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Memory
8086 does not have RAM or ROM inside it. However, it has internal registers for storing intermediate and final results.
Input Device
Working principle registers are special memory locations within a computer's central processing unit (CPU) that hold data temporarily during processing. They are used to store operands, intermediate results, and memory addresses to make operations faster and more efficient. Registers can directly communicate with the CPU and provide quick access to data needed for calculations and other tasks.
Memory
The central processing unit has two parts: the arithmetic logic unit and the control unit.In some architectures the arithmetic logic unit may contain a small local memory for operands/results (e.g. accumulator, floating point registers, general purpose registers), but not all do.In some architectures or implementations the control unit may contain a read only memory for the microcode that interprets instructions, but not all do.In almost all modern microprocessors a cache memory is attached to the central processing unit, as placing it in very close proximity to the central processing unit significantly increases performance, but cache memory is really part of the memory unit not the central processing unit.
Cache Memory is small fast memory that stores instructions and data frequently used in processing such that when is required, Processor can quickly fetch data rather than reading it from slow storage media.
A computer is made up of many components (parts). There are five main types of components: (1) microprocessors, (2) memory chips, (3) input devices, (4) storage devices, and (5) output devices. The microprocessor, also known as the central processing unit (CPU), does the actual computing. Memory chips hold data and processing instructions for use by the microprocessor. The computer receives data through input devices, such as a keyboard. Storage devices, which include disks and tapes, hold data and instructions for transfer to memory. Output devices, such as a television-like monitor, show results of the computer work. A computer is made up of many components (parts). There are five main types of components: (1) microprocessors, (2) memory chips, (3) input devices, (4) storage devices, and (5) output devices. The microprocessor, also known as the central processing unit (CPU), does the actual computing. Memory chips hold data and processing instructions for use by the microprocessor. The computer receives data through input devices, such as a keyboard. Storage devices, which include disks and tapes, hold data and instructions for transfer to memory. Output devices, such as a television-like monitor, show results of the computer work.
Read Only Memory (ROM)
The processor uses temporary storage called primary storage, to temporarily hold both data and instructions while it is processing them. Another word for primary storage is called memory.
Levels of processing theory suggests tha there are three levels of processingShallow Processsing - Structural Encoding: where you emphasize the physical structure of the stimulus (i.e. caapitalization)Intermediate Processing - Phonemic Encoding: where you emphasize what the word sounds like (i.e. rhymes)Deep Processing - Semantic Encoding: where you understand the meaning of the stimulus (i.e. definition of)According to the levels of processing theory, the longer lasting memory codes are a result of Semandtic Encoding which is the deepst processing level and where you are required to understand the stimulus.
RISC architectures generally have fewer instructions that operate directly on memory locations than CISC architectures. So, where a CISC machine will have instructions that operate directly on memory, in RISC this would be implemented as: Load from memory into register, do operation on register, store register back into memory. So a lot of the processing revolves around the Load-Store loop.