Microprocessor Program counter in a digital computer Counts the number of times a subroutine is called. Points the memory address of the next instruction to be fetched. Counts the number of times the loops are executed. Counts the numbers of programs run in the machine. Counts the number of times a subroutine is called. Points the memory address of the next instruction to be fetched. Counts the number of times the loops are executed. Counts the numbers of programs run in the machine. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The stack is nothing but a set of reserved RAM address space reserved I/O address space reserved ROM address space None of these reserved RAM address space reserved I/O address space reserved ROM address space None of these ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The content of the A15-A8 (higher order address lines) while executing “IN 8-bit port address” instruction are all bits reset (i.e. 00H) all bits set (i.e. FFH) same as the content of A7-A0 irrelevant all bits reset (i.e. 00H) all bits set (i.e. FFH) same as the content of A7-A0 irrelevant ANSWER DOWNLOAD EXAMIANS APP
Microprocessor If the number of address bits in a memory is reduced by 2 and the addressability is doubled, the size of the memory (i.e., the number of bits stored in the memory) Remains unchanged Halves Doubles Increases by 2^(address bits)/addressability Remains unchanged Halves Doubles Increases by 2^(address bits)/addressability ANSWER DOWNLOAD EXAMIANS APP
Microprocessor When any data transfer instruction, to transfer the data from memory to microprocessor, is executed the condition flags are always reset not affected always set affected indicating specific conditions always reset not affected always set affected indicating specific conditions ANSWER DOWNLOAD EXAMIANS APP
Microprocessor The relation among IC (Instruction Cycle), FC (Fetch cycle) and EC (Execute Cycle) is IC = FC - EC IC = FC + EC EC = IC + FC IC = FC + 2EC IC = FC - EC IC = FC + EC EC = IC + FC IC = FC + 2EC ANSWER DOWNLOAD EXAMIANS APP
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