[Term of the Day]: Debugging

[Term of the Day]: Debugging

Term of the Day 



Definition — What is a Debugging?

The term Debugging refers to a process in software development whereby computer programmers comb through code looking for “bugs” — the source of errors, flaws, or security holes in the internal program instructions. The term debugging seems a strange one to use to describe the fixing of errors in a program.

Do you know why errors in computers or devices are called as a bug? The answer harks back to the 1940s when renowned computer programmer Grace Hopper recorded the first-ever instance of a computer bug. The Harvard Mark II computer was an early electronic computer and used electronic relays to make calculations. When Grace ran her program, she consistently got incorrect results and had to try to identify the problem. Through further investigation it was discovered that a moth had flown into one of the electronic relays, short-circuiting the computer and producing incorrect results. Thus, the first-ever recorded instance of a computer bug was found. Debugging, in the world of computer programming, is the multistep process of detecting and removing existing ‘bugs’. During the Software development process testing, updating, troubleshooting, and maintenance come. Typically, the software contains errors and bugs, which are usually removed. In a software code that can cause it unexpectedly or by accident. Sometimes debugging becomes more difficult when different modules are tightly coupled and any changes in one module can cause more bugs to appear in another, sometimes compared to coding one program It takes longer to debug in.

Hardware development also goes through debugging to ensure compatibility with current hardware standards and interoperability between components that adhere to the same protocols. Hardware is debugged before it reaches the market and does not undergo real-world testing, as this would be too expensive and problematic for a number of fairly obvious reasons. Instead, most hardware manufacturers provide an online interface where users can get technical support or report problems with hardware. In many cases, these problems turn out to be user errors, but the process also serves to reveal bugs that were not caught in the initial debugging phase. Debuggers can go back to the instructions encoded in the controlling chips and make changes to rid the hardware of the bugs. The manufacturer can then provide a firmware upgrade that users can download online to update their hardware.

While in-house debugging can certainly rid software and hardware of many bugs, nothing replaces real-world testing. It is virtually impossible for an author or manufacturer to replicate every conceivable condition and system under which the hardware or software will be used.