Operating System (OS)
The higher versions of the operating systems are so written that programs designed for earlier versions can still be run. What is it called?
which perform an operation on a register operand and an operand which is located in the main store, generally leaving the result in the register, except in the case of store operation when it is also
which perform indicated operations on two fast registers of the machine and leave the result in one of the registers.
EXAMIANS