A Computer can Perfaum
aukithmetical Operations like.
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function in digital computer
The ALU performs simple addition, subtraction, multiplication, division, and logic operations, such as OR and AND. The memory stores the program's instructions and data. The control unit fetches data and instructions from memory and… ... (3) control unit, and (4) arithmetic-logic unit.
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In computer science: Architecture and organization
…of a control unit, an arithmetic logic unit (ALU), a memory unit, and input/output (I/O) controllers. The ALU performs simple addition, subtraction, multiplication, division, and logic operations, such as OR and AND. The memory stores the program’s instructions and data. The control unit fetches data and
…(3) control unit, and (4) arithmetic-logic unit. Any of a number of devices is used to enter data and program instructions into a computer and to gain access to the results of the processing operation. Common input devices include keyboards and optical scanners; output devices include printers and monitors.
Microprocessor, any of a type of miniature electronic device that contains the arithmetic, logic, and control circuitry necessary to perform the functions of a digital computer’s central processing unit.
Microprocessor
Intel 4004
Intel 8080
Intel 8088
Intel 1103
In the early 1970s the introduction of large-scale integration (LSI)—which made it possible to pack thousands of transistors, diodes, and resistors onto a silicon chip less than 0.2 inch (5 mm) square—led to the development of the microprocessor. The first microprocessor was the Intel 4004, which was introduced in 1971. During the early 1980s very large-scale integration (VLSI) vastly increased the circuit density of microprocessors. In the 2010s a single VLSI circuit holds billions of electronic components on a chip identical in size to the LSI circuit. (For more about the history of microprocessors, see computer: The microprocessor.)
computer chip. computer. Hand holding computer chip. Central processing unit (CPU).
The production of inexpensive microprocessors enabled computer engineers to develop microcomputers. Such computer systems are small but have enough computing power to perform many business, industrial, and scientific tasks. The microprocessor also permitted the development of so-called intelligent terminals, such as automatic teller machines and point-of-sale terminals employed in retail stores. The microprocessor also provides automatic control of industrial robots, surveying instruments, and various kinds of hospital equipment. It has brought about the computerization of a wide array of consumer products, including programmable microwave ovens, television sets, and electronic games. In addition, some automobiles feature microprocessor-controlled ignition and fuel systems designed to improve performance and fuel economy.
Central processing unit (CPU),principal part of any digital computer system, generally composed of the main memory, control unit, and arithmetic-logic unit. It constitutes the physical heart of the entire computer system; to it is linked various peripheral equipment, including input/output devices and auxiliary storage units. In modern computers, the CPU is contained on an integrated circuit chip called a microprocessor.
Computer circuit board containing a microprocessor. The microprocessor chip contains the central processing unit (CPU).
The control unit of the central processing unit regulates and integrates the operations of the computer. It selects and retrieves instructions from the main memory in proper sequence and interprets them so as to activate the other functional elements of the system at the appropriate moment to perform their respective operations. All input data are transferred via the main memory to the arithmetic-logic unit for processing, which involves the four basic arithmetic functions (i.e., addition, subtraction, multiplica