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386 |
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386 The first 32-bit CPU in, and third generation of, the Intel x86 family. The term may refer to the chip or to a PC that used it. Introduced in late 1985, it was the successor to the 286, and although adequate for DOS, it was slow for Windows and other graphics-based programs. It was the first x86 chip to unify memory management and allocate both extended and expanded (EMS) memory on demand. It also added Virtual 8086 Mode, which allowed multiple DOS applications to be multitasked side by side with Protected Mode (32-bit) applications. The 386 architecture was followed in all subsequent x86 chips. See PC and x86.Technical Specs Type: 32-bit multitasking microprocessor Transistors: 275,000 (1.5 micron) Package: 132-pin PGA Registers: 32 32-bit Real Mode: Performs as a 16-bit 8086 CPU; addresses 1MB memory. Protected Mode: Addresses 4GB physical and 64TB virtual memory; provides access to memory protection and 32-bit instructions. Virtual 8086 Mode: Protected Mode subset that runs a Real Mode application in a virtual machine.
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No references found | Intel has sued Cyrix, claiming that the upstart company copied the design for its enormously successful 80387 math coprocessor. It is available with a 80386 and 80387 co-processor unit and will be available only on series 15 CNCs. |
80387 |
802.3ak 802.3an 802.3ba 802.3u 802.3z 802.4 802.5 802.5 network 802.6 802.7 802.af 802.x 802.xx 80286 80286 Microprocessor 80287 8031 8032 80386 80386DX 80386DX Microprocessor 80386SL 80386SX 80386SX Microprocessor 80387 804880486 80486DX 80486SX 80487 8051 8051 Monitor Program 8052 80586 80686 80786 8080 8080 Microprocessor 8085 8086 8086 emulator 8086 emulator 8086 microprocessor 80860 8087 8088 8088 Microprocessor 80886 | |||||||
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