Questions

An operating system is the system software that handles the software and hardware resources and provides services for the computer programs. SO without an operating system, a computer cannot "boot".

Rakshasa marriage is the marriage of a maiden involving her forcible abduction from her home after her kinsmen have been slain or wounded much like its practice in Khazakh and Uzbek cultures where it is still practised as a ritual.

Adi Shankara or Shankara, was an early 8th century Indian philosopher and the ologian who consolidated the doctrine of Advaita Vedanta.
He is credited with unifying and establishing the main currents of thought in Hinduism. It is with his teacher Govinda, that Shankara studied Gaudapadiya Karika, as Govinda was himself taught by Gaudapada.

Acrimonious means angry (typically of speech or discussion)Legal means relating to lawSevere means extremeCursive means written with the letters joinedHarmonious means sweet-soundingwhichis nearly opposite meaning to Acrimonious

The working principle of a washing machine is centrifugation.

Centrifugation is a separation process which uses the action of centrifugal force to promote accelerated settling of particles in a solid-liquid mixture.

The washing machine consists of centrifuge for this purpose. A centrifuge is a piece of equipment that puts an object in rotation around a fixed axis, applying a force perpendicular to the axis of spin that can be very strong.