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Q: What part in the computer Fetches and decodes instruction?
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What is the part of a computer that gives directs nstructions?

The instruction unit (decodes and sends commands to alu of the cpu)


WHAT IS Instruction fetch?

Instruction fetch is the process by which the CPU retrieves instructions from memory in order to execute them. The CPU fetches instructions one at a time, and these instructions are then decoded and executed as part of the program being run. Efficient instruction fetching is important for the overall performance of a computer system.


What is prefetch queue in 8086?

To speed up the program execution, the B.I.U fetches six instructions byte ahead of time from memory and stores in FIFO registers called "queue". Since EU and B.I.U are independent, the B.I.U fetches additional instruction, while EU decodes and executes a previously fetched instruction. When the execution unit is ready for its next instruction, it simply reads the instruction from the queue. The main point here is that, fetching of the next instruction is overlapped with the execution of current instruction. This is called pipe lining pipe lining saves time required for executing instructions. For example, if a multiplication operation is to be performed with its operands and registers, the microprocessor takes 100 clock-cycles, however, without pipe lining and with pipe lining, the number of clock cycles required to multiply two operands get relatively reduced. There are many instructions in 8086 microprocessor that require huge number of clock cycles. Thus, the prefetch queue becomes a circular part in enhancing the performance of the system.


What does it mean to say that a computer understands a program?

The only part of a program a computer understands is each instruction as it is presented to the instruction decoder. It understands the instruction by an intricately designed logic circuit and/or microprogram configured by a human computer hardware engineer. This engineer had to fully understand the instruction set of the machine to teach it to understand the instructions one at a time at runtime.


What is copnditional branch?

In programming, an instruction that directs the computer to another part of the program based on the results of a compare.


Which Part of the brain that controls intellectual functions and decodes information from the senses?

hypothalamus


How Microprocessors work?

A microprocessor is the main part of a computer. It is the engine of a computer that has been created on only one chip. It stores data, moves data from one memory location to another, communicates with other parts of the computer, can do computations, and is controlled by assembly language instructions, that it fetches from some memory.


Name the part of the computer that stores all information and software?

The Hard Drive is the main storage unit in a normal, desktop computer. This is the only internal component in a standard computer that has information when the machine is turned off (all your saved files, the operating system (such as Windows), etc). There are other components (such as RAM, or Random Access Memory) that store data, but this usually serves a special purpose, or is only at run-time.


What part of speech is the word instruction?

The word "instruction" can be a noun.


In what ways can a computer process data?

The part of the computer that processes data is called the processor or processing unit. Older computers had a Central Processing Unit (CPU) . Modern machines often have more than one processing unit. The processor fetches and decodes the instructions that make up the program as well as doing the arithmetical operations.


What Part of a computer that plays music and data?

A computer can only produce sound if it contains the right hardware. These come in the forms of sound cards or sound chips. In most cases these devices only convert the sound data from digital to analogue signals - the computer itself reads the binary data and decodes it into a form understandable by humans.


The part of a computer system that receives input from a keyboard or mouse is the?

CPU - trust me I already took the test! :)