We see it in every computer or laptop, we see it in our calculators, and we see it in our mobile phones, it’s called CPU. “The Central Processing Unit (CPU) is a chip that works as the Brain of the Computer. The basic work of a CPU is processing the instructions given by the users” (Soudagar ,2012). There are some common names of CPU: The brain of the computer; because it does all calculation and logical operations, Processor or Computer Processor, Microprocessor, Central Processor and System Unit.
The first CPU was created on July 18 1968 by Robert Noyce and Gordon Moore. In 1970, Intel introduced a 1KB memory chip, 1 KB was larger than anything and it equals 1024 bits. The 4004 chip ran at maximum clock speed of 740,000 cycles per second and it was created on 15 November 1971 contained 2,300 transistors, and each transistor was spaced about 10 microns. The chip costs $200. The 4004 chip was designed for calculators but it was useful for many other functions. For example, it was used in traffic light controllers and blood analyzers. Intel released the 8008 processor in April 1972. It ran at a clock speed of 500 KHz, it contained 3,500 transistors. Intel released 8080 processor in April 1974 and it was design by Masatoshi Shima, it ran at maximum clock speed of 2 MHz 8080 processor was really better than 8008, it was better than 8008 by 10 times, the 8080 processor contained 6,000 transistors. Intel introduced the 8085 in March 1976, it ran at maximum clock speed 5 MHz and it contained 6,500 transistors which is better than 8080 processor. Processors evolution depend on number of transistor, increasing the clock rate and increasing the number of cores in a single chip multi-core processors .Intel released the 8086 in June 1978, it ran at 5 MHz and it contained 29,000 transistors. But after few years the processors became faster. For example, 286 was released in 1982 by Intel, it contained 134,000 transistors. So there was a huge difference between 8086 chip and 286 chip. But in 1985, Intel introduced 386 processor it was better than Intel 286 because it contained 275,000 transistors. Intel 486 processor was released in 1989, it contained 1.2 million transistors, and it was 50 times faster than 4004 processor. In 1995, the first processor in the P6 (686) family was produced and it contained 5.5 million transistors. In every year the processors have become better and better and with many transistors which make computers, laptops and mobile phones faster.
Clock rate is how fast processors can execute instructions. The speed of computers depends on clock rate, the faster the clock rate the faster computer executes instructions.
A multi-core processor makes computers faster, because it’s about two or more cores integrated onto a single integrated circuit. The multi-core processor can run multiple instructions at the same time. A dual-core processor has two cores. For example, AMD Phenom II X2, Intel Core Duo. A quad-core processor contains four cores. For example, AMD Phenom II X4.
In conclusions, CPU is the brain of the computer, it does many complex calculations. The CPU is improving nearly every year by increasing the clock rate and the increasing the number of cores in a single chip so it become faster every year. CPU is very important in our life, because we see it in every logical device like calculators, laptops, computers and mobile phones.
