The Early IBM PC Era
From the mid-1980s onward, IBM PC clones dominated the PC market, leading to a new era of internal ISA (and later PCI) modem cards designed for PC compatibles. External serial modems held on strong, however, and around this time speedy 2400 bps modems emerged on the market. Technology pushed that limit further over the years: first to 4800 bps, and then to 9600, 14400, 28800, and beyond. Also during this era, modems gained the ability to send and receive faxes.