Multiprocessing is the use, within the same system, of several CPUs that share resources among them. There are many kinds of multiprocessing systems and they vary according to different aspects. Their type will first depend on the location of the CPUs (i.e., whether they are on the same die, chip or on the same board).
It is well known that, ever since they first appeared in the 80s, PCs have CPUs with Intel architecture. The fact that there are many systems based on PCs is also common knowledge. However, the general public may be unaware of the features of embedded systems around us (such as cell phones, tablets, vehicles, appliances…).
We are approaching the end of Q1 in 2018 and for various reasons across the world, I believe that in the coming days many of our readers will probably be taking a short break. Whether it’s because of traditional festive holidays that are coming up in many parts of the world or because of the change in the seasons. So, this is a great moment to pause and think how 2018 has progressed so far.
Software development involves far more than the mere production of code. It goes beyond writing instructions and knowing specific syntax and grammar rules. So, we may well ask ourselves: what is software and how is it developed? One of the best examinations of this subject was done by Peter Naur – creator of the BNF notation and winner of a Turing award – in his essential article “Programming as Theory Building”. Here’s a summary of his idea.
The concept of code coverage affects any existing software application, from PC programs, mobile apps, the latest application for your SmartTV or router firmware. While it’s not a concept that depends on whether the software is connected to the Internet, it does affect us all. Let’s explain what it is and how to deal with it.