More details about Microsoft’s upcoming Windows 7 operating system emerged Wednesday. The OS will have a shorter boot time; offer greater reliability; more efficient memory usage and improved battery life for laptops, according to Microsoft’s Jon DeVaan, Steven Sinofsky and Mike Anguilo, who spoke at the Windows Hardware Engineering conference. Perhaps most significantly, Sinofsky and Anguilo demoed Windows 7 running on a miniature notebook, or netbook, with a 16 GB solid-state drive and 1 GB of random access memory running an Intel Atom dual-core 1.6 GHz processor.