PORTIBM PC Portable (uses same BIOS as XT) 0C00 - EISA(Enhanced Industry-Standard Architecture) A 32-bit superset of the IBMInternational Busiuness Machines ATIBM PC AT's expansion bus (which is now known as the ISA or Industry-Standard Architecture bus).??? - PAGE REGISTER

0C00  RW  page register to write to SRAM(Static Random Access Memory)  RAM which typically consists of one flip-flop per bit of memory.  Unlike DRAMs, static RAM retains its contents as long as power is applied.  Because there is no need to refresh the contents of memory addresses which are read, SRAM is faster than DRAM, but it is more expensive and typically is available in much smaller sizes than DRAM because each bit occupies more space on the chip.  See also DRAM. or I/O