microprocessadores
DESCRIPTION
MICROPROCESSADORESTRANSCRIPT
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MICROPROCESSADORESEVOLUÇÃO
CONCEITOS BÁSICOSARQUITETURA PADRÃO
EXEMPLOS ATUAIS
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EVOLUÇÃO A história dos microprocessadores é brevemente resumida a seguir com o
destaque de algumas datas importantes: Década de 40: Válvula e Transistor (1948) Década de 50: Comercialização do transistor Década de 60: Circuitos Integrados SSI ("Small Scale Integrated") 1968: => Bob Noyce e Gordon Murray fundam a Intel 1969: => Jerry Sanders e sete amigos fundam a Advanced Micro Devices
(AMD) Década de 70: Circuitos Integrados MSI ("Medium Scale
Integrated") 1971: => Circuitos Integrados LSI ("Large Scale Integrated") => INTEL 4004 (CPU do primeiro microcomputador de 4 bits) Figura 1 – Foto do Intel 4004 (1971) 1972: => INTEL 8008 (CPU do primeiro microcomputador de 8 bits) Figura 2 – Foto do Intel 8008 (1972) 1974: INTEL 8080 (4.500 transistores e 10 vezes mais rápido que o 8008)
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Fotos do Intel 8080 plástico (uso comercial) e cerâmico (uso militar) - 19741974: MOTOROLA 68001976: => TEXAS 9800 (CPU do primeiro microcomputador de 16 bits)1977: MOSTEK 6502 ==> Apple I, II e II plus ZILOGZ801978: INTEL 8088/8086 (29000 transistores integrados)microprocessadores BIT SLICE (2 a 64 bits) IBM-PCDécada de 80: 1980: => MOTOROLA 68.000 (68.000 transistores integrados)1981: => MOTOROLA 68.0101982: => INTEL 80186/80188=> INTEL 80286 (130.000 transistores integrados)1984: => MOTOROLA 68.0201985: => INTEL 80386 (ou 80386DX, ou i386)
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1986: => MOTOROLA 68.030 1988: => INTEL 80386SX 1989: => INTEL i486 (1.200.000 transistores) ou 486 DX Década de 90: 1991: => INTEL i386SL, i486SX Microprocessadores com tecnologia RISC 1992: => INTEL i486DX2/50 e i486DX2/66 1993: => INTEL Pentium 1995: => INTEL Pentium Pro (5,5 milhões de transistores) 1997:=> INTEL Pentium II (7,5 milhões de transistores) e Pentium
MMX 1998: => Pentium II Xeon e Celeron 1999: => Pentium III (9,5 milhões de transistores) e Pentium III Xeon Século 20: 2000: => Pentium 4 (42 milhões de transistores) 2001: => Xeon e Itanium 2002: => Tecnologia Hyper-Threading nos processadores 2003: => Tecnologia móvel Centrino
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2004: => Conexão de rede PRO/Wireless 2915ABG 2005: => Pentium M (140 milhões de transistores) 2006: => Plataforma Centrino Duo, plataforma Viiv e processador
Core 2 Duo => Pentium D 900 (376 milhões de transistores) 2007: => Dual Core Itanium 9150 (1,72 bilhão de transistores) 2008: => Core 2 Extreme Q9000 (410 milhões de transistores) => Core 2 Quad Q9100 (820 milhões de transistores) 2009 => Xeon MP X7460 (1,9 bilhão de transistores) => Atom Z500 800 MHz (47 milhões de transistores) => Core i7-965 Extreme Edition (731 milhões de transistores) 2010 => Itanium 2 Quad Core Tukwila (2,0 bilhões de
transistores)
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CONCEITOS BÁSICOSMicrocomputador Típico e suas Interfaces
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ARQUITETURA PADRÃO DE UM MICROPROCESSADOR
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CICLO DE INSTRUÇÃO LDA 0420
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