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Binary Binary, what is binary? Binary data is in any computer represented using binary notation which uses only two digits: 0 and 1. The use of binary notation works well in every part of a computer, which is why binary numbers represent all data within a computer. Here are a few binary notations represented in different hardware devices. RAM – Binary notation is represented in the transistors (electrical components with microprocessors). HDD -  Binary notation is represented in the reflective surface of the disk to a laser disk as north (1) and south (0). DVD – Binary notation is represented in the reflective surface of the disk to a laser as reflective (1) or not reflective  (0). How does binary work? It’s simple, the binary notation increases by 1,2,4,8,16,32, 64, (it simply doubles). So for 4, you would use 0000100 Word and word length A word is the term used to de-script the number of bits, for example 32 bits. A word is basically a number of bits. ASCII...

Storage devices Storage devices are used to keep data and documents saved from RAM, so when the computer is switched off they are kept safe for another time. They are also used to keep programs for loading into RAM when they start so the CPU can run them. HDD (hard disk drives)– These are magnetic media, as they can use tiny magnetic spots on a disk surface to store data. The disk spins round using circular tracks to organise the magnetic spots with a read/write head moving over the disk surface between tracks to use them. SSD (solid state drives) – These store data in flash memory microchips which contain transistors that retain their state (on or off) and store the data, even when there’s no electrical power supply. Although currently HDD are genrally cheaper and can have larger capacities, this is beginning to change and SSD is becoming increasingly popular and more common. They are same physical size as a HDD with the same connections and functions, but they don’t have any moving p...