Microprocessor Program counter in a digital computer Counts the numbers of programs run in the machine. Counts the number of times the loops are executed. Counts the number of times a subroutine is called. Points the memory address of the next instruction to be fetched. Counts the numbers of programs run in the machine. Counts the number of times the loops are executed. Counts the number of times a subroutine is called. Points the memory address of the next instruction to be fetched. ANSWER DOWNLOAD EXAMIANS APP
Microprocessor In 8086 the number of bytes which can be addressed directly is about one million 100000 1000 10000 one million 100000 1000 10000 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Which one of the following ICs is used to interface keyboard and display? 8253 8279 8251 8259 8253 8279 8251 8259 ANSWER DOWNLOAD EXAMIANS APP
Microprocessor DS directive in 8085 None of these Forces the assembler to reserve a specified number of consecutive bytes in the memory Forces the assembler to reserve a specified number of bytes in the memory Forces the assembler to reserve one byte of memory None of these Forces the assembler to reserve a specified number of consecutive bytes in the memory Forces the assembler to reserve a specified number of bytes in the memory Forces the assembler to reserve one byte of memory ANSWER DOWNLOAD EXAMIANS APP
Microprocessor CALL instruction is a ______ instruction. 2 bytes 1 bytes 4 bytes 3 bytes 2 bytes 1 bytes 4 bytes 3 bytes ANSWER DOWNLOAD EXAMIANS APP
Microprocessor Which of the following is not true during the execution of an interrupt service routine, which does not contain any EI instructions the microprocessor can be interrupted by a non-mask able interrupt the microprocessor cannot be interrupted by any mask able interrupt all interrupts except non-maskable interrupt are disabled the microprocessor cannot be interrupted by any interrupt the microprocessor can be interrupted by a non-mask able interrupt the microprocessor cannot be interrupted by any mask able interrupt all interrupts except non-maskable interrupt are disabled the microprocessor cannot be interrupted by any interrupt ANSWER DOWNLOAD EXAMIANS APP
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