1.List in steps a brief history of the development of the processor when did multi-processing come to existence?

1971	Intel introduces the first microprocessor, the Intel 4004 on November 15, 1971.
1972	Intel introduces the 8008 processor on April 1, 1972.
1974	Intel's improved microprocessor chip is introduced April 1, 1974, the 8080 becomes a standard in the computer industry.
1976	Intel introduces the 8085 processor on March 1976.
1976	The Intel 8086 is introduced June 8, 1976.
1979	The Intel 8088 is released on June 1, 1979.
1979	The Motorola 6800, an 8-bit processor is released and is later chosen as the processor for the Apple Macintosh.
1982	The Intel 80286 is introduced February 1, 1982.
1985	Intel introduces the first 80386 in October 1985.
1987	The SPARC processor is first introduced by Sun.
1988	Intel 80386SX is introduced.
1991	AMD introduces the AM386 microprocessor family in March.
1991	Intel introduces the Intel 486SX chip in April in efforts to help bring a lower-cost processor to the PC market selling for $258.00.
1992	Intel releases the 486DX2 chip March 2 with a clock doubling ability that generates higher operating speeds.
1993	Intel releases the Pentium Processor on March 22 1993. The processor is a 60 MHz processor, incorporates 3.1 million transistors and sells for $878.00.
1994	Intel releases the second generation of Intel Pentium processors on March 7, 1994.
1995	Intel introduces the Intel Pentium Pro in November.
1996	Intel announces the availability of the Pentium 150 MHz with 60MHz bus and 166 MHz with 66 MHz bus on January 4th.
1997	Intel Pentium II is introduced on May 7, 1997.
1999	Intel releases the Celeron 366 MHz and 400 MHz processors on January 4th.
1999	The Intel Pentium III 500 MHz is released on February 26, 1999.
1999	The Intel Pentium III 550 MHz is released on May 17, 1999.
1999	The Intel Pentium III 600 MHz is released on August 2, 1999.
1999	The Intel Pentium III 533B and 600B MHz is released on September 27, 1999.
1999	The Intel Pentium III Coppermine series is first introduced on October 25, 1999.
2000	On January 5 AMD releases the 800 MHz Athlon processor.
2000	Intel releases the Celeron 533 MHz with a 66 MHz bus processor on January 4th.
2000	Intel announces on August 28th that it will recall its 1.3 GHz Pentium III processors due to a glitch. Users with these processors should contact their vendors for additional information about the recall.
2001	On January 3 Intel releases the 800 MHz Celeron processor with a 100 MHz bus.
2001	On January 3 Intel releases the 1.3 GHz Pentium 4 processor.
2001	On October 9, 2001 AMD announces a new branding scheme. Instead of identifying processors by their clock speed the AMD XP will bear monikers of 1800+, 1700+, 1600+ and 1500+, with each lower model number representing a lower clock speed.
2002	Intel releases the Celeron 1.3 GHz with a 100 MHz bus and 256 kB of level 2 cache.
2003	Intel Pentium M is introduced in March.
2006	Intel releases the Core2 Duo Processor E6320 (4M Cache, 1.86 GHz, 1066 MHz FSB) April 22, 2006.
2006	Intel introduces the Intel Core 2 Duo processors with the Core2 Duo Processor E6300 (2M Cache, 1.86 GHz, 1066 MHz FSB) July 27, 2006.
2007	Intel releases the Core2 Duo Processor E4300 (2M Cache, 1.80 GHz, 800 MHz FSB) January 21, 2007.
2007	Intel releases the Core2 Duo Processor E4400 (2M Cache, 2.00 GHz, 800 MHz FSB) April 22, 2007.
2007	Intel releases the Core2 Duo Processor E4500 (2M Cache, 2.20 GHz, 800 MHz FSB) July 22, 2007.
2007	Intel releases the Core2 Duo Processor E4500 (2M Cache, 2.20 GHz, 800 MHz FSB) July 22, 2007.
2007	Intel releases the Core2 Duo Processor E4600 (2M Cache, 2.40 GHz, 800 MHz FSB) October 21, 2007.
2008	Intel releases the Core2 Duo Processor E4700 (2M Cache, 2.60 GHz, 800 MHz FSB) March 2, 2008.
2008	Intel releases the the Core 2 Duo E7200 (3M Cache, 2.53 GHz, 1066 MHz FSB) on April 20, 2008.
2008	Intel releases the Core2 Duo Processor E7300 (3M Cache, 2.66 GHz, 1066 MHz FSB) August 10, 2008.
2008	Intel releases the Core2 Duo Processor E7400 (3M Cache, 2.80 GHz, 1066 MHz FSB) October 19, 2008.
2009	Intel releases the Core2 Duo Processor E7500 (3M Cache, 2.93 GHz, 1066 MHz FSB) January 18, 2009
2009	Intel releases the Core2 Duo Processor E7600 (3M Cache, 3.06 GHz, 1066 MHz FSB) May 31, 2009

Multiprocessing is the use of multiple processing units contained in a single computer. There are many variations on this concept that vary how instructions and resources are controlled and allocated. This concept has been in existence for many years however it has only recently made inroads in to consumer computing.

Flynn's taxonomy is a classification of multiprocessing systems. The various types are shown in the grid below.

Flynn's taxonomy
	Single Instruction	Multiple Instruction
Single Data	SISD	MISD
Multiple Data	SIMD	MIMD

SISD - A sequential computer which exploits no parallelism in either the instruction or data streams. Examples of SISD architecture are the traditional uniprocessor machines like a PC or old mainframes.
SIMD - A computer which exploits multiple data streams against a single instruction stream to perform operations which may be naturally parallelized. For example, an array processor or GPU.
MISD - Multiple instructions operate on a single data stream. Uncommon architecture which is generally used for fault tolerance. Heterogeneous systems operate on the same data stream and must agree on the result. Examples include the Space Shuttle flight control computer.
MIMD - Multiple autonomous processors simultaneously executing different instructions on different data. Distributed systems are generally recognized to be MIMD architectures; either exploiting a single shared memory space or a distributed memory space