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Transmission Media

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  Transmission Media In data communication terminology, a transmission medium is a physical path between the transmitter and the receiver it is the channel through which data is sent from one place to another. Transmission media is broadly classified into the following types: Types of transmission media: Guided Media 1)Twisted pair cable 2)Coaxial cable 3)Optical fibre cable Unguided Media 1)Radio waves 2)Microwave 3)Infrared 1.Guided Media It is also referred to as wired or bounded transmission media. Signals being transmitted are directed and confined in a narrow pathway by using physical links features. -High speed -Secure -Used for comparatively shorter distances. -Use for comparatively shorter distances -There are three major types of guided media 1)Twisted pair cable It consists of two separately insulated conductor wires wound about each other generally, several such pairs are bundled together in a protective sheath. They are the most widely used transmission media. Twiste...
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Python Interpreter

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  PYTHON Python for Developing Desktop GUI Applications, Websites and Web Applications Python Basics Python was developed by Guido Van Résumé in early 1990’s and it was published in 1991 python 3.0 was released in 2008. And is interpreted language it’s not compiled, and the interpreter will check the code line by line. This article can used to learn very basics of python programming language. # Some facts about python!! Python is currently the most widely used multi-purpose, high-level programming language. Python allows programming language procedural paradigms. Python programs generally are smaller than other to type relatively less java. Programmers have to type relatively less and indentation requirement of the language, makes them readable all the time. Python language is being by almost all Tech giant companies like- Google, Amazon, Facebook, Instagram, Prop Box, uber ……etc. The biggest strength of python is huge collection of standard libraries which can b...
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Artificial intelligence (by Naseema Shaikh)

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   ARTIFICIAL INTELLIGENCE -The term "Artificial Intelligence" was coined more than 60 years ago, but only recently have we begun to realize all the benefits of AI, machine learning and deep learning in our everyday lives. -In today world. Technology is growing very fast, and we are getting in touch with different new technologies day by day here, one of the booming technologies of computer science is Artificial Intelligence which is ready to create a new revolution in the world my making intelligent machine the Artificial Intelligence.  -The artificial intelligence is now all around us it currently working with a Varity of subfields ranging from general to specific, such as self-driving cars. playing chess, painting etc. -AI is one of the fascinating and universal fields of computer science which has a great scope in future AI holds a tendency to cause a machine to work as a human. -Artificial intelligence is composed of two worlds Artificial and Intelligence , which...
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Software

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SOFTWARE Software, which is abbreviated as SW or s/w is a set of programs that enables. The Hardware to perform a specific task all the programs that run the computer are software. The software can be of three types: system software application software, and programming software. SYSTEM SOFTWARE The system software is the main software that run the computer. When you turn on the computer, it activates the hardware and controls and coordinates their functioning the application programs are also controlled by system software.  An operating system is an example of system software. Operating System An operating system is the system software that works as an interface to enable the user to communicate with the computer. It manages and coordinates the functioning of hardware and software of the computer. The commonly used operating system are Microsoft windows, Linux, and Apple Mac OS X.  -BIOS It stands for basic output system. It is a type of system software, which is stored in re...
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Operating System (by Naseema Shaikh)

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Operating System -An operating system is the system software that works as an interface to enable the user to communicate with the computer. It manages and coordinate with functioning of hardware and software of the computer. The commonly used operating system are Microsoft Windows, Linux, and Apple Mac OS X.  -The operating system is a program with the following feature. -An operating system is a program that acts as an interface between the software and the computer hardware. -It is an integrated set of specialized programs used to manage overall resources and operations of the computer. -It is a specialized software that controls and monitors the execution of all other programs that reside in the computer, including application programs and other system software. OBJECTIVES OF OPERATING SYSTEM: - -The objective of the operating is: 1) To make the computer system convenient to use in an efficient manner. 2) To hide the details of the hardware resources from the users. 3) T...
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Computer Viruses

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  #COMPUTER VIRUSES -Computer viruses are unwanted software programmes or pieces of code interfere with the functioning they spread through contaminated files, data, and insecure networks once it enters your system , it can replicate to produce copies of itself to spread from one program to another program and from one infected computer to another computer. so, we can say that it is a self-replicating computer program that interferes with the functioning of the computer by infecting files, data, programmes, etc. First Computer Virus -Brain the first personal computer virus, began infecting 5.2" floppy disk in 1986. As secure list reports, it was the work of two brothers, Basit and Amjad Farooq Alvi , who ran a computer store in Pakistan. -Brain is the industry standard name for a computer virus that was releases in the first from 19 January 1986 and is considered to be the first computer virus for the IBM Personal Computer (IBM PC) and compatibles. - The primary purpose of t...
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Computer Network Arrangement's (by Naseema Shaikh)

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Computer Network Arrangement's What Is Topology -Topology defines the structure of the network of how all the components are interconnected to each other there are two types of topologies Physical Topology and Logical Topology. Types Of Networks - Bus  -Ring -Tree -Star -Mesh -Hybrid *Bus Topology -The bus topology is designed in such a way that all the stations are connected through a single cable known as a backbone cable. -When a node wants to send a message over the stations available in the network receive the message whether it has been addressed or not. -Each node is either connected to the backbone cable by drop cable or directly connected to the backbone cable. *Ring Topology -Ring topology is like a bus topology, but with connected ends. -The node that receives the message from the previous computer will retransmit to the next node. -The node flows in one direction it is unidirectional. -The data flows in a single loop continuously known as an endless loop. -It has no t...
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