Computer INTEL Processor :
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. The CPU plays a role somewhat analogous to the brain in the computer. The term has been in use in the computer industry at least since the early 1960s. The form, design and implementation of CPU have changed dramatically since the earliest examples, but their fundamental operation remains much the same.
On large machines, CPU require one or more printed circuit boards. On personal computers and small workstations, the CPU is housed in a single chip called a microprocessor. Since the 1970s the microprocessor class of CPU has almost completely overtaken all other CPU implementations. Modern CPU are large scale integrated circuits in small, rectangular packages, with multiple connecting pins.
Two typical components of a CPU are the arithmetic logic unit (ALU), which performs arithmetic and logical operations, and the control unit (CU), which extracts instructions from memory and decodes and executes them, calling on the ALU when necessary.
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. The CPU plays a role somewhat analogous to the brain in the computer. The term has been in use in the computer industry at least since the early 1960s. The form, design and implementation of CPU have changed dramatically since the earliest examples, but their fundamental operation remains much the same.
On large machines, CPU require one or more printed circuit boards. On personal computers and small workstations, the CPU is housed in a single chip called a microprocessor. Since the 1970s the microprocessor class of CPU has almost completely overtaken all other CPU implementations. Modern CPU are large scale integrated circuits in small, rectangular packages, with multiple connecting pins.
Two typical components of a CPU are the arithmetic logic unit (ALU), which performs arithmetic and logical operations, and the control unit (CU), which extracts instructions from memory and decodes and executes them, calling on the ALU when necessary.
Not all computational systems rely on a central processing unit. An array processor or vector processor has multiple parallel computing elements, with no one unit considered the "center". In the distributed computing model, problems are solved by a distributed interconnected set of processors.
Monitoring processor usage on your computer is a key factor in tracking overall performance. While some software can bog down even the fastest new computers in certain situations, you may need to upgrade to a higher-power processor or buy a new computer if you detect heavy CPU usage on your system. Viruses and malware also use processors heavily. Fortunately, it is very easily to monitor CPU usage in Windows with a free tool included in the operating system.
Computer processors are constantly being refined and enhanced, but the fastest processors available on the market as of 2010 make billions of calculations per second and are rated as high as 4 GHz or 5 GHz.