1.2 memory

1.2 memory

1. embedded systems

   • an embedded system means it has been embedded into another system
     • the purpose for a embedded system is to provide specific, pre defined instructions

2. registers

   • it is a component for holding short term memory
     • what is the name and purpose of one register in the CPU?
       • memory address register used to store the address of the next instuction

3. CPU

   • to fetch, decode and execute instructions.

4. cache

   • frequently used instructions and data.
     • The size of the cache normally refers actually to the size of the data store, where the memory elements are actually stored

5. rom is not volitile

   • ram is volitile

6. two things that are stored in RAM are memory data and programs

7. RAM is read access memory

   • ROM is reads only memory
   • types of RAM
     • DRAM,SRAM