Hardware

Hardware

1. CPU

   • Cache
     • High Speed Memory
   • Clock Speed
     • Measured -1000 million in GH2 per second
   • ALU
     • Arithmetic Logic Unit
       • Does the maths
   • Immediate Access Store
     • Registers
   • Control Unit
     • Recives instructions from RAM and directs
   • Fetch, Decode, Execute cycle
     • Fetch
       • Instrucutions/data from RAM
     • Decode
       • Works out what to do
     • Execute
       • Process it
   • Number of Cores
     • Dual/Quad/ Out
     • How fast it is

2. Uses with special needs

   • Braille Keyboard

3. Binary Logic

   • 0 and 1
   • Logic Gates
     • AND, OR, NOT

4. Memory

   • Cashe
   • RAM
     • Volatial
   • ROM
     • Boot Sequence

5. Secondary Storage

   • Solid State
   • Optical
   • Magnetic