The size of DI and SI register is:
Correct answer: B. 4 bytes
- A. 2 bytes
- B. 4 bytes
- C. 6 bytes
- D. 8 bytes
Explanation
In most modern computer architectures, including x86 which is commonly used in personal computers, the DI (Destination Index) and SI (Source Index) registers are both 4 bytes in size. They are used for memory addressing and can hold 32-bit values.It is important to note that the size of registers can vary depending on the specific computer architecture. However, 4 bytes is the most common size for these registers.
Last updated
About Hardware and Software
Hardware includes the physical components of a computer, such as the CPU, motherboard, registers, memory, storage devices and peripheral equipment. Software covers system software, application software, utilities, drivers and firmware, with attention to how the operating system manages hardware and how software differs from the physical equipment it controls.
Practise Hardware and Software
290 free Hardware and Software MCQs from Computer Science and IT, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Computer Science and IT questions like this
Computer Science and IT is on 40 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.