability between different products and software. In the OSI reference model, the communications between a computing system are split into seven different abstraction layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.                 Physical Layer (Layer 1)  The lowest layer of the OSI reference model is the physical layer. It is responsible for the actual physical connection between the devices. The physical layer contains information in the form of  bits.  It is responsible for transmitting individua...
1 comment
Read more
Recent posts

Basic Electronics Concept

Basic Difference between Electrical and Electronic Devices  Electrical Device The instruments that use electrical energy for their operation are called electrical devices. Basically copper and aluminum are used as metallic Substances for conduction process The working principle of these instruments is that they transform electrical energy in other types of energy 1) These devices operate on AC current. 2) Electrical devices are used to perform mechanical works. 3) Current flow due to charges in motion 4) There device operate on alternating current 5) Uses resistance and capacitor for their operation 6) Electric energy transform in heat 7) Examples of electrical devices are motor, generator, and transformer, etc. 8) For operation, these instruments needed a large value of voltage. 9) These devices use larger power than electronic devices. 10) Condutor is operates as condutive device 11) These devices do not do the manipulation of data. 12) Thes...
Post a Comment
Read more

Introduction to Semiconductor ,Conductor and Insulator

  A semiconductor material is one whose electrical properties lie in between insulators and Conductors.  Solid-state materials are commonly grouped into three classes: insulators, semiconductors, and conductors. (At low temperatures some conductors, semiconductors, and insulators may become superconductors.)  Examples : germanium and silicon.  Insulators An insulator is a material that does not conduct electrical current. Most good insulators are compounds rather than single-element materials and have very high resistivities. Valence electrons are tightly bound to the atoms; therefore, there are very few free electrons in an insulator.  Examples of insulators are rubber, plastics, glass, mica, and quartz. Conductors A conductor is a material that easily conducts electrical current. Most metals are good conductors. The best conductors are single-element materials, such as copper (Cu), silver (Ag), gold (Au), and aluminum (Al), which are characterized by...
3 comments
Read more

Basic Concept Of Logic Gates Including AND OR NOT and Universal Gate NAND , NOR #educatorbyte

                               Basic Concept Of Logic Gates Incuding  AND OR NOT and Universal Gate NAND , NOR Logic gates are the basic elements in digital electronics.  Basic gates can be constructed from the universal gates. There are two universal gates in the digital electronics. They are NAND gate and NOR gate. Logical operation performed on one or more binary inputs that produces a single binary output. In modern electronics  most gates are made from  metal oxide semiconductor field effect transistors All digital systems can be constructed by only three basic logic gates. These basic gates are called the AND gate, the OR gate, and the NOT gate  Basic logic Gates (AND, OR, and NOT gates)     ☆☆☆ AND and NAND gates. ☆AND gate gives high output (1) if all the inputs are 1’s. otherwise the output will be low (0).    Its Boolean algebra representation is:...
2 comments
Read more