Tutorial and Example

Deadlock Prevention Algorithm in Operating System  We used these conditions to prevent deadlock: Mutual Exclusion Hold on and Wait No preemption Circular Wait 1.   1. The mutual exclusion is a resource-based concept that prevents more than one process from using the same resource at once.   This is fair, but it causes a deadlock.   There is no way to wait for the resource if we have the possibility of using the same resource for multiple processes at once. However, if the resources are not performing in a mutually exclusive way, then we can prevent the system becoming stuck. Spooling:  Spooling is shorthand for Simultaneous Perimeter Operations Online.   Spooling is used for devices like Printer, Mouse, and Keyboard.   Let's look at the workings of a printer's spooling process: Memory is an associated component of a printer. This memory allows us to store all of the jobs. After collecting all jobs, the printer prints each job in FCFS (First Come First Serve) .   This method wil

 What is Hibernate? Hibernate, an Object-Relational Mapping tool (ORM), reduces the complexity of application development. Hibernate framework that allows you to interact with data stored in databases. It uses specifications from the Java Persistence API, (JPA), and is licensed under the GNU Lesser General Public License. It supports nearly all relational databases. Gavin King is the father of hibernate. Hibernate is available in both Java SE (Standard Edition), and Java EE, Enterprise Edition. Hibernate (Enterprise Application Platform) is an integral part of JBoss EAP. JBoss tools allow for easy implementation and testing code during application development. What is the ORM tool? An Object-Relational Mapping tool is used to simplify the creation, manipulation and access of data. This technique maps the object to the database data. ORM can be used to resolve mismatches such as Granularity It can be further divided into new data fields. A person can be considered an entity, for examp

Computer Graphics Applications Some applications of Computer Graphics are mentioned below Graphical User Interface (GUI) . It's a way to interact with a computer by using the menu, icon, or other visual graphics. Art:  Computer graphics offers a new way to create designs. Numerous artists and designers use Illustrator, Coral Draw, Photoshop, Adobe muse and other applications to create new designs. Entertainment: Computer graphics can be used to create animated movies or games. Computer graphics can be used to create scenes. Computer graphics can also be used to create animations and special effects. Presentations: Computer graphics can be used to create charts, bar diagrams and other images for presentation purposes. The user can easily understand the points with the graphical presentation. Engineering Drawings:  Computer Graphics also allows us to create 3D models, house circuits, and engineering drawings. This is very useful for us. Education and Training: Simulators and com

  The best programming language to learn in the summer for a computer diploma engineer is C++. It is not a very popular choice to learn because it does need to have a compiler that supports it was developed many years ago before most computers were invented. That being said, C++ can still be used in many current day C# and Java based projects. Some of the best programming language to learn in the summer for a computer diploma is Visual Basic for applications. VBA is similar to Java but it is a whole lot easier to work with. Most programs written in VBA require that they are connected to a database. VBA can be used directly or through a browser. The nice thing about VBA is that it is integrated into many programs so that the programmer does not need to know anything about VBA. Instead, they just need to be able to write a program. Another popular programming tool is Visual Studio. This is a free tool that can be used to create Windows programs. Most programs are designed to run on th

  A lot of people who wish to configure the router from PC in packet tracer have to face problems while performing the task. Not everyone can do it without the help of PC automation utilities. Some routers are easy to configure while some need expert knowledge and effort. If you want to configure router from PC in packet tracer then you must be aware of few things. A PC automation utility is needed for performing the task of network configuration. The PC automation software enables the user to perform the task of network configuration from any location by just a single command. It is very important to choose the right utility that can configure the router from PC in packet tracer . Not all utilities can offer the same level of support for the network configuration. Only good utility can offer you the best network configuration. Now a question arises, how does IP packet tracing work? The process is very simple. Whenever someone sends an IP packet, the software will create a log of tha

 Design of JDBC  Java Database Connectivity (JDBC) is an Application Programming Interface (API), from Sun microsystem that is utilized by the Java application to speak with the social information bases from various sellers. JDBC and information base drivers work couple to get to accounting pages and data sets. Design of JDBC characterizes the parts of JDBC, which is utilized for associating with the information base.  Segments of JDBC  Design of JDBC  JDBC has four significant parts that are utilized for the communication with the information base.  JDBC API  JDBC Test Suite  JDBC Driver Manger  JDBC ODBC Bridge Driver  1) JDBC API: JDBC API gives different interfaces and techniques to build up simple association with various data sets.  javax.sql.*;  java.sql.*;  2) JDBC Test suite: JDBC Test suite works with the software engineer to test the different tasks like erasure, updation, inclusion that are being executed by the JDBC Drivers.  3) JDBC Driver supervisor: JDBC Driver admini