References
Central processing unit - Wikipedia, the free encyclopedia. (n.d.). Wikipedia, the free encyclopedia. Retrieved April 12, 2012, from http://en.wikipedia.org/wiki/Central_processing_unit
How Does CPU works. (n.d.). Cheap Computer Deal Built with Cheap Computer Parts. Retrieved April 12, 2012, from http://cheapcomputerdeal.com/how-does-cpu-works.html
Mueller, S. (2009, December 10). Chapter 3. Processor Types and Specifications. Welcome to Safari Books Online. Retrieved April 12, 2012, from 0-proquest.safaribooksonline.com.library.hct.ac.ae/book/hardware-and-gadgets/9780768694857/firstchapter#X2ludGVybmFsX0ZsYXNoUmVhZGVyP3htbGlkPTk3ODA3Njg2OTQ4NTcvY2gwM2xldjFzZWMx
Soudagar, I. (n.d.). Introduction to CPU - SysMatters.Com . SysMatters.Com. Retrieved April 12, 2012, from http://sysmatters.com/introduction-of-cpu/
Whatley, T. (n.d.). How Does a CPU Work? | eHow.com. eHow | How to Videos, Articles & More - Discover the expert in you. | eHow.com. Retrieved April 12, 2012, from http://ehow.com/how-does_4568642_a-cpu-work.html
Word Count: 576
Name: Hussain Mohamed Hasan Ahmed Al Haddad (CID)
The first CPU was created on July 18 1968 by Robert Noyce and Gordon Moore. In 1970, Intel introduced a 1KB memory chip, 1 KB was larger than anything and it equals 1024 bits. The 4004 chip ran at maximum clock speed of 740,000 cycles per second and it was created on 15 November 1971 contained 2,300 transistors, and each transistor was spaced about 10 microns. The chip costs $200. The 4004 chip was designed for calculators but it was useful for many other functions. For example, it was used in traffic light controllers and blood analyzers. Intel released the 8008 processor in April 1972. It ran at a clock speed of 500 KHz, it contained 3,500 transistors. Intel released 8080 processor in April 1974 and it was design by Masatoshi Shima, it ran at maximum clock speed of 2 MHz 8080 processor was really better than 8008, it was better than 8008 by 10 times, the 8080 processor contained 6,000 transistors. Intel introduced the 8085 in March 1976, it ran at maximum clock speed 5 MHz and it contained 6,500 transistors which is better than 8080 processor. Processors evolution depend on number of transistor, increasing the clock rate and increasing the number of cores in a single chip multi-core processors .Intel released the 8086 in June 1978, it ran at 5 MHz and it contained 29,000 transistors. But after few years the processors became faster. For example, 286 was released in 1982 by Intel, it contained 134,000 transistors. So there was a huge difference between 8086 chip and 286 chip. But in 1985, Intel introduced 386 processor it was better than Intel 286 because it contained 275,000 transistors. Intel 486 processor was released in 1989, it contained 1.2 million transistors, and it was 50 times faster than 4004 processor. In 1995, the first processor in the P6 (686) family was produced and it contained 5.5 million transistors. In every year the processors have become better and better and with many transistors which make computers, laptops and mobile phones faster.
Clock rate is how fast processors can execute instructions. The speed of computers depends on clock rate, the faster the clock rate the faster computer executes instructions.
A multi-core processor makes computers faster, because it’s about two or more cores integrated onto a single integrated circuit. The multi-core processor can run multiple instructions at the same time. A dual-core processor has two cores. For example, AMD Phenom II X2, Intel Core Duo. A quad-core processor contains four cores. For example, AMD Phenom II X4.
In conclusions, CPU is the brain of the computer, it does many complex calculations. The CPU is improving nearly every year by increasing the clock rate and the increasing the number of cores in a single chip so it become faster every year. CPU is very important in our life, because we see it in every logical device like calculators, laptops, computers and mobile phones.
References
Central processing unit - Wikipedia, the free encyclopedia. (n.d.). Wikipedia, the free encyclopedia. Retrieved April 12, 2012, from http://en.wikipedia.org/wiki/Central_processing_unit
How Does CPU works. (n.d.). Cheap Computer Deal Built with Cheap Computer Parts. Retrieved April 12, 2012, from http://cheapcomputerdeal.com/how-does-cpu-works.html
Mueller, S. (2009, December 10). Chapter 3. Processor Types and Specifications. Welcome to Safari Books Online. Retrieved April 12, 2012, from 0-proquest.safaribooksonline.com.library.hct.ac.ae/book/hardware-and-gadgets/9780768694857/firstchapter#X2ludGVybmFsX0ZsYXNoUmVhZGVyP3htbGlkPTk3ODA3Njg2OTQ4NTcvY2gwM2xldjFzZWMx
Soudagar, I. (n.d.). Introduction to CPU - SysMatters.Com . SysMatters.Com. Retrieved April 12, 2012, from http://sysmatters.com/introduction-of-cpu/
Whatley, T. (n.d.). How Does a CPU Work? | eHow.com. eHow | How to Videos, Articles & More - Discover the expert in you. | eHow.com. Retrieved April 12, 2012, from http://ehow.com/how-does_4568642_a-cpu-work.html
Word Count: 576
Name: Hussain Mohamed Hasan Ahmed Al Haddad (CID)
RSS Feed