Get computer info:

wmic csproduct

Get BIOS information:

wmic bios get

Get disk usage:

wmic logicaldisk get size,freespace,caption

Get logical drives:

wmic logicaldisk get caption,description,drivetype,providername,volumename

Get physical disks:

wmic diskdrive list brief /format:list

Get last boot time:

wmic os get lastbootuptime

Get monitor information:

wmic desktopmonitor get Caption, MonitorType, MonitorManufacturer, Name

Get display resolution:

wmic desktopmonitor get screenheight, screenwidth

Get video adapter/card type:

wmic path win32_VideoController get name

Get printers:

wmic printer list brief 

Get memory information:

wmic memorychip list full