1.4.1 – Threats to Computer Systems and Networks
As the number of network connected devices increases, so does the proportion of poorly designed and insecure devices. Many people do not understand the significance […]
OCR GCSE Computer Science
1.3.2 – Wired and Wireless Networks, Protocols and Layers
In the last section we focussed on what networks are, why they are used and covered a broad range of related topics such as how […]
1.3.1 – Networks and Topologies – Part 2 – Performance, Authority and The Cloud
In this section (click to jump): Performance Factors People that look after networks are odd people. I once convinced a student that every network had […]
1.3.1 – Networks and Topologies – Part 1 – Types, Topologies and Hardware
Today, our world is connected in ways which were unimaginable a generation ago. We take for granted the ability to communicate in real time, across […]
1.2.5 – Compression
Compression is all about making things smaller and take up less space. The need to make things take up less space is certainly not unique […]
1.2.4 – Data Storage – Encoding Sound
The final stop on our encoding journey is sound. In this section we learn how sound waves are translated into a digital, binary form and […]
1.2.4 – Data Storage – Encoding Images
Nearly all computer systems from the simplest of smart TVs or a smartwatch to a fully featured PC make heavy use of graphics or images […]
1.2.4 – Data Storage – Encoding Text
In the 1980’s “home computers” first became widely available and affordable from popular brands such as Sinclair, Commodore, Acorn and Atari. This isn’t too different […]
1.2.4 – Data Storage – Numbers
This section of the specification has the potential to be very large as it covers four distinct topics. I’ve split it up into those four […]
1.2.3 – Units
A large amount of the content for this section has been covered in 1.2.2 – Secondary storage. This is because it is essential you understand […]