Data is stored on the disk in 512-byte 'sectors'.
the industrial/agricultural/service 'sector'
He was assigned to the northern 'sector'.
(..) We go through the desert, then we can connect with the Resistance there. -I'm heading north. KYLE: No, no, no. No you are not. The machines control the whole northern sector, up to San Francisco. -That's Skynet Central. -I have to find someone. There's a lot you don't understand about Skynet, okay? (..)2009 Terminator Salvation