Central processing unit (CPU) is the brain of your computer. CPU handles all the instructions you give on your computer, and the sooner he does this, the better. Learn about how the process of CPU instructions and how computer engineers continue to come up with ways to make it run faster.
Introduction
So your new computer shopping at an electronics store and you try to understand the technical specifications. One computer that looks cool to have a quad-core 3.5 GHz Intel i7 '64 -bit '. It sounds impressive, but what exactly does this? The last computer you bought a few years ago had a sticker on it that said the Pentium 4, but you do not remember the details.
Computers that run seemed a bit slow, but why do you need 64-bit quad-core? Why this is actually better than the processor on your old computer? To understand what it means to the specifications, we first have to see how this processor is designed and how it functions.
So your new computer shopping at an electronics store and you try to understand the technical specifications. One computer that looks cool to have a quad-core 3.5 GHz Intel i7 '64 -bit '. It sounds impressive, but what exactly does this? The last computer you bought a few years ago had a sticker on it that said the Pentium 4, but you do not remember the details.
Computers that run seemed a bit slow, but why do you need 64-bit quad-core? Why this is actually better than the processor on your old computer? To understand what it means to the specifications, we first have to see how this processor is designed and how it functions.
understanding CPU
Central processing unit (CPU) of a computer is a piece of hardware that carry out the instructions of a computer program. It performs arithmetic, logical, and input / output operations base of a computer system. CPU is like the brain of the computer - every instruction, no matter how simple, must go through the CPU. So let's say you hit the letter 'k' on your keyboard and appear on the screen - your computer's CPU is what makes this possible. CPU is sometimes referred to as a central processor unit, or processor for brevity. So, when you look at the specifications of the computer at your local electronics store, usually refers to the CPU as the processor.
When we begin to look at the various components of the CPU and how they function, remember that it is all about speed. When we use our computers want to command done very quickly. When the orders become more complex (for example, creating a 3D animation or video file editing), we demand more from the CPU. Thus, the technological advances we have seen in processor technology have largely been driven by the need for speed.
components CPU
A CPU generally has a number of components. The first is the arithmetic logic unit (ALU) which perform simple arithmetic and logical operations. The second is a control unit (CU) which manages various computer components. It reads and interprets instructions from memory and turn it into a series of signals to activate other parts of the computer. The control unit is called the arithmetic logic unit to perform the necessary calculations. Third is the cache, which serves as a high-speed memory where the instructions can be copied to and retrieved. Old CPU consists of many separate components, but since 1970 they have been built as an integrated unit called a microprocessor. Thus, the CPU is a specific type of microprocessor. Each CPU components have become so integrated that you can even recognize them from the outside. CPU shown below is measuring about 2 inches by 2 inches.
The top of the Intel CPU - as a component of an integrated unit that is not visible from the outside
CPU located on the motherboard. The motherboard has a socket for this, which is specific for a particular type of processor. A CPU will be very hot so it requires its own cooling system in the form of a heatsink and / or fan.
CPU located on the motherboard. The motherboard has a socket for this, which is specific for a particular type of processor. A CPU will be very hot so it requires its own cooling system in the form of a heatsink and / or fan.
The bottom of the Intel CPU - gold plated pins provide a connection to the motherboard
ALU is a calculation occurs. How do these calculations really be done? For the computer world, consisting of zero (0) and (1). Inside our processor can store 0s and 1s using transistors. This is a microscopic switches that control the flow of electricity depends on whether the switch is on or off. So transistor contains binary information: 1 if the current passes and 0 if the stream does not go through. Transistor is located on a very thin piece of silicon. A single silicon chip can contain thousands of transistors. A single CPU chip contains a large number. This combined only covers about one square inch or more. In modern CPUs, however, that every square inch can accommodate several hundred million transistors - high-end CPU very latest has more than one billion! Calculations performed by the signal to turn on or off different combinations of transistors. And more transistors means a bigger calculations.
ALU is a calculation occurs. How do these calculations really be done? For the computer world, consisting of zero (0) and (1). Inside our processor can store 0s and 1s using transistors. This is a microscopic switches that control the flow of electricity depends on whether the switch is on or off. So transistor contains binary information: 1 if the current passes and 0 if the stream does not go through. Transistor is located on a very thin piece of silicon. A single silicon chip can contain thousands of transistors. A single CPU chip contains a large number. This combined only covers about one square inch or more. In modern CPUs, however, that every square inch can accommodate several hundred million transistors - high-end CPU very latest has more than one billion! Calculations performed by the signal to turn on or off different combinations of transistors. And more transistors means a bigger calculations.
