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(definitions, CPU configuration, How CPU and RAM work together, cache…
definitions
progrm counter-A program counter is a specialized register that indicates the position of the CPU in its instruction sequence and holds either the address of the instruction being executed, or the address of the next, depending on the specific system.
memory data register- part of a computer's central processing unit, also known as (CPU).
Registers-a type of computer memory used to accept, store, and transfer data and instructions used by the CPU right away.
memory address register holds the address of the current instruction that is to be fetched from memory, or the address in memory to which data is to be transferred.-
CU- a component of a computer's central processing unit (CPU) that directs the operation of the processor.
accumulator-used as a register in a CPU to store intermediate logical or arithmetic data in multistep calculations.
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CPU configuration
cores
another factor that can effect the performance of the CPU is the number of the processer cores. each core can fetch and execute instructions independently so a multiple cores processor can handle several instructions at the same time
cache memory
cache memory is located between the main memory and the CPU it is used to hold data that needs to be accessed very quickly accessing cache memory is much faster than accessing main memory also known as RAM
clock speed
the CPU is constantly fetching and executing instructions and the speed at witch it does this is determined by an electronic clock this clock uses a vibrating crystal that maintains a constant speed clock speeds are measured in hertz which is the unit of frequency and means number of times per second typical modern computers work at a speed of up to 4gh gigahertz-the faster the clock speed the more instruction that can be executed every second
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cache memory purpose
In personal computers, cache memory is used to speed up access to data and applications. By storing frequently used data in cache, the CPU can access this data much faster than if it had to retrieve it from the main memory or the hard drive.
FDE cycle
The main stages involved in the Fetch Decode Execute Cycle of a computer are: Fetching the instruction from the computer's memory, Decoding it to determine what action is required, and Executing the action. These are often followed by a fourth stage, Store, where results are saved.
CPU definition
The Central Processing Unit (CPU) is the primary component of a computer that acts as its “control centre.” The CPU, also referred to as the “central” or “main” processor, is a complex set of electronic circuitry that runs the machine's operating system and apps.
embedded system
An embedded system is a small computer that forms part of a larger system, device or machine. Its purpose is to control the device and to allow a user to interact with it. They tend to have one, or a limited number of tasks that they can perform.
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