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What is the Difference Between Compiling and Debugging?

Debugging:-Computer programmers, like everybody else, are not perfect. This means the programs they write sometimes have small errors, called “bugs,” in them. These bugs can be minor, such as not recognizing user input, or more serious, such as a memory leak that crashes the program. Before releasing their software to the public, programmers “debug” their programs, eliminating as many errors as possible. This debugging process often takes a long time, as fixing some errors may introduce others.

Compiling:-When programmers create software programs, they first write the program in source code, which is written in a specific programming language, such as C or Java. These source code files are saved in a text-based, human-readable format, which can be opened and edited by programmers. However, the source code cannot be run directly by the computer. In order for the code to be understood by the computer’s CPU, it must be compiled into an executable program.

Most software development programs include a compiler, which compiles source code files into machine code. This code, sometimes referred to as object code, can be executed directly by the computer’s processor. Therefore, the resulting application is often referred to as an executable file. Windows executable files have a .EXE file extension, while Mac OS X programs have .APP extension, which is often hidden.

So the conclusion is a compiled program may have errors or bugs but not a successfully debugged program cannot have any.

So for a perfect program you need to debug and compile a program… Read More

Top Reasons Why Your Computer Might Be Running Slow

The internet has become a major factor in today’s generation. Almost everything can now be done with the internet. The World Wide Web allows easy and convenient ways to communicate allowing you to socialize, find a job or new business opportunity, study conveniently from your home, and a lot more. Due to these many benefits a lot of people own computers to they can take advantage of all the above listed activities and more! The demands from your computer system are increasing by the year which results in the need to have a fast computer. If you have owned your system for a while then you might have noticed it slowing down, not to worry as we will go over the causes and fixes of a slow computer right now.

There are circumstances that might create problems in your computer and in return will affect your daily routine, which is a major pain that everyone wants to avoid. One problem that a lot of computer user had experience is slow speed computer performance. There are lots of reasons why a system might be running a lot slower than when you first purchased the PC and listed below are some of the many causes.

Unnecessary Startup Programs

Every computer contains numerous programs which automatically run whenever you start your computer. Some of them are useful while some are not required as soon as you start up your system. Unnecessary programs that continuously run on your system can lead to poor speed and performance of your system. However, you can get rid of those programs by customizing your startup system. All you need to do is to use MSCONFIG and remove all unnecessary programs running at startup.

System Errors

There are times that a system error occurs without you knowing it and your PC will try to fix it on its own. Once this problem occurs you can only wonder what’s wrong with your computer. To avoid this trouble, it is highly recommended to always do a regular maintenance to your drives. By using the built in Check Disk tool on your system you will be able to determine if your computer has a system error, even if it was not presented to you. Check Disk will scan you drives and fix any threats or problems.

Unwanted Files or Junk Files

This is another problem that can cause your system to run a lot slower than when you initially got it. Keeping some files that do not have any value to you anymore will only waste your hard drive space. So, it is best to check all your folders for useless files and delete them to free up some computer space. This new empty space will allow you to access the files you need in a quicker and more responsive manner.


There are different types of malicious programs that can affect your PC like viral infections, different types of spyware, Trojans, worms, etc. These programs can slow down your computer speed … Read More

Computer Careers And Jobs: Building A Network Of Contacts

Almost all computer schools and colleges have some sort of job placement assistance (and you should ask about this before signing up!). The people who work in these departments work very hard to get your computer career started and get you into your first job in the computer field, but you shouldn’t leave it all up to them. You need to know how to build two kinds of networks to get ahead in IT – the physical kind that carries packets, and the personal kind that can get you hired and get you ahead.

When it comes to getting that first computer job, you have to show initiative. Don’t just send a pile of resumes out and expect the phone to ring off the hook. If you’re attending a computer training school, you have two great resources to draw on in your job search. First, schedule an interview with someone in the job placement assistance department. Ask them what you can do to help them get your computer career started. Showing initiative will also help you stand out from the crowd, and there’s nothing wrong with that.

Your second resource is a group of resources, actually – your instructors. Odds are that your teachers know people in IT that can help get you started. Even if the people they know can’t hire you today, they’re still contacts. And getting your computer career started is a contact sport – the more people you contact, the better you do!

I know how hard it can be to get a computer career started, and I also know how lucrative such a career can be. Get out there and meet people, get involved with your school’s job placement department, and get started!… Read More

Is Cloud Computing Here to Stay?

