# What is the role of Cu and Alu in a computer system?

ALU and CU are the heart of the CPU. ALU is the Arithmetic and Logic Unit which performs all the arithmetic and logical operations such as addition, subtraction, logical AND, OR etc. CU is the Control Unit. It decodes the instructions, and controls all the other internal components of the CPU to make it work.

Is an ALU sequential or combinational?

Sequential and combinational alu. 2. ? ALU stands for: Arithmetic Logic Unit ? ALU is a digital circuit that performs Arithmetic (Add, Sub, . . .) and Logical (AND, OR, NOT) operations. ? Understanding how an ALU is designed and how it works is essential to building any advanced logic circuits.

What is an arithmetic processor?

An arithmetic-logic unit (ALU) is the part of a computer processor (CPU) that carries out arithmetic and logic operations on the operands in computer instruction words. In some processors, the ALU is divided into two units, an arithmetic unit (AU) and a logic unit (LU).

## What is the function of Alu in a computer system?

An arithmetic logic unit (ALU) is a digital circuit used to perform arithmetic and logic operations. It represents the fundamental building block of the central processing unit (CPU) of a computer. Modern CPUs contain very powerful and complex ALUs.

## What are the main functions of the CPU?

Video: Central Processing Unit (CPU): Parts, Definition & Function. The central processing unit (CPU) is the brain of your computer. It handles all the instructions you give your computer, and the faster it does this, the better.

## What is the function of arithmetic logic unit?

An arithmetic logic unit (ALU) is a digital circuit used to perform arithmetic and logic operations. It represents the fundamental building block of the central processing unit (CPU) of a computer. Modern CPUs contain very powerful and complex ALUs.

## What is register as used in computer?

A processor register (CPU register) is one of a small set of data holding places that are part of the computer processor. A register may hold an instruction, a storage address, or any kind of data (such as a bit sequence or individual characters). Some instructions specify registers as part of the instruction.

## What does the ALU do?

An arithmetic logic unit (ALU) is a digital circuit used to perform arithmetic and logic operations. It represents the fundamental building block of the central processing unit (CPU) of a computer. Modern CPUs contain very powerful and complex ALUs. In addition to ALUs, modern CPUs contain a control unit (CU).

## What is CU in computer?

The control unit (CU) is a component of a computer’s central processing unit (CPU) that directs the operation of the processor. It tells the computer’s memory, arithmetic/logic unit and input and output devices how to respond to a program’s instructions. Most computer resources are managed by the CU.

## What is meant by control signals?

control signal. A pulse or frequency of electricity or light that represents a control command as it travels over a network, a computer channel or wireless. In the data communications world, control signals typically travel the same path as the data either as separate packets or contained within the data packets.

## What part of the computer holds information?

CPU/processor. The central processing unit (CPU), also called a processor, is located inside the computer case on the motherboard. It is sometimes called the brain of the computer, and its job is to carry out commands.

## What is the function of the main memory in a computer?

1) Primary storage, also known as main storage or memory, is the area in a computer in which data is stored for quick access by the computer’s processor. The terms random access memory (RAM) and memory are often as synonyms for primary or main storage.

## What is the main memory?

Main memory is where programs and data are kept when the processor is actively using them. When programs and data become active, they are copied from secondary memory into main memory where the processor can interact with them. Main memory is sometimes called RAM. RAM stands for Random Access Memory.

## What is MU in a computer?

Random access memory or RAM is a form of data storage used in computers. Taken in the form of integrated circuits which represents primary or temporary storage, it allows data which is stored to be accessed in any order, which is why it’s called random.

## How is the cache is used by the CPU?

A cache is a smaller, faster memory, closer to a processor core, which stores copies of the data from frequently used main memory locations. Most CPUs have different independent caches, including instruction and data caches, where the data cache is usually organized as a hierarchy of more cache levels (L1, L2, etc.).

## What is the fetch execute cycle?

An instruction cycle (also known as the fetchâ€“decodeâ€“execute cycle or the fetch-execute cycle) is the basic operational process of a computer. It is the process by which a computer retrieves a program instruction from its memory, determines what actions the instruction dictates, and carries out those actions.

## What is the memory unit of a computer?

Memory unit is the amount of data that can be stored in the storage unit. This storage capacity is expressed in terms of Bytes.

## What is the machine cycle?

The steps performed by the computer processor for each machine language instruction received. The machine cycle is a 4 process cycle that includes reading and interpreting the machine language, executing the code and then storing that code.

## Which generation of computers is still under development?

Fifth generation computing devices, based on artificial intelligence, are still in development, though there are some applications, such as voice recognition, that are being used today. The use of parallel processing and superconductors is helping to make artificial intelligence a reality.

## What is the role of virtual memory?

Virtual memory is a memory management capability of an OS that uses hardware and software to allow a computer to compensate for physical memory shortages by temporarily transferring data from random access memory (RAM) to disk storage.

## What is the function of memory?

The computer memory is a temporary storage area. It holds the data and instructions that the Central Processing Unit (CPU) needs. Before a program can be run, the program is loaded from some storage medium into the memory.

## What is meant by control memory?

CONTROL MEMORY Control memory is a random access memory (RAM) consisting of addressable storage registers. It is primarily used in mini and mainframe computers. It is used as a temporary storage for data.

## What is the purpose of the memory data register?

A memory buffer register (MBR) or memory data register (MDR) is the register in a computer’s processor, or central processing unit, CPU, that stores the data being transferred to and from the immediate access storage. It contains the copy of designated memory locations specified by the memory address register.

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