Computers used to be a lot noisier than they are today. And I don’t just mean the whir of spinning hard disks and the rattle of fans—they used to boop and beep every time you turned them on. If you miss the chimes of classic PC hardware but aren’t willing to switch to a machine that gets fewer than 1,000 frames per second in Doom, then this M.2 trinket might be for you. Japanese online shop Kadenken is selling an M.2 module with an integrated speaker that emits the distinctive beep-boops of an NEC PC-9800 series, which was first sold in Japan in 1982. NEC shipped more than 18 million units ove…