CEOs, IT managers, and business owners alike are all rushing to jump head-first into cloud computing. In fact, the shift to cloud-based systems has been so swift that some are starting to wonder whether it’s actually a revolutionary way of managing IT, or just a fad that’s expected.

Although there certainly is a danger in following the crowd to sudden conclusions, there are hundreds of reasons to think that cloud-based systems are here to stay – and that you should be investigating it if you haven’t already made the change. That’s because, by freeing your company up from the need to continually buy new hardware and software, cloud computing makes your business more profitable and efficient at the same time.

Consider these three things you get from making the switch to a cloud computing plan:

Systems are cheaper. Like managed services agreements, cloud-based systems allow you to trade big, unpredictable hardware and software expenses for a regular monthly invoice that doesn’t change over time. As wonderful as that consistency is, however, it also brings huge savings. That’s because cloud computing is, on average, more than 50% less expensive than keeping traditional hardware and software is.

Safer. One thing business owners and executives have trouble understanding about cloud computing is how their company’s data can actually be more secure when it’s outside their own office or facility. To see why, they have to understand that a state-of-the-art cloud computing facility has trained technicians on staff 24/7/365, security personnel on the premises, backup power and industrial-grade surge protection, along with continuous save points to ensure the data is never lost. What’s more, your data will be transmitted securely back and forth. Put all of those elements together, and it’s much, much safer than it would be in most offices.

More convenient. While businesses typically make the switch to cloud computing based on cost savings, you shouldn’t overlook the gains in convenience and productivity that come to you, as well. By moving your applications and data into the shared space, you gain the ability to have your employees communicate with each other (and work on the same files) in real time. That means fewer e-mails, phone calls, and long meetings. In other words, the cloud saves you a lot of time and money, even if you didn’t expect it to. Best of all, switching to cloud computing can be quick and painless!… Read More

Effective Way of Teaching Bioinformatics to Undergraduates

Bioinformatics is a new and emerging field that utilizes computer technology to manage and analyze biological information. The use of bioinformatics is a shift from the traditional research methods where laboratories were used. Bioinformatics uses computational approaches and skills to solve biological questions (Neumann 2006). The bioinformatics approach is mainly used in studying molecular and cell biology. The use of bioinformatics in the contemporary classrooms is inevitable, thus the teachers need to include this approach in biology classes. There are several effective methods that can be used to teach bioinformatics to undergraduates as will be discussed below.

The first method proposed by (Parke 2013) is the use of high performance computing (HPC) which involves the use of high performance or fast computers to solve scientific or biological problems. An example of a High Performance Computing (HPC) system is the XSEDE that is used for computing and data sharing. HPC is important in teaching bioinformatics because it increases the capacity of collecting Big Data and the data needs to be analyzed accurately and fast. Bioinformatics involves the analysis of large amounts of data that cannot be accomplished with ordinary computing.

In identifying the most appropriate bioinformatics teaching strategy, it is important to know the level of knowledge of the students. Introducing bioinformatics to students requires the use of customized tools and databases that are taught by teacher assistants in a real-time bioinformatics lab (Neumann 2006). For more advanced undergraduate students, more complex tools and databases such as Student Workbench (, which is a web-based tool used to analyze molecular data, can be utilized.

Students, just like scientists and researchers, are users of bioinformatics. The users not only need to be introduced to bioinformatics but also need continuous training to keep them updated with the evolving technology. (Schneider 2010) proposes the use of a comprehensive bioinformatics training that satisfies the range of student interests and learning objectives (2). The training proposed by Schneider et al. is valuable because it integrates the challenges in training such as differences in trainee backgrounds and lack of materials, and provides the necessary solutions to these challenges. (Wood and Gebhardt 2013) propose a different type of training: the European Learning Laboratory is for Life Sciences (ELLS) LearningLAB which enables the exchange of new information locally and internationally, which in turn helps students to access real-life biological data and get exposed to contemporary research methods (4).

Form and Lewitter proposed the use of inquiry-based learning in teaching bioinformatics that involve solving real-world problems with modern skills (1). Inquiry based learning involves the use of questions and scenarios instead of presenting facts to the students, this helps the students learn the subject in their own way. The authors propose rules of teaching bioinformatics that include empowering students, addressing different learning styles and linking activities to pre-existing science curricula.

Students prefer computer based learning compared to traditional learning and they find learning bioinformatics more interesting when working in pairs or groups (Machluf 2016). Even though the students find it more … Read More