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 […]
Unit 1
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 […]
1.2.2 – Secondary Storage
It is possible to have a computer which does not have secondary storage. This comes with one huge disadvantage: when you turn the power off […]
1.2.1 – Primary storage (Memory)
A computer will store lots of information, this includes your photographs, messages, contacts or even the programs and apps we use on a daily basis. […]
1.1.3 – Embedded systems
An embedded system is simply “something with a computer inside it” but is not a general purpose computer such as a desktop PC. The OCR […]
1.1.2 – CPU Performance
A quick browse of any retailer that sells computer components will illustrate that there are hundreds of different CPU’s available. A CPU is not just […]
1.1.1 – Architecture of the CPU
In this section we cover the very low level fundamentals of a computer. By the end you should understand what a computer is, what it […]