Q. Consider the following statements about 8085

1. The instruction LDA uses direct addressing mode.
2. The instruction MVI uses direct addressing mode.
3. The instruction MVI uses immediate addressing mode.
4. The instruction LDA uses immediate addressing mode.

Which of the above are correct?

View solution

Q. Consider the directive T : DS105. This directive

View solution

Q. Which of the following is not a valid logical expression in Pascal?

View solution

Q. Which of the following instructions in 8085 does not belong to data transfer group?

View solution

Q. For Disk partitioning th DOS command is

View solution

Q. In 8085 the instruction MOV A, M is an example of

View solution

Q. Assertion (A): Magnetic tape can be accessed only sequentially.

Reason (R): Magnetic tape consists of magnetised spots or tracks.

View solution

Q. Assertion (A): Most PCs use static RAM for main memory.

Reason (R): Static RAM is faster than dynamic RAM.

View solution

Q. Consider the following statements

1. A 33 MHz 486 has higher MIPS than 33 MHz 386.
2. A 33 MHz 486 has higher MFLOPS than 33 MHz 386

of these statements.

View solution

Q. Assertion (A): Microprocessor 8085 has 16 address bus lines and 8 data bus lines.

Reason (R): Address bus in 8085 is unidirectional.

View solution

Q. IC 74181 has two select lines.

View solution

Q. Plug and play is a hardware specification.

View solution

Q. If the absolute value of a number is less than decimal 1, the sign of exponent in floating point representation is

View solution

Q. Which of the following is not a library string function in C?

View solution

Q. Assertion (A): A two byte instruction of 8085 has an operation code in first byte and operand / address in the second byte.

Reason (R): If an instruction is too long it is possible to reduce its length by a number of methods.

View solution

Q. In computers the size of secondary memory is usually much larger than that of primary memory.

View solution

Q. In 8085

View solution

Q. Which of the following directives in 8085 causes two bytes to be reserved in the memory?

View solution

Q. In 8086 the flag which enables or disables external interrupts is

View solution

Q. Which of the following is a valid integer variable in Fortran 77?

View solution