A new Windows 8.1 namespace offers app support for USB devices: Windows.Devices.Usb. You can use it to write a Windows Store app that talks to a custom USB device. Custom in this context means a peripheral device for which Microsoft does not provide an in-box class driver.
Marijuana Effects: Sativa. Sativa strains are more of a stimulant, and are effective in appetite stimulation, relieving depression, migraines, chronic pain and nausea. Common strains include: Haze, Trainwreck, K2, Kali Mist White Russian and Kiwi Green.
For example, adding sativa to indica strains adds mental clarity and decreases sedation effects. And adding indica to sativa strains can decrease or even eliminate the sativa tendency to stimulate anxiety. Common strains include OG Kush, Himalayan Gold, Blue Cross, 00 Diesel and Kandy Kush.