(Or “286”, “i286”) A microprocessor developed by Intel. THe 80286 processor has a 16-bit data bus and incorporates a memory management unit that allowed a limited amount of multitasking. The 80286 only has a segmented MMU while the later processors add a paged MMU “behind” the segmented one.
The 80286 was the processor in the IBM PC AT personal computer.
- Intel 80386
processor (Commonly abbreviated to “386”, trademark “Intel386”) The successor to the Intel 80286 microprocessor. It was the first Intel processor with 32-bit data and address busses. It can address four gigabytes (2^32 bytes) of memory; however, 16 megabytes is a typical maximum in IBM PCs. The 386 allows multiple application programs to run at the […]
- Intel 80386dx
processor A version of the Intel 80386 with a 32-bit data bus and 32-bit address bus, a BGA. The 386DX was clocked at 16 to 33 MHz by Intel and up to 40 MHz by AMD. It comes in a BGA package. (2003-07-05)
- Intel 80386sx
processor A lower-speed version of the Intel 80386. It uses a 16-bit data bus instead of a 32-bit data bus. It has a 24-bit address bus. It is faster than the 286, and more importantly, like the full-size 386, provides more flexibility in running existing DOS applications. Intel’s version runs at 16 MHz, while AMD’s […]
- Intel 8048
processor The microcontroller used in IBM PC keyboards. The 8048 was inspired by, and similar to, the Fairchild F8 microprocessor but, being a microcontroller, was designed for low cost and small size. The 8048 has a modified Harvard architecture, with program ROM on chip and 64 to 256 bytes of RAM also on chip. I/O […]