75851. In 8085 the time required to add two 32 bit numbers is (if clock frequency is 5 MHz)
75852. DMA stands for
75853. 8085 data bus has 8 lines and is bidirectional.
75854. It is difficult to write a program in a machine language.
75855. A string variable in Basic is
75856. RESET OUT signal when high indicates that
75857. If X = 2.5 and Y = 2.5, which of the following expressions would give the result as 5/7?
75858. Which of the following is not a classification of programmed data transfer?
75859. Consider the instructions
MOV M, B
OUT 4
LDA X
Which of the above uses IO/W cycle?
75860. One can format a disc using window explorer.
75861. Which of the following identifiers is valid in Pascal?
75862. DMA stands for direct memory access.
75863. - 56 is not a valid real constant in Fortran.
75864. For the infix expression (A/B) (C F + (A - D) E) the corresponding Post fix notation is
75865. A PC has typically
75866. The point on the celestial sphere exactly above the observer’s station is known as:
75867. Consider the following ON GO TO statement in Basic 45 ON C GO TO 10, 20, 30 If the values of C are 1, 2, 3, 2.6 the control will be transferred to statement number
75868. Consider the following about 'return' statement in C On executing the return statement, it immediately transfers the control back to the calling program.There is no restriction on the number of 'return' statements present in a function.The 'return' statement must be present at the end of called function. Which of the above are correct?
75869. For an accurate clock period in 8085 it is preferable to use
75870. The memory hierarchy in microprocessor based system is
75871. When a peripheral device is not ready for data transfer it will send to the microprocessor a
75872. Assertion (A): In microprocessor 8085 DMA allows direct access to memory to speed up data transfer.Reason (R): HOLD and HLDA signals are used for DMA operations.
75873. Which of the following is not a valid variable in FORTRAN 77?
75874. The expression A B / C + D is equivalent to
75875. Consider the following symbolsLetters A to Z and a to zDigits 0 to 9Logical operators and, or, notParenthesis ( ) Which of the above symbols are available in Pascal?
75876. Which of the following 8085 instructions does not belong to arithmetic group?
75877. In which of the following 8085 instructions is the 8 bit number in accumulator adjusted to form two four bit BCD numbers
75878. In 8085 the address space size is
75879. In 8085 the instruction MOV A, B is an example of
75880. Pagemaker is an application software for DTP.
75881. Assertion (A): Logical group of instructions contains instructions for logic operations.Reason (R): Data transfer group instruction is basically a copying instruction.
75882. Assertion (A): C allows the use of logical operators, AND, OR, NOT.Reason (R): C has logical operators as well as bitwise operators like AND, OR etc.
75883. The read and write cycle times of cache memory are in the range of
75884. In 8086
75885. In which of the following logical group instructions of 8085 do the contents of accumulator remain unchanged?
75886. If quadratic equation x2 - 1000x + 25 = 0 is solved using floating point arithmetic with 4 digit mantissa, the roots are
75887. In 8085 the data is stored in the stack on
75888. The organisatioion of Intel memory chip 127256 is
75889. In a micro computer the control bus
75890. Read the following statements about time and space requirements of microprocessors Space requirement is also known as memory requirement.Space requirement is expressed in terms of bytes.Time requirement is expressed in terms of states.Time requirement is expressed in terms of μ- s. Which of the above statements are correct?
75891. Assertion (A): Microprocessor 8085 has facility of interrupt control.Reason (R): TRAP, RST 7.5, RST 6.5, RST 5.5 and 1NTR are interrupt signals in 8085.
75892. Which characteristics of a memory chip is called dc characteristics?
75893. RAM is a volatile memory device.
75894. Consider the following strings AZ2X3YP12RBX Which of the above strings are valid in Pascal?
75895. Consider the following statementsIn 8085 address and data buses are multiplexed.In Z 80 address and data buses are multiplexedIn Z 80 address and data buses are not multiplexed.Z 80 has 16 bit address bus and 8 bit data bus. Which of the above statements are correct?
75896. The stack pointer holds the address of the desired memory location.
75897. Assertion (A): Microprocessor 8085 has 16 address bus lines and 8 data bus lines.Reason (R): Address bus in 8085 is unidirectional.
75898. IC 74181 has two select lines.
75899. Plug and play is a hardware specification.
75900. If the absolute value of a number is less than decimal 1, the sign of exponent in floating point representation is
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