What is the function or purpose of a CPU?

Answer 1

CPU stands for central processing unit. Overall a personal computer can be divided into the following major parts from point of view of functions performed:

1. Input devices (keyboard, mouse)

2. Output devices (monitor which displays the output or results of work being done on the computer)

3. CPU (central processing unit, which is the brain of the computer which does all the processing and calculations on data inputs and provides output on screen or printer)

4. Storage devices (memories, hard disk which store data).

Many times in common language the CPU term is used for the computer box unit which contains motherboard, processor, hard disk, CD/DVD and floppy drives. This is the box to which we connect monitor, keyboard, mouse and printer through cables. In technical terms the term CPU is used only for the processor, which fits on the motherboard.

Answer 2

The CPU is the brain of the computer it does most of the computing (in some cases hardware can skip bothering the CPU). It's main functions could be said to be Arithmetic and logical calculations which are performed by the ALU (Arithmetic Logical Unit).

The CPU (Central Processing Unit) is just what the name suggests. It is the main data handling part of your computer. All the management tasks (registers, memory, graphics, etc.) route through your CPU. It is essentially the manager of your computer and does most of the computing tasks your computer can do. For example, all of the moving data around so that it can be presented as a web page is done (mainly) by the CPU.

The first Central Processing Units were originally made of discrete parts such as resistors, capacitors, diodes, vacuum tubes, Transformers, relays connected on a chassis. A chassis is a metal surface with holes and sockets for the electronic components and wires. The vacuum tubes were later replaced with transistors and other semiconductor components. With smaller parts and less heat generated, the chassis was replaced with a plastic like printed circuit board with the wires etched, printed or embedded on the board. As we learned to make components even smaller, memory and other capabilities were put on the board. the board became smaller eventually becoming the CPU unit we know today.

The CPU (Central Processing Unit) is made of many small components all attached to a little circuit board and connected by tiny wires. It is the part of a computer that does most of the work of reading (fetching) instructions (command) from memory, interpreting the instructions into computer activity, executing the instruction, fetching another instruction from memory.

When the CPU is executing the instruction, it may fetch things (data or information) from or put things into other parts of memory or a special kind of faster memory called a register. Besides moving things between memory and register, it can also perform operations between memory and/or register such as add information, subtract, multiply , divide, and other types of operations.

The CPU instructions can be used to read from or send or write to peripherals (attached devices) such as a printer, screen display, keyboard, scanner, hard drive, usb and sd cards and network devices.

A CPU processes data into information and does the calculations it needs to do for example is can calculate 1+1 and give the answer 2.

• A CPU Is located Inside The Computer System Along The Main Memory.
• IT Is The Brain Of Computer.
• It Controls The Operation Of Entire Computer System.
• It Executes The Instructions Given To It And Sends The Output To Output Units.
• It Uses A System Bus and a clock to regulate all the other devices.
• Clock Sends Electronic Signals.
• • A CPU is further divided into 2 parts:
  • Control Unit(CU)
  • Arithmetic logic Unit (ALU.)

CPU stands for central processing unit. It is responsible for dealing with tasks the computer is currently doing. It computes data and runs programs on your computer. It processes information and commands. It is also the running the base of the computer.

Overall a personal computer can be divided into the following major parts from point of view of functions performed:

1. Input devices (keyboard, mouse)

2. Output devices (monitor which displays the output or results of work being done on the computer)

3. CPU (central processing unit, which is the brain of the computer which does all the processing and calculations on data inputs and provides output on screen or printer)

4. Storage devices (memories, hard disk which store data).

Many times in common language the CPU term is used for the computer box unit which contains motherboard, processor, hard disk, CD/DVD and floppy drives. This is the box to which we connect monitor, keyboard, mouse and printer through cables. In technical terms the term CPU is used only for the processor, which fits on the motherboard.

Central Processing Unit (CPU), in computer science, microscopic circuitry that serves as the main information processor in a computer. A CPU is generally a single microprocessor made from a wafer of semiconducting material, usually silicon, with millions of electrical components on its surface. On a higher level, the CPU is actually a number of interconnected processing units that are each responsible for one aspect of the CPU's function. Standard CPUs contain processing units that interpret and implement software instructions, perform calculations and comparisons, make logical decisions (determining if a statement is true or false based on the rules of Boolean algebra), temporarily store information for use by another of the CPU's processing units, keep track of the current step in the execution of the program, and allow the CPU to communicate with the rest of the computer.

A CPU is similar to a calculator, only much more powerful. The main function of the CPU is to perform arithmetic and logical operations on data taken from memory or on information entered through some device, such as a keyboard, scanner, or joystick. The CPU is controlled by a list of software instructions, called a computer program. Software instructions entering the CPU originate in some form of memory storage device such as a hard disk, floppy disk, CD-ROM, or magnetic tape. These instructions then pass into the computer's main random access memory (RAM), where each instruction is given a unique address, or memory location. The CPU can access specific pieces of data in RAM by specifying the address of the data that it wants.

As a program is executed, data flow from RAM through an interface unit of wires called the bus, which connects the CPU to RAM. The data are then decoded by a processing unit called the instruction decoder that interprets and implements software instructions. From the instruction decoder the data pass to the arithmetic/logic unit (ALU), which performs calculations and comparisons. Data may be stored by the ALU in temporary memory locations called registers where it may be retrieved quickly. The ALU performs specific operations such as addition, multiplication, and conditional tests on the data in its registers, sending the resulting data back to RAM or storing it in another register for further use. During this process, a unit called the program counter keeps track of each successive instruction to make sure that the program instructions are followed by the CPU in the correct order.

Answer 3

As in the processor? It's like your brain, it 'translates (I forgot the verb for translating codes)' the binary codes to data and information or whatever to your computer to view words, and sends information to the Gpu and makes it produce image files.

Answer 4

The central processing unit (CPU) is the portion of a computer system that carries out the instructions of a computer program, to perform the basic arithmetical, logical, and input/output operations of the system.

Answer 5

The CPU, or central processing unit, is the part of the computer that carries out instructions. The program tells the CPU what to do. The instructions tell the CPU what to do with ports, registers, memory, the stack (special area in RAM for freeing up CPU registers and storing for usage a little bit later), etc.

Answer 6

A central processing unit is basically all the insides to a computer. The CPU is what tells the computer to do certain things and how new data is brought in to the computer.

Answer 7

The Central Processing Unit is the true computer- it receives input, proceeses it, sends it to storage, or sends to an output device.

Answer 8

What does the control unit do?

Answer 9

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