INTRODUCTION

The paper explores the role of Pass word, Anti virus and data  encryption in computer security.  It has been discussed that passwords is known to be ancient. Sentries would challenge those wishing to enter an area or approaching it to supply a password or watchword. Sentries would only allow a person or group to pass if they knew the password. In modern times, user names and passwords are commonly used by people during a log in process that controls access to protected computer operating systems, mobile phones, cable TV decoders, automated teller machines (ATMs), etc. Data encryption refers to mathematical calculations and algorithmic schemes that transform plaintext into cyphertext, a form that is non-readable to unauthorized parties. The recipient of an encrypted message uses a key which triggers the algorithm mechanism to decrypt the data, transforming it to the original plaintext version.  Read more...

Computer, being the prime source of connectivity, has made people dependent on it for every major or small share of their work. Technological advancement has enabled humans with a ready-made and speedy solution for almost everything. India has constantly been contributing a lot in the technological advancement by producing its talented software engineers to the whole world. Why software engineering has turned into one of the most preferred professions in IT these days is because in this era of technology, it has to offer so much in terms of scope and employment. Also the ‘how’ and ‘why’ of machines have created a buzz among students, resulting in making them opt for a software course to make their career bright and prosperous. And we can not deny the fact that from computers to mobiles to I pods, software is required for the application of everything.

We can say that the term software engineering is related to tools, knowledge and implementation of software and software engineers are supposed to take on functions like designing of software, computer programming, or user interface designing. Once the system had been designed fully, the engineers then test, debug and fulfill the tasks of system maintenance. The students who aim to pursue a software course can either take Bachelors in Computer Application or can have specialization of software engineering in their Post-Graduation.  Read more...

Computers often break down at the worst of all times. These problems can be averted, or at least minimized with preventive maintenance. Several methods of keeping computer hardware in good working order deal with the external components of the computer, such as the keyboard and monitor. For example, it is important to keep the processor away from excess heat and moisture. There are also computer hardware preventive maintenance software programs that can help with the upkeep of other internal aspects of a computer.  

While it is rare to find a CMMS that works on all of a computer’s hardware, many different programs can be utilized simultaneously. Some computers have periodic automatic updates available that can be downloaded and used to improve the computer’s performance. Other software programs, known as disk defragmenters, manage hard drive space so that software programs take less time to access. Programs known as hardware diagnostic utilities can check the computer’s hardware components and alert the user about any potential failures. Since some new hardware will not always work on all computers and could cause existing hardware to malfunction, it is important to have a CMMS program to ensure that the new hardware is compatible with existing hardware.    Read more...

The term “software” is not a recently conceived of word. In his 1935 essay, ‘Computable Numbers with an Application to the Entscheidungs Problem,’ Alan Turing first proposed and provided the foundation for most modern software. In 1958, the first use of the term software was used by John W. Tukey in an article in American Mathematical Monthly.

Today, the the term ‘computer software’ means written programs, rules, or codes, along with related documentation regarding the operation of a computer system that is stored in read/write memory. The “soft” part of software refers to the many products and technologies developed using different methods such as programming languages and scripting languages. The term ‘software’ is broader and can include different types of devices such as the operation systems of modern consumer devices such as automobiles, televisions, toasters, etc.

Computer software is the job descriptions of what a computer can perform. It cannot be physically touched. For instance, most computers come with software already installed. Software is also available on CD where the user inserts the disk into the hard drive and follows the installation instructions. As well, downloadable software is available on internet sites such as Microsoft. Computer software is basically a series of instructions that tells a computer how to do a particular job. For example, Microsoft Word is an example of computer software. As well, web page technologies such as HTML, PHP, ASP.NET, and XML are examples of computer software.  Read more...

We are living in a digital age where everyone seems to be equipped with the most advanced gadgets. Various terminologies have come up which were totally unheard of a decade or two ago. Things like Xbox, PSP3, Play station, and the wonderful mobiles like I-phones have completely captured the imagination of the young generation as well as the older one.

Among these innovations the world of computer games is a most fascinating one. In a few decades computer games have caught the fancy of all ages and types of people in all parts of the world. And now computer games have become a big business too. Even though you are all interested in them your knowledge about them is not likely to be adequate. This article attempts to solve that inadequacy.

The only problem that is posed by these fascinating products is the price factor which is often very high. Though a large number of people want to buy the most fascinating games the cost dissuades them from doing it. A good way to resolve this problem of high price is to buy them second hand. That would comfort you if you were wondering how to buy them. It will also answer your questions if you were wondering how used computer games can be bought.  Read more...