Digital Logic and Microprocessors

This arithmetic instruction in 8086 adds two binary operands and a carry and places the result in the destination.

A NOR gate outputs ON (logic 1) only when all inputs are OFF (logic 0). The NOR operation is equivalent to NOT-OR: it outputs 1 only when all inputs are 0, and outputs 0 if any input is 1. This makes it the logical complement of the OR gate.

This bit of status register in the architecture of 8087 co-processor is used for over flow error that indicates a result which is too large to be represented.

This main part of Execution Unit is a 16-bit register having 16 flip flops that shows the condition or changes produced by the execution of an instruction.

Pin 8086 is a bus high enable signal that shows the data transfer over the higher order (D15-D8) data bus.

This instruction in 8086 microprocessor is used for signed multiplication.

STI stands for Set Interrupt. This is a flag manipulation instruction in 8086, which is the interrupt flag set by the instruction that helps processor to identify the maskable interrupt on INTR pin.

General (or counting) semaphores can take any non-negative integer value, unlike binary semaphores which are restricted to 0 and 1. This allows them to track multiple available resources or control access for multiple processes.

Test-and-Set is a fundamental hardware instruction that atomically reads and modifies a memory location, making it ideal for implementing mutual exclusion primitives. Set-and-Test is not a standard hardware instruction.

It is a device used to check ports to identify network and network interface card issues.

It is a physical device which performs a logical operation on one or more logical inputs.

An array of flip-flops is known as register. So, this is the correct answer.

Demultiplexer has a single input data and multiple output. So, this a correct option.

This is the active low output signal in 8086 that does not allow other devices to take control over the system bus when it is set to zero.