Tharshini Ravikumar

Student at PSGR Krishnammal College for Women

File processing

A file processing system is a collection of programs that store and manage files in computer hard-disk. On the other hand, A database management system is collection of programs that enables to create and maintain a database. File processing system has more data redundancy, less data redundancy in dbms.

Wireless LAN and ethernet

A wireless LAN is a wireless computer network that links two or more devices using wireless communication to form a local area network within a limited area such as a home, school, computer laboratory, campus, or office building. Ethernet is the traditional technology for connecting devices in a wired local area network (LAN) or wide area network (WAN), enabling them to communicate with each other

Files in c programming

A collection of data which is stored on a secondary device like a hard disk is known as a file. A file is generally used as real-life applications that contain a large amount of data.

Mobile communications

Mobile communications are defined as communications with mobile vehicles such as land vehicles, airplanes, and vessels. Mobile communications essentially have to rely on wireless (radio) communication technology.

DC generators

A DC generator is an electrical machine which converts mechanical energy into direct current electricity. This energy conversion is based on the principle of production of dynamically induced emf. This article outlines basic construction and working of a DC generator.Dec

Operation of synchronous generator

In a synchronous generator, a DC current is applied to the rotor winding producing a rotor magnetic field. The rotor is then turned by external means producing a rotating magnetic field, which induces a 3-phase voltage within the stator winding. The rotor of a synchronous machine is a large electromagnet.

Transformers

A transformer is a passive electrical device that transfers electrical energy from one electrical circuit to another, or multiple circuits.

Network topologies

A network topology refers to the way in which nodes in a network are connected to one another. ... It is the arrangement with which computer systems or network devices are connected to each other. Topologies may define both physical and logical aspect of the network.

Fundamental computer networks

Computer networking or data communication is a most important part of the information technology. ... To share data and resources between two or more computers is known as networking. There are different types of a computer network such as LAN, MAN, WAN and wireless network.

Network layers and TCP IP

Many networks have a 5 layer architecture that divides up communication responsibilities. The physical layer is responsible for encoding bits onto a transmission medium. ... The network layer is responsible for delivery of information between different machines on the internet. TCP/IP, or the Transmission Control Protocol/Internet Protocol, is a suite of communication protocols used to interconnect network devices on the internet.

Binary search in c using recursion

The binary search algorithm, search the position of the target value in a sorted array. It compares the target value with the middle element of the array. If the element is equal to the target element then the algorithm returns the index of the found element.

Ethernet

Ethernet is described as IEEE 802.3 standard. It uses Carrier Sense Multiple Access with Collision Detection (CSMA/CD) access method and supports speeds up to 100 Gbps. It can use coaxial, twisted pair and fiber optic cables. Ethernet uses frames to with source and destination MAC addresses to deliver data.