system 1.1

system 1.1

1. purpose of the processor

   • "the brains of a computer system"
   • carries out instructions (executes them)
   • Processors have a clock speed measured in hertz
     • Number of cycles per second
       • every Hertz (Hz) is processed and executes 1 billion instructions per second

2. Cores

   • each processor has a core in which instructions and executed
   • multi-core
     • dual core
     • quad core
     • 8 core
   • each core executes instructions independently

3. Cache size

   • very fast and usually a very small amount of memory on the processor chip
   • it acts as an intermediary between the processor and the main memory
   • As programs are executing- the cche holds commonly used instructions

4. embedded systems

   • a computer system that is made up of both hardware and soft ware
   • usually for very specialised tasks
   • doesn't usually contain and operating system