Please enable JavaScript.

Coggle requires JavaScript to display documents.

Computer, Systems - Coggle Diagram

- - - - Registers
        
        Accumulator
        
        Register where current results of the ALU are stored
        
        MDR
        
        Holds the data inside the address specified by MAR
        
        MAR
        
        Holds the address of the register currently being accessed
        
        PC
        
        Hols the current number of intsructions executed
      - Buses
        
        Control Bus
        
        Bidirectional
        
        Transports instructions to and from the control unit to communicate with other devices, eg; ALU, registers, clock
        
        Data Bus
        
        Bidirectional
        
        Transports data from registers to contrul unit, and vice versa
        
        Address Bus
        
        Unidirectional
        
        Transports address locations from the CU to the registers
      - Control Unit
        
        Manages the Computer's operations and controls its actions
      - Clock
        
        Releases a pulse at constant intervals to synchronise the operations of the CPU
      - ALU
        
        Where all logical and arithematic operations are solved
  - - - Non-Volatile
      - Larger Size
      - Slow Access Speed
    - - Volatile
      - Fast Access speed
      - Small Size
      - Scalable
- - - - Scheduling
      - VRAM
      - Paging
      - Multi-tasking
      - Interrupts
      - Policies
    - - Firewalls
      - Accounts
      - Authentication
    - - GUI
        
        Icons
        
        Menus
        
        Pointing Device
        
        Windows