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What is arithmetic and logical unit in CPU?
The arithmetic-logic unit (ALU) is that functional part of the digital computer that carries out arithmetic and logic operations on machine words that represent operands. In many CPUs, separate units exist for arithmetic operations (the arithmetic unit, AU) and for logic operations (the logic unit, LU).
What is the purpose of the arithmetic?
arithmetic, branch of mathematics in which numbers, relations among numbers, and observations on numbers are studied and used to solve problems.
What is computer logical unit?
A logical unit is a device or application program by which an end user (an application program, a terminal user, or an input/output mechanism) gains access to a SNA network. To the network, a logical unit is the source of a request coming into the network, although the logical unit might not be the original source.
What is ALU explain in detail?
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).
Which unit is part of the CPU of the computer?
The computer’s central processing unit (CPU) is the portion of a computer that retrieves and executes instructions. The CPU is essentially the brain of a CAD system. It consists of an arithmetic and logic unit (ALU), a control unit, and various registers. The CPU is often simply referred to as the processor.
How do microprocessors work?
How does a Microprocessor Work? The microprocessor follows a sequence: Fetch, Decode, and then Execute. The microprocessor fetches those instructions from the memory, then decodes it and executes those instructions till STOP instruction is reached. Later, it sends the result in binary to the output port.
How many units do we have in ALU?
In some processors, the ALU is divided into two units: an arithmetic unit (AU) and a logic unit (LU). Some processors contain more than one AU — for example, one for fixed-point operations and another for floating-point operations.