Question

To locate the exact location of data in memory, we need the starting address of the segment, which is found in the DS register and an offset value. This offset value is also called?

(a) Effective Address

(b) Direct offset address

(c) Memory address

(d) General Address

I have been asked this question during an interview.

Origin of the question is Assembly Languages topic in division Computer Languages of Computer Fundamentals

Answer 1

Right choice is (a) Effective Address

The explanation: When operands are specified in memory addressing mode, direct access to main memory, usually to the data segment, is required. This way of addressing results in slower processing of data. To get the exact location of data in memory, we need segment start address, which is found in the DS register and an offset value. This offset value is called an effective address.