1.2 memory

1.2 memory

1. CPU

   • Control Processing Unit

2. RAM

   • Random Access Memory
     • Volatile
     • Stores the user data/ programs/ part of the operating system that is currently in use
     • Memory can be written to or read from

3. Volatile

   • Gets emptied when the power is turned off

4. ROM

   • Read Only Memory
   • Non-volatile
   • Used to store the BIOS/bootstrap loader
     • Bootstrap loader
       • A small program that loads the operating system
   • Memory can only be read from and not written to

5. Firmware

   • Permanent software programmed into ROM

6. Non-Violate

   • Doesn't loose the data when the device is turned off

7. Bios

   • Basic input/outputs system contains programs to load the hardware

8. Disk thrashing

   • When a computer's virtual memory subsystem is in a constant state of paging

9. Flash memory

   • Electrons are forced into a layer between two barriers which hold the charge by using a high electric current

10. virtual memory

    • When RAM is full, a section of the hard drive can be used to store programs and instructions

11. Static RAM

    • Used 5 transistors which are wired together to represent each bit. no need to be refreshed.