80386DX was more commonly known as the 386DX processor, which was developed by Intel Corporation at the beginning of 1985, which was commonly called the 386DX. It featured a 32-bit architecture including built in multitasking and was available in clock speeds of 16MHz, 20MHz, 25MHz, and 33MHz. The 80386SL more commonly known as the 386SL was a version of Intel Corporation's 386DX microprocessor, which was first manufactured in 1990. It featured a low power consumption, and was used mainly in portable computers. The 80387 processor is a 80386 upgraded with a floating-point coprocessor.
