Question 1
[Q.1] In a computer system, what does the Program Counter (PC) register hold?
Detailed Solution
The Program Counter (PC) is a CPU register that holds the memory address of the next instruction waiting to be fetched and executed.
[Q.1] In a computer system, what does the Program Counter (PC) register hold?
The Program Counter (PC) is a CPU register that holds the memory address of the next instruction waiting to be fetched and executed.
[Q.2] What is the binary representation of the decimal number 43?
43 in binary: 32 + 8 + 2 + $1 = 2^5 + 2^3 + 2^1 + 2^0$ = 101011 in base 2.
[Q.3] Which cache write policy updates both the cache memory and the main memory simultaneously during a write operation?
In Write-Through policy, data is written to both the cache and main memory at the same time, ensuring consistency at the cost of higher write latency.
[Q.4] Which logic gate produces an output of 1 ONLY when all of its inputs are 0?
A NOR gate outputs HIGH (1) only when all inputs are LOW (0). If any input is 1, the NOR output is 0.
[Q.5] What is the 2's complement of the 8-bit binary number (00001100)β?
1's complement of 00001100 = 11110011. Adding 1 yields 2's complement = 11110100.