UKPSC Mains 2024 Notes
Get topicwise printed notes for UKPSC Mains Exam 2024 developed by experienced faculty of PSCNOTES.UKPCS Prelims and Mains Notes-UKPSC Test Series
Biometric devices measure biological elements (like human features) in order to perform functions, such as logging health/fitness data and authenticating users. There are many different uses for the technology and a variety of methods for its implementation. Types of biometric data include visual, audio, spatial and behavioral. According to these characteristics, the sub-divided groups … Read more Role of biometric devices in security
Communication networks are a part of our critical information infrastructure. Communication networks refer to an interconnection of communicating entitiessuch as computers, laptops, mobiles, telephones etc. via which provides the basis for information exchange for all other sectors including voice, data, video, and Internet connectivity. Communication network should not be confused with the computer networkssuch as LAN, WAN etc. because … Read more Challenges to Internal security through communication networks
The Greenhouse Effect The greenhouse effect is a natural phenomenon that insulates the Earth . Incoming solar radiations are absorbed and reemitted back from the Earth’s surface as infrared energy, greenhouse gases (GHGs) in the atmosphere prevent some of this heat from escaping into space, instead reflecting the energy back to further warm the surface. Human … Read more Global Environmental Issues like Green House Effect, Green House Gases and their mitigation.
Remote sensing refers to the measurement or acquisition of information about an object or phenomena from a distance without physical contact by using devices or sensors mounted on some platform. Remote sensors collect data by detecting the energy that is reflected from Earth. These sensors can be on satellites or mounted on aircraft. Remote sensors can … Read more Indian Remote Sensing (IRS) satellites system.
INTERNET The Internet is a global network of billions of computers and other electronic devices. With the Internet, it’s possible to access almost any information, communicate with anyone else in the world, and do much more. It’s important to realize that the Internet is a global network of physical cables, which can include copper telephone wires, TV cables, … Read more Definition of Internet, search tools, web browsers, e-mail and search engines. IT applications: E-cards, E- shopping, E-commerce.
Software is a set of programs, which is designed to perform a well-defined function. A program is a sequence of instructions written to solve a particular problem. There are two types of software − System Software Application Software System Software The system software is a collection of programs designed to operate, control, and extend the … Read more Software and application of PC software packages: Software definition, Type of software and its Knowledge of Word processing, Spreadsheets and Power point presentation software packages
Elements of a Communication System Elements of a communication system The above figure depicts the elementsof a communication system. There are three essential parts of any communication system, the transmitter, transmission channel, and receiver. Each parts plays a particular role in signal transmission, as follows: The transmitter processes the input signal to produce a suitable … Read more Basic element of Communication systems, data transmission mode, transmission media, network topologies, network types, communication protocols, network security mechanism.
Data, Data Processing and Database management System Data processing and data management are critical components of business organizations. DATA PROCESSING Data processing refers to the process of performing specific operations on a set of data or a database. A database is an organized collection of facts and information, such as records on employees, inventory, customers, … Read more Data, Data processing, business data processing, data storage, file management system and data base management systems.
Computer Classification: By Size and Power Computers differ based on their data processing abilities. They are classified according to purpose, data handling and functionality. According to functionality, computers are classified as: Analog Computer: A computer that represents numbers by some continuously variable physical quantity, whose variations mimic the properties of some system being modeled. Personal computer: A personal computeris a computer small and low cost. The … Read more Classifications, generations, applications and limitations of digital computers
Biotechnology through Genetic engineering has made food crops more resistant to disease, but the mere act of modification of the naturally selected food crops may actually disturb the delicate balance of biodiversity which exists in nature causing a disturbance to the natural balance. The production of GMOs has negative impacts on the natural ecosystem which … Read more Ethical, social, legal and IPR (intellectual property rights) issues related to biotechnological development.