3367144
Description
Mind Map by ChrisBayona1707, updated more than 1 year ago
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Created by ChrisBayona1707
over 9 years ago
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CPU (Central Processing Unit)
- Parts
- Control Unit (CU)
- Acts as a organizing force of the computer
- Is in charge of ...
- Controlling the sequence of the execution of instructions
- Moving information between the CPU and the Primary Memory via Data Bus
- Controlling the Cache Memory
- Cache Memory stores the instrucions that are used many times
- Cache Memory stores the instrucions that are used many times
- Controlling the sequence of the execution of instructions
- Works with Special Registers
- Memory Address Register (MAR)
- Stores address of the data that was fetch to the CU
- Stores address of where the data that was fetch to the CU is stored in the Cache Memory or in the RAM
- Stores address of the data that was fetch to the CU
- Memory Data Register (MDR)
- Stores Information that has being fetch or needs to be store inside the addresses that are store by the MAR
- Both are used in the Machine Cycle
- Both are used in the Machine Cycle
- Stores Information that has being fetch or needs to be store inside the addresses that are store by the MAR
- Program Counter (PC)
- Contains addresses of the instructions that are going to be executed next by the IR
- Contains addresses of the instructions that are going to be executed next by the IR
- Instruction Register (IR)
- Holds instructions that are being executed
- Holds instructions that are being executed
- Memory Address Register (MAR)
- Takes place in the Machine Cycle, by doing the process of fetching and coding
- It doesn't execute instructions
- Acts as a organizing force of the computer
- Arithmetic and Logic Unit (ALU)
- Performs ...
- Logical operations
- AND - OR - NOT
- AND - OR - NOT
- Arithmetical operations
- Adding - Multiplying - Dividing - Subtracting
- Adding - Multiplying - Dividing - Subtracting
- Logical operations
- Receives instructions decode by the CU
- Performs ...
- Control Unit (CU)
- Machine Cycle
- Process in which a instructions is executed
- 4 Main Steps
- 1. Fetch
- 2. Decode
- 3. Execute
- 4.Write-Back
- Done in the ALU
- Outputs the
executed instructions
into the RAM or the
Cache Memory by the
use of Data Bus
- Done in the ALU
- Executes the
instructions
and gets more
information if
it is necessary
- 4.Write-Back
- 3. Execute
- Done in the CU
- 2. Decode
- Brakes the
instructions
into parts and
sends it to the
ALU by the
use of
Data Bus
- Brakes the
instructions
into parts and
sends it to the
ALU by the
use of
Data Bus
- 2. Decode
- Search for a
instructions in the
RAM or the Cache
Memory, that comes
with a Address that is
save by the MAR
- 2. Decode
- 1. Fetch
- 4 Main Steps
- Process in which a instructions is executed
- Can transfer information (Instructions or Addresses - Data) between them and the rest of the components in the computer by the
use of Buses
- Address Bus
- Tranfers addresses
- Tranfers addresses
- Data Bus
- Transfers information
- Transfers information
- Address Bus
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