Evolution of Microprocessors.pptx
- 2. • Transistor was invented in 1948 (23 December 1947 in Bell lab). • IC was invented in 1958 (Fair Child Semiconductors) By Texas Instruments J Kilby. • The first microprocessor was invented by INTEL (INTegrated ELectronics).
- 3. Size of the microprocessor – 4 bit Name Year of Invention Clock speed Number of transistors Inst. per sec INTEL 4004/4040 1971 by Ted Hoff and Stanley Mazor 740 kHz 2300 60,000
- 4. Size of the microprocessor – 8 bit Name Year of Invention Clock speed Number of transistors Inst. per sec 8008 1972 500 kHz 3500 50,000 8080 1974 2 MHz 6000 10 times faster than 8008 8085 1976 (16-bit address bus) 3 MHz 6500 769230
- 5. Size of the microprocessor – 16 bit Name Year of Invention Clock speed Number of transistors Inst. per sec 8086 1978 (multiply and divide instruction, 16-bit data bus and 20-bit address bus) 4.77 MHz, 8 MHz, 10 MHz 29000 2.5 Million 8088 1979 (cheaper version of 8086 and 8-bit external bus) 2.5 Million 80186/80188 1982 (80188 cheaper version of 80186, and additional components like interrupt controller, clock generator, local bus controller, counters) 6 MHz 80286 1982 (data bus 16bit and address bus 24 bit) 8 MHz 134000 4 Million
- 6. Size of the microprocessor – 32 bit Name Year of Invention Clock speed Number of transistors Inst. per sec INTEL 80386 1986 (other versions 80386DX, 80386SX, 80386SL , and data bus 32-bit address bus 32 bit) 16 MHz – 33 MHz 275000 INTEL 80486 1986 (other versions 80486DX, 80486SX, 80486DX2, 80486DX4) 16 MHz – 100 MHz 1.2 Million transistors 8 KB of cache memory PENTIUM 1993 66 MHz Cache memory 8 bit for instructions 8 bit for data
- 7. Size of the microprocessor – 64 bit Name Year of Invention Clock speed Number of transistors Inst. per sec INTEL core 2 2006 (other versions core2 duo, core2 quad, core2 extreme) 1.2 GHz to 3 GHz 291 Million transistors 64 KB of L1 cache per core 4 MB of L2 cache i3, i5, i7 2007, 2009, 2010 2.2GHz – 3.3GHz, 2.4GHz – 3.6GHz, 2.93GHz – 3.33GHz
- 8. Generations of microprocessors: • First-generation – From 1971 to 1972 the era of the first generation came which brought microprocessors like INTEL 4004 Rockwell international PPS-4 INTEL 8008 etc. • Second generation – The second generation marked the development of 8-bit microprocessors from 1973 to 1978. Processors like INTEL 8085 Motorola 6800 and 6801 etc came into existence.
- 9. • Third generation – The third generation brought forward the 16-bit processors like INTEL 8086/80186/80286 Motorola 68000 68010 etc. From 1979 to 1980 this generation used the HMOS technology. • Fourth generation – The fourth-generation came into existence from 1981 to 1995. The 32-bit processors using HMOS fabrication came into existence. INTEL 80386 and Motorola 68020 are some of the popular processors of this generation. • Fifth-generation – From 1995 till now we are in the fifth generation. 64-bit processors like PENTIUM, Celeron, dual, quad, and octa-core processors came into existence.