Savita Savita

Hii there!! I'm an enthusiastic fresher from st.joseph's college for women (A). Keen to protect our environment, an active member of waste management club

Student at St.joseph's college for women (A), Vishakhapatnam

Studied at Kendriya Vidyalaya Karwar

Skilled in love to play basket ball, basket ball

Certified in Certificate of excellence for 2017, 2018 from waste management club.

File handling in python( Class 11th)

Python has several built-in modules and functions for handling files. These functions are spread out over several modules such as os, os.path, shutil, and pathlib, to name a few. This article gathers in one place many of the functions you need to know in order to perform the most common operations on files in Python. 1.file opening 2closing a file 3.reading a file 4.using the with statement 5.writing a file 7.count spaces, tabs and new lines in a file

Solutions( CLASS 12TH)

Solutions are homogeneous mixtures of two or more chemically non reacting substances whose composition can be varied within curtain limits. This file includes 1types of solution 2.Henry's law 3.ideal solution 4.non ideal solution 5.Azeotropes 6.colligative properties and its types 7.elevation in boiling point 8. Depression of freezing point

Conditional statements , iteration and string manipulation in python (11th class)

This file includes conditional statements, iteration and string manipulation in python. Conditionl statements includes 1.simple if 2.if else statement 3.else statement Iteration 1.whike loop 2.for 3.range String functions 1.indexing 2.slicing

Electrochemistry( CLASS 12TH)

This file includes oxidation and reduction reactions,Electrochemical cell,salt bridge,cell potential,conductivity cell, batteries, corrosion


Chemical kinetics is the branch of chemistry that deals with the study of reaction rates and thier mechanisms. This file includes rate of reaction,factors affecting rate of reaction,order of reaction,probability factor

Solid states( CLASS 12TH)

Solid is a state of matter in which the constituting particles are arranged very closely. The constituent particles can be atoms, molecules ions. This file includes of solids 2.types of solids 3.crystal lattice 4.unit cell 5.the seven crystal systems 6.types of unit cells 7.packing efficiency 8.impurity defects theory

Quadratic equations( CLASS 10TH)

In, mathematics, a quadratic equation is a polynomial equation of the second degree. This file includes the following 1.Quadratic and roots to solve a quadratics equation? 3.methods to solve quadratic equation.

Halogen compounds

Organic halogen compounds are a large class of natural and synthetic chemicals that contain one or more halogens (fluorine, chlorine, bromine, or iodine) combined with carbon and other elements. The simplest organochlorine compound is chloromethane, also called methyl chloride(CH3Cl) This file includes types of nucleophilic substitution reaction and their mechanisms

Functions in python( Class 11th)

A function is a block of organized, reusable code that is used to perform a single, related action. Functions provide better modularity for your application and a high degree of code reusing. As you already know, Python gives you many built-in functions like print(), etc. but you can also create your own functions This file includes defining a function,local and global variables,default argument value,keyword arguments,docstrings, higher order function,map function

Consumer Awareness

A person who has indicated his or her willingness to obtain goods and/or services from a supplier with the intention of paying for them. Someone who has purchased goods and/or services for personal consumption. This document contains following topics 1.Rights of Consumer 2. Responsibility of consumer 3. How consumers are exploited? 4.Factors Causing exploitation of consumers 5.Consumer Protection 6.Consumer Protection Act 1986 7.Publicity measures 8.Training Programmes


Deadlock is a situation where a set of processes are blocked because each process is holding a resource and waiting for another resource acquired by some other process.Consider an example when two trains are coming toward each other on same track and there is only one track, none of the trains can move once they are in front of each other. Similar situation occurs in operating systems when there are two or more processes hold some resources and wait for resources held by other(s). DEADLOCK CHARACTERIZATION: In a deadlock, processes never finish executing, and system resources are tied up, preventing other jobs from starting. Before we discuss the various methods for dealing with the deadlock problem,we look more closely at features that characterize deadlocks. 1. Mutual Exclusion 2. Hold and Wait 3. No preemption 4. Circular Wait METHODS FOR HANDLING DEADLOCKS: 1. Deadlock Ignorance 2. Deadlock avoidance 3. Deadlock detection and recovery


An Operating System (OS) is an interface between computer user and computer hardware and controls the execution of all kinds of programs. Operating System (OS) is one of the core software programs that runs on the hardware and makes it usable for the user to interact with the hardware so that they can send commands (input) and receive results (output). It provides a consistent environment for other software to execute commands. OBJECTIVES OF OPERATING SYSTEM 1. Interface between the user and the hardware 2. Coordinate hardware components 3. Provide environment for software to function 4. Provide structure for data management 5. Monitor system health and functionality FUNCTIONS OF OPERATING SYSTEMS: Following are some of important functions of an operating System. 1. Memory Management 2. Processor Management 3. Device Management 4. File Management 5. Security 6. Control over system performance 7. Job accounting 8. Error detecting aids 9. Coordination between other software and users COMPUTER-SYSTEM ARCHITECTURE: A computer system can be organized in a number of different ways, which we can categorize roughly according to the number of general-purpose processors used 1. Single-Processor Systems 2. Multiprocessor Systems 3. Clustered Systems OPERATING SYSTEM STRUCTURE: The design of operating system architecture traditionally follows the separation of concerns principle. This principle suggests structuring the operating system into relatively independent parts that provide simple individual features, thus keeping the complexity of the design manageable. A. Simple Structure B. Layered Approach C. Micro-kernels D. Modules