What is Arithmetic Logic Unit?
An Arithmetic logic unit (ALU) is a digital circuit that performs arithmetic and logical operations. The ALU is a fundamental building block of the central processing unit (CPU) of a computer, and even the simplest microprocessors contain one for purposes such as maintaining timers.
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The arithmetic-logic unit (ALU) performs allarithmetic operations (addition, subtraction,multiplication, and division) and logic operations.Logic operations test various condi…tions encounteredduring processing and allow for different actions to betaken based on the results. The data required to performthe arithmetic and logical functions are inputs from thedesignated CPU registers and operands
It performs all the arithmetic and logical operations in the entire computer system.
The arithmetic logic unit, or ALU, is the portion of the CPUresponsible for integer arithmetic. It also handles most logicaloperations.
ALU can perform any arithmetic and logical operation...
Before the developement of micro-processers and micro-computers, a computer was divided into functional units, e.g. reader, punch, bulk memory etc. These were all "peripherals…", gathered around and connected to a CPU.. A CPU was a central processing unit, consisting of control, memory, instruction interpreter, input / output and ALU.. The ALU or Arithmetic Logic Unit was the very heart of the computer. A simple ALU could add, negate, compare (which of two numbers is greater or are they equal,), shift left, shift right, increment or decrement. It could also cause the computer to jump to a different part of the program, rather than go on to the next instruction in strict sequence. Most important of all was the ability to make a conditional jump, changing the order in which instructions were executed only if ( perhaps if not ) some condition was true.. A computer with an ALU like this could subtract, multiply or divide by following a short sequence of instructions, but it was time consuming. Today's ALU can do things like these by hardware, built in. In a modern computer, the ALU, a very powerful entity, is integrated inside the main computer chip. It performs all the above functions and many more besides.
Arithmetic, such as addition , subtraction , multiplication , or division . . Logic, such as or , and , or exclusiveor . . Comparison, such as greater than , less th…an , equal , or not equal .
The Arithmetic Logic Unit (ALU) is the heart of a CPU. This is what allows the computer to add, subtract, and to perform basic logical operations.
In computing, an arithmetic logic unit (ALU) is a digital circuit that performs arithmetic and logical operations. The ALU is a fundamental building block of the central proce…ssing unit of a computer, and even the simplest microprocessors contain one for purposes such as maintaining timers. The processors found inside modern CPUs and graphics processing units (GPUs) accommodate very powerful and very complex ALUs; a single component may contain a number of ALUs.
The arithmetic logic unit or ALU performs arithmetic, logic, andinteger operations. ALU was created by mathematician John vonNeumann in 1945.
ALU is responsible for the processing of data inside a processor. It analyses and compares numbers, letters and special characters. It performs calculations and does compariso…ns. It also decoded data and manipulate them to produce information in machine code and then send that to the CU. It analyzes and compares numbers, letters and special characters.
As the name tells us the alu performs arithmetic and logic operations on two numbers in a CPU. I am answering assuming atleast some knowledge on the functionning of binary l…ogic and computational science. A basic ALU has two input buses for the operators and one input bus for the selection of the operation. The selection is done via a MUX/DEMUX circuit. It's pretty straightforward...
0 and 1 are the Sign Magnitudes 0 is used as +ve 1 is used as -ve e.g if we see +18 10 = 10010 2 but in the arithmetic representation well be 0 10010 2 -18 10… = 10010 2 but in the arithmetic representation well be 1 10010 2
The Arithmetic Logic Unit as suggested by the name carries out the arithmetic calculations of the computer.
The operation of ALU are: addition, multiplication,comparing,complement(subtraction),exclusive OR, increment, decrement, and bit-shifting. Notably, ALUs perform only INT…EGER operations, not Floating Point operations.
alu is for the logical and arithmetical operations in the system unit.
ALU is the part of computer.It perform arithmetic operations such as addition,subtraction,multiplication,division and also it performs logical operations such as AND OR etc...….
That's a chip (or part of a chip) specialized in doing calculations such as additions, subtractions, multiplications, and divisions of floating-point numbers, that is, numbers… with decimals (basically, numbers in scientific notation).