![]() Embedded systems and general-purpose computers used x86 chips before the PC-compatible market started, some of them before the IBM PC (1981) debut.Īs of June 2022, most desktop and laptop computers sold are based on the x86 architecture family, while mobile categories such as smartphones or tablets are dominated by ARM. The term is not synonymous with IBM PC compatibility, as this implies a multitude of other computer hardware. The term "x86" came into being because the names of several successors to Intel's 8086 processor end in "86", including the 80186, 80286, 8036 processors. The 8086 was introduced in 1978 as a fully 16-bit extension of Intel's 8-bit 8080 microprocessor, with memory segmentation as a solution for addressing more memory than can be covered by a plain 16-bit address. ![]() X86 (also known as 80x86 or the 8086 family ) is a family of complex instruction set computer (CISC) instruction set architectures initially developed by Intel based on the Intel 8086 microprocessor and its 8088 variant. The i686 subset of the x86 architecture is therefore fully open.ĪMD Athlon (early version), a technically different but fully compatible x86 implementation The Pentium Pro processor (and NetBurst) has been on the market for more than 21 years and so cannot be subject to patent claims. For some advanced features, x86 may require license from Intel x86-64 may require an additional license from AMD. X87, IA-32, x86-64, MMX, 3DNow!, SSE, MCA, ACPI, SSE2, NX bit, SMT, SSE3, SSSE3, SSE4, SSE4.2, AES-NI, CLMUL, RDRAND, SHA, MPX, SME, SGX, XOP, F16C, ADX, BMI, FMA, AVX, AVX2, AVX-VNNI, AVX512, VT-x, VT-d, AMD-V, AMD-Vi, TSX, ASF, TXT For the 32-bit generation of this architecture that is also referred to as "x86", see IA-32.ġ978 (16-bit), 1985 (32-bit), 2003 (64-bit) This article is about the Intel microprocessor architecture in general. ![]()
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