Representing Sound – Data – GCSE CS
Computers represent audio using digital signals, which are sequences of binary digits (0s and 1s)… Read More »Representing Sound – Data – GCSE CS
Data and information
Representing Images – Data – GCSE CS
Images are an important part of modern digital media, and they are used in a… Read More »Representing Images – Data – GCSE CS
Negative numbers with Two’s Complement
Two’s complement is a method of representing negative numbers in a binary system, which is… Read More »Negative numbers with Two’s Complement
Data transmission methods – Simplex, Duplex, Serial, Parallel
This post will explain the methods of data transmission across a network including Serial and Parallel, and Simplex-Duplex transmission.
Data Storage – How do computers store our data?
A post explaining how our computers use binary to represent and store information
Compression Algorithms – RLE, Dictionary coding and Huffman coding
An explanation of lossy compression algorithms, including Run Length, Dictionary , and Huffman encoding methods discussed in the GCSE CS syllabus
The Hexadecimal Number System and how to convert
A post explaining the hexadecimal number system and how to convert between denary, binary and hexadecimal
The Binary Number System
No matter how complex the system is, the basic building block of all computers is… Read More »The Binary Number System
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