MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -For such calculations, it functions as a temporary storage location. It holds the intermediate results of each such operation, with the value getting progressively overwritten after every operation.

Detailed explanation-2: -Accumulator machines An accumulator machine, also called a 1-operand machine, or a CPU with accumulator-based architecture, is a kind of CPU where, although it may have several registers, the CPU mostly stores the results of calculations in one special register, typically called “the accumulator".

Detailed explanation-3: -The accumulator is an 8-bit register that is a part of arithmetic/logic unit (ALU). This register is used to store 8-bit data and to perform arithmetic and logical operations. The result of an operation is stored in the accumulator.

Detailed explanation-4: -The fourth is the accumulator. It is a register that is similar to the general purpose register. It holds data or the results of an operation during the processing cycles. The accumulator can hold one of the two operands during any ALU operation.

Detailed explanation-5: -In 8085 Instruction set, STA is a mnemonic that stands for STore Accumulator contents in memory. In this instruction, Accumulator 8-bit content will be stored in a memory location whose 16-bit address is indicated in the instruction as a16. This instruction uses absolute addressing for specifying the destination.