21246389
Description
Mind Map by Hannah Heathcock, updated more than 1 year ago
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Created by Hannah Heathcock
almost 5 years ago
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System
Architecture
- Von Neumann
- The data and
instructions are
both stored in the
computer's
memory
- All data is stored in
binary digets
- This refers to a
logical structure,
- The data and
instructions are
both stored in the
computer's
memory
- Registers
- Accumulator
- The accumulator stores the
results of any calculations
made by the ALU.
- The accumulator stores the
results of any calculations
made by the ALU.
- MAR
- The Memory Address Register
- The MAR stores the location for data
currently being executed.
- The Memory Address Register
- MDR
- Memory Data Register
- The data that has been fetched from or is
waiting to be sent to memory.
- Memory Data Register
- PC
- Program Counter
- The register that contains the
location of the next instruction
needing to be executed.
- Program Counter
- Accumulator
- CPU Components
- ALU
- Arithmatic Logic Unit
- This carries out all mathematic and
logical calculations.
- This carries out all mathematic and
logical calculations.
- Arithmatic Logic Unit
- Control Unit
- The control unit works with the CPU to
control the flow of data and instructions
- The control unit works with the CPU to
control the flow of data and instructions
- Cache
- The cache is a small high speed
memory in the CPU that stores data
from applications that are currently
running.
- The cache is a small high speed
memory in the CPU that stores data
from applications that are currently
running.
- ALU
- FDE Cycle
- First, the data is fetched
from the RAM
- The computer
decodes the
instruction.
- The computer executes
(completes) the task.
- First, the data is fetched
from the RAM
- Performance
- Clock Speed
- The clock speed is how many
FDE cycles the CPU can
compleate per second.
- So, the higher the clock speed,
the faster the CPU.
- So, the higher the clock speed,
the faster the CPU.
- It is measured in
Heartz (Hz)
- The clock speed is how many
FDE cycles the CPU can
compleate per second.
- Cores
- Each core can complete one FDE cycle at a
time so the more cores you heve, the more
instructions can be processed at once and
the more efficient your computer is.
- Each core can complete one FDE cycle at a
time so the more cores you heve, the more
instructions can be processed at once and
the more efficient your computer is.
- Cache size
- The bigger the cache, the more
programs can run at once, so the
faster your CPU is.
- The bigger the cache, the more
programs can run at once, so the
faster your CPU is.
- Clock Speed
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