Chapter 39 Dedicated Computer Systems
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...
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David Briffa
Aug 7, 20213 min read
Chapter 40 Verification and Validation
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...
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David Briffa
Aug 7, 20215 min read
Chapter 41 Validation Checks
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...
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David Briffa
Aug 7, 20216 min read
Chapter 42 Systems Analysis
Building useful programs to solve complex problems can be challenging. Many people with different skills team up when it is time to get...
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David Briffa
Aug 7, 20213 min read
Chapter 43 Software Licensing
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...
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David Briffa
Aug 7, 20216 min read
Chapter 44 Cutting Edge Technologies
The term "cutting-edge" is often used to describe disruptive technologies as well as the latest technological advancements. In this post...
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Erika Camilleri
Aug 7, 20213 min read
Chapter 45 Sampling Techniques (Digitisation)
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...
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David Briffa
Aug 7, 20213 min read
Chapter 47 Testing
We briefly touched on testing in Chapter 42 when we talked about Systems Analysis. If you covered this topic then you might remember that...
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David Briffa
Aug 7, 20213 min read
Chapter 48 Documentation
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...
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David Briffa
Aug 7, 20214 min read
Chapter 49 Language Translators
This post is tightly linked to Chapter 28 and Chapter 31. We keep enforcing that computers only understand binary or machine code....
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Erika Camilleri
Aug 6, 20213 min read
Chapter 29 Primary Memory
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...
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Erika Camilleri
Aug 6, 20213 min read
Chapter 28 Machine Code and Assembly Language
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...
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Erika Camilleri
Aug 6, 20213 min read
Chapter 27 Microcontrollers and SoC
You probably know that computers are designed and built in various shapes and sizes. Micro technologies like microprocessors and NRAMs...
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Erika Camilleri
Aug 4, 20215 min read
Chapter 26 Taking a Good Look at the Processor
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,...
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Erika Camilleri
Aug 4, 20213 min read
Chapter 25 Computer Architecture
Computer architecture is the practice of designing and constructing computers. The design is quite abstract and it describes how...
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Erika Camilleri
Aug 4, 20213 min read
Chapter 24 Multimedia
Technology has transformed the way we consume complex data such as audio and video. Most modern systems present information through more...
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Erika Camilleri
Aug 4, 20216 min read
Chapter 23 Data Security and Privacy
Data security refers to the protection of data from unauthorised access and data corruption throughout its lifecycle. Glossary Why is...
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Erika Camilleri
Aug 4, 20212 min read
Chapter 22 Effects of Computer-Based Systems on Individuals, Organisations and Society
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...
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Erika Camilleri
Jul 26, 20212 min read
Chapter 20 Alphanumeric Coding Systems
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...
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Erika Camilleri
Jul 20, 20214 min read
Chapter 19 Negative Decimal Numbers in Binary
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...
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