Computer Science

Extensions are added to filenames. The extensions help in identifying the file type.

Sign flag is a type of status register or the flag register. It is used to indicate the sign of certain bits.

Crowd sourcing is the appropriate term which is to be used. Though human collaboration, outsourcing and computation mean the same. Crowd Sourcing means collaboration of a group of internet users for the same purpose.

The answer is UserID. UserID is a part of identification. UserID can be a combination of username, user student number etc.

Joystick is the device used for the same. It is a point-and-draw device. It has a click button, a stick, a ball, a socket as well as a light indicator.

Initially, register A contains 50H & B contains 40H. Instruction MOV A, B means move the content of B to A. So, after this operation, both registers A & B will contain 40H.

The statement is false. Cryptography is the study of creating and using encryption and decryption techniques.

Memory management is carried out by the OS and hardware to accommodate multiple processes in main memory.

Execution is affected by :

The answer is Larger access time. The access time should be short. It is an important criteria for file organisation.