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introduction of operating system

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User Operating System Interface. Types of System Calls. Methods for Handling Deadlocks. Sleep and Wakeup Problem. Keep the CPU as busy as possible. No of processes that complete their execution per time unit. Amount of time to execute a particular process. Amount of time a process has been waiting in the ready queue. Amount of time it takes from when a request. Scheduling Algorithm Optimization Criteria. First in first out. Fixed priority pre-emptive scheduling. First In First Out.

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Graph Theory - Definitions and Examples

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Eulerian and Hamiltonian Graphs. Cut Edge,Cut Set,Cut Vertex. Graph Planarity ,Coloring. Informally, a graph is a diagram consisting of points, called vertices, joined together by lines, called edges; each edge joins exactly two vertices. A graph G is a triple consisting of a vertex set of V( G. An edge set E(G), and a relation that associates with each edge two vertices (not necessarily distinct) called its endpoints. Formally, a graph G is an ordered pair of dsjoint sets (V, E), where E Í. N(v) of the ...

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c | Basic , medium ,expert programs example in c,java,c/++

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Frequently Asked C programs in interview. C code to Encrypt Message using PlayFair (Monarchy) Cipher. C code to Encrypt & Decrypt Message using Transposition Cipher. C code to Encrypt & Decrypt Message using Vernam Cipher. C code to Encrypt & Decrypt Message using Substitution Cipher. C code to implement RSA Algorithm(Encryption and Decryption). C Program to implement Huffman algorithm. C Program to implement An activity selection problem. C Program to implement Bellman-ford Algorithm. Implementation of ...

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java | Basic , medium ,expert programs example in c,java,c/++

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Implementation of MD5 Algorithm in Java. Implementation of RSA Algorithm(Encryption and Decryption) in Java. How To Check The Equality Of Two Arrays In Java? Write a program to remove duplicates from sorted array. How to get distinct elements from an array by avoiding duplicate elements? Create list using an Array in java. How to delete many elements from a linkedList? How to update a linked list? How to get elements of a LinkedList? How to execute binary search on a vector? How to implement stack? How t...

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SQLite Introduction

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The Lite in SQLite does not refer to its capabilities. Rather, SQLite is lightweight when it comes to setup complexity, administrative overhead, and resource usage. SQLite is defined by the following features:. SQLite does not require a separate server process or system to operate. The SQLite library accesses its storage files directly. No server means no setup. Creating an SQLite database instance is as easy as opening a file. Small Runtime Footprint :. SQLite is used in. Solaris 10 and Mac OS operating...

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C-Introduction

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C Looping and Control. User Defined Function Types. Call by Value and Call by Reference. C is one of the most widely used programming language of all times. It is a general purpose,block-structured,procedural, case-sensitive and high level programming language. Who is the developer? C is developed by Dennis Richie and his partner Ken Thompson at the Bell Telephone Laboratories in span of 1969 to 1973. It was named C because it evolved from earlier languages Basic Combined Programming Language(BCPL) and B.

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Microprocessor Advantages & Disadvantages

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Microprocessor Advantages and Disadvantages. Microprocessor is defined as a silicon chip embedded with a Central Processing Unit or CPU. It is also referred to as a computer's logic chip, micro chip, and processor. Advantages of Microprocessors is that these are general purpose electronic processing devices which can be programmed to execute a number of tasks. These are used in personal computers as well as a number of other embedded products. Scanftree is optimized for learning, testing. Examples mi...

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Applications of Microprocessors

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It is very useful in the field of instrumentation. Frequency counters, function generators, frequency synthesizers, spectrum analyses and many other instruments are available, when microprocessors are used as controller. It is also used in medical instrumentation. Office Automation and Publication:. Microprocessor based micro computer with software packages has changed the office environment. Microprocessors based systems are being used for word processing, spread sheet operations, storage etc. T...The u...

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Overview of Database Management System | Scanftree

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2 Phase Locking Protocol. Is a collection of related data organised in a way that data can be easily accessed, managed and updated. Any piece of information can be a data, for example name of your school. Database is actualy a place where related piece of information is stored and various operations can be performed on it. Components of Database System. The database system can be divided into four components. Users may be of various type such as DB administrator, System developer and End users. Scanftree...

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SQL | Structure Query Language | Commands | Types

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Commit, Rollback, savepoint. Structure Query Language(SQL) is a programming language used for storing and managing data in RDBMS. SQL was the first commercial language introduced for E.F Codd's Relational. Model Today almost all RDBMS(MySql, Oracle, Infomix, Sybase, MS Access) uses SQL. As the standard database language. SQL is used to perform all type of data operations in RDBMS. SQL defines following data languages to manipulate data of RDBMS. DDL : Data Definition Language. Delete data from table.