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Home/ Questions/Q 196
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himanshu
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himanshu
Asked: October 12, 20192019-10-12T05:13:21+05:30 2019-10-12T05:13:21+05:30In: Computer Science

i want answers of assignment MCS-012

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i want answers of assignment MCS-012
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  1. admin
    2019-10-12T07:11:53+05:30Added an answer on October 12, 2019 at 7:11 am

    It would be better if you can post Questions for which you need answers.

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    • Banku
      2019-10-13T09:55:57+05:30Replied to answer on October 13, 2019 at 9:55 am

      Brother provide answers asap?

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    • Banku
      2019-10-13T09:53:42+05:30Replied to answer on October 13, 2019 at 9:53 am

      QI. (Covers Block 1)

      (a) Please refer to Figure 4 of Unit of Block 1 on page 11. Assuming the same machine to
      be used for execution of the following three consecutive instructions

      LOAD C Loads the content of Memory location into the Accumulator Register.
      ADD B Adds the content of memory location in the Accumulator Register
      STORE A; Stores the content of Accumulator register AC in memory location A

      The following are the details about the instructions, data and registers.
      Each word of memory is of 32 bits in length. Each instruction is also 32 bits long
      Main Memory has 256 words
      nsecutive instructions as shown above starts from memory location (IF)
      A is at location (FD) and contains a value (1000) B is at location (FE) and
      contains a value (FF3B) and C is at location (FF) and contains a value (2A2F
      The AC, IR and MBR registers are of size 32 bits, whereas PC and MAR registers are
      of size 8 bits. The initial content of PC register is (IF)

      Registers
      Draw the diagrams
      showing addresses and content of memory locations and
      Show how the content of memory locations and registers will change with the execution
      of the three instructions. Show all the addresses and values in hexadecimal notations You
      must also perform the necessary arithmetic using signed 2’s complement notation and
      show the results indicating overflow. if any. Also explain the process of execution of the
      suouanisu
      (4 Marks)

      (b) Perform the following conversion of numbers
      i) Decimal 3412454512 to binary and hexadecimal
      ii) Hexadecimal (FEDCBA9) into Octal
      iii) String “In file name % means blank. into UTF8
      iv) Octal 7766432 into Decimal

      (2 Marks)

      (c) Assuming that inverse is represented as simplify the following Boolean functions
      F ((A + B)+(A+B)

      (d) Simplify the following function using K-map: F(A., B, C, D) (0, 2681014
      Draw the circuit using NAND gates.

      (2 Marks)

      Consider the Adder-Subtractor circuit as shown in Figure 3.15 page 76 of Block 1.
      Explain how this circuit will perform subtraction, if the value of A is 1111 and B is 1100.
      You must list all the bit values including Cin and Cout and overflow condition. (1 Mark)

      Explain the functioning of a 2x Multiplexer. You must draw its truth table and explain
      its logic diagram with the help of an example input.
      (2 Marks)

      (g) Assume that a data value 111 was received as 1011. Explain how use of Hamming’s
      Error Correcting code will send this data value from source and correct error at the
      destination
      (2 Marks)

      (h) Explain functioning of S-R flip flop with the help of logic diagram, characteristic table
      and excitation table.
      (2 Marks)

      (i) Explain the functioning of Asynchronous and Synchronous counter. Explain how are
      they different from each other
      (2 Marks)

      Differentiate between fixed point numbers and floating point numbers? Explain the
      representation for Zero in IEEE 754 single precision standard. Represent (-32.25) 0 and
      00001250 in IEEE 754 single precision format.
      (2 Marks)

      Q2. (Covers Block 2)

      (a) Reference Figure 2(b) on page 8 in Unit 1 of Block 2. Draw the Internal organisation of a
      64 8 RAM. Also answer the following:
      (i) How many data input and data output lines does this RAM needs? Explain your

      answer
      (i) How many address lines are needed for this RAM? Give reason in support of your
      (2 Marks)
      answer.

      (b) A computer has 16 MB RAM and has a word size of 32 bits. It has cache memory having
      16 blocks having a block size of 64 bits. Show how the main memory address (17F0AB)
      will be mapped to cache address, if
      