Located on the motherboard with the CPU heatsink and fan directly on top
Early CPUs were quite large and contains many transistors do not like that now. Chipmakers such as Intel and AMD have invested a lot of research to make things smaller and fit more transistors within a single processor. So, when there is a new generation of chips, usually means they have come up with a smarter way are packed with more processing power into a single CPU. The common name of the processor (eg, Intel Pentium 4, Intel i7, AMD Athlon, AMD 870) refers to the underlying architecture of the CPU. There are so many people who would be hard to figure out what you really need in a new computer. The best way is should choose the type of the latest processors fit in your budget.
Early CPUs were quite large and contains many transistors do not like that now. Chipmakers such as Intel and AMD have invested a lot of research to make things smaller and fit more transistors within a single processor. So, when there is a new generation of chips, usually means they have come up with a smarter way are packed with more processing power into a single CPU. The common name of the processor (eg, Intel Pentium 4, Intel i7, AMD Athlon, AMD 870) refers to the underlying architecture of the CPU. There are so many people who would be hard to figure out what you really need in a new computer. The best way is should choose the type of the latest processors fit in your budget.
level Clock
Processor clock rate is the speed at which the instruction to be executed. The speed set using the internal clock and is expressed as the number of clock cycles per second. Modern CPU can process billions of calculations per second. The units used to express the clock rate is the hertz, abbreviated Hz. So when the processor has a clock speed of 3.5 GHz, which means 3.5 gigahertz, or 3.5 billion clock cycles per second. The sooner the better, but higher speed means higher costs.
Processor clock rate is the speed at which the instruction to be executed. The speed set using the internal clock and is expressed as the number of clock cycles per second. Modern CPU can process billions of calculations per second. The units used to express the clock rate is the hertz, abbreviated Hz. So when the processor has a clock speed of 3.5 GHz, which means 3.5 gigahertz, or 3.5 billion clock cycles per second. The sooner the better, but higher speed means higher costs.
Parallel computing and multi-core CPU
Computer manufacturers are always looking to improve the overall performance of the computer system, and a faster CPU is a big part of it. There are physical boundaries with clock speeds and how close together you can put a transistor on a silicon chip. One solution is to put multiple processors on a single CPU. Using two processors called duo-core processors and use the four referred to as quad-core. Most new computer systems on the market today are quad-core, but the processor CPU with more likely to come out in the near future. More cores will be more expensive.
Computer manufacturers are always looking to improve the overall performance of the computer system, and a faster CPU is a big part of it. There are physical boundaries with clock speeds and how close together you can put a transistor on a silicon chip. One solution is to put multiple processors on a single CPU. Using two processors called duo-core processors and use the four referred to as quad-core. Most new computer systems on the market today are quad-core, but the processor CPU with more likely to come out in the near future. More cores will be more expensive.
Photos of quad-core Intel processor located on the motherboard
Using multiple cores is not as easy as it sounds. It requires a new form of computing known as parallel computing. This means that the instruction should be divided into separate pieces that can be handled by separate processors. Once completed, the results should be combined again to understand. A powerful approach to parallel computing have been developed, and as a result, multi-core CPUs have now become standard in the computer system of the ordinary.
Summary
In short, the CPU is the brain of a computer, processing all the instructions you give. A CPU has various components to receive instructions, process them and then turn them into a signal for activating other parts of the computer. Calculations were performed using the microscopic switches known as transistors located on a silicon chip.
To make the job faster CPU, a number of technological innovations have been implemented: 1) packed more transistors into a single CPU, 2) increase the CPU clock speed, 3) increase the range of integers are used to represent numbers, and 4) employing multiple cores in single CPU.
Using multiple cores is not as easy as it sounds. It requires a new form of computing known as parallel computing. This means that the instruction should be divided into separate pieces that can be handled by separate processors. Once completed, the results should be combined again to understand. A powerful approach to parallel computing have been developed, and as a result, multi-core CPUs have now become standard in the computer system of the ordinary.
Summary
In short, the CPU is the brain of a computer, processing all the instructions you give. A CPU has various components to receive instructions, process them and then turn them into a signal for activating other parts of the computer. Calculations were performed using the microscopic switches known as transistors located on a silicon chip.
To make the job faster CPU, a number of technological innovations have been implemented: 1) packed more transistors into a single CPU, 2) increase the CPU clock speed, 3) increase the range of integers are used to represent numbers, and 4) employing multiple cores in single CPU.
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