COMPUTER SCIENCE AND ENGINEERING
COMPUTER ARCHITECTURE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Stores the address of the next instruction in memory
|
|
|
Stores the address of where the next item will be fetched from
|
|
|
Stores data fetched from memory, or waiting to be stored in memory
|
|
|
Stores the result of arithmetic calculations
|
Detailed explanation-1: -An accumulator is primarily used as a register in a CPU to store intermediate logical or arithmetic data in multistep calculations. For such calculations, it functions as a temporary storage location.
Detailed explanation-2: -Accumulator is a pressure vessel for storing hydraulic pressure in it utilizing compressible and decompressible nature of nitrogen gas. So, it can be said that the accumulator has a similar function to the rechargeable electrical battery. In electricity, electrical energy is stored to the battery.
Detailed explanation-3: -Accumulator. In a computer’s central processing unit (CPU), the accumulator (ACC in the image below) is a register in which intermediate arithmetic and logic results are stored.
Detailed explanation-4: -The arithmetic logic unit is that part of the CPU that handles all the calculations the CPU may need, e.g. Addition, Subtraction, Comparisons. It performs Logical Operations, Bit Shifting Operations, and Arithmetic Operation. Accumulator (ACC): Stores the results of calculations made by ALU.
Detailed explanation-5: -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.