The general PC was revolutionary in the 80s. Since then we managed to cram so much more power into the tiniest of spaces. The AI keeps...

We can say that both verification and validation have to do with input. When we type in data in a file or a database, we want to use...

How can we be sure that data in a computer system is correct? What checks can we build in to prevent bad data? Let's learn about...

Building useful programs to solve complex problems can be challenging. Many people with different skills team up when it is time to get...

Software is built with the intention of being used by many people. End users tend to use the software as is. Engineers use software and...

The term "cutting-edge" is often used to describe disruptive technologies as well as the latest technological advancements. In this post...

We know by now that computers work with 1s and 0s, a digital language, but the world around us is not digital. The music coming from a...

We briefly touched on testing in Chapter 42 when we talked about Systems Analysis. If you covered this topic then you might remember that...

We did the SDLC in Chapter 42. You might have remembered me mentioning that each stage comes with some sort of deliverable, which is also...

This post is tightly linked to Chapter 28 and Chapter 31. We keep enforcing that computers only understand binary or machine code....

Primary memory is a key component of a computer system that enables it to function. Primary is mainly made up of RAM and ROM. Each of...

In this last part of our CPU section, we explore how assembly language is used to make it easier to program, instead of using machine...

You probably know that computers are designed and built in various shapes and sizes. Micro technologies like microprocessors and NRAMs...

The CPU is a core part the computer architecture. In this chapter, we will go into a bit more detail on the components within the CPU,...

Computer architecture is the practice of designing and constructing computers. The design is quite abstract and it describes how...

Technology has transformed the way we consume complex data such as audio and video. Most modern systems present information through more...

Data security refers to the protection of data from unauthorised access and data corruption throughout its lifecycle. Glossary Why is...

We just learnt that so many areas can be impacted by the use of computer systems, most part is for the better we hope. However like...

All the information that we want in our computer needs to be represented in machine code. This is a daunting task but at least we already...

Having a way to represent positive decimal integers in machine code is a good start, but not nearly enough to fulfil our needs. There is...