The warranty covers part by part. That means, if something
spoils, you go to different companies to replace it.
For example, your hard disk and monitor spoils. Say it's a Seagate
hard disk and Phillips monitor. You bring the Seagate hard disk to
one place for replacement, and the monitor to Phillips designated
place for repairs.
Whereas for branded PCs, they repair/replace everything at their
designated repair centres.