The counter when accessed. Secondly is the Decode function

The
central processing unit, otherwise known as the CPU or processor, is the chip
on the motherboard of a computer which controls everything that the computer
processes as the heart of a computer. The circuitry inside a CPU processes the
instructions that software and programs send it by interpreting the
instructions into movements of data within a computer’s memory.

It
does this through four functions, first – Fetch, this is when the CPU first
receives the instructions from a program, each instruction has a particular,
unique address and it is kept track of by a CPU’s program counter when
accessed. Secondly is the Decode function – the language that the instructions
are written in is broken down/translated to Assembly language which it can
understand to then use an assembler to translate the Assembly code into binary
code. The CPU can now use the code to execute the program’s instructions. It
then executes the code by carrying out the necessary procedure of either using
its ALU (Arithmetic Logic Unit) to calculate incredibly difficult mathematical
functions, move data around within the memory, or jump to various data
addresses within the program itself. The final phase is Writeback, where it
writes the output into the computer’s memory to create the change in data that
the program/user requested.

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The performance of a CPU is typically the speed at which it
processes data, called the clock speed. The clock speed is measured in
Gigahertz (GHz); one gigahertz is one billion calculations per second. Other
aspects of a processor include a higher memory capacity, a lower required
voltage to prevent the processor from getting hot, and the capabilities to
process new types of instructions. The CPU contains a memory store called the
cache, which may be built in or near the CPU; the cache stores functions that
are used regularly which is what creates a computer’s history and allows the
system to reload pages through the back/forward buttons. Most modern CPUs do
have more than one cache for different roles which work together to process
information as fast and efficient as possible. Obviously, every computer
requires a CPU – PCs have different processors depending on the model or what
the owner chose to use if it was custom made. Meanwhile, other gaming platforms
of the same model will use the same processor – for example, all PlayStation
4’s have an 8-core AMD x86-64 Jaguar processor that runs at 1.6 GHz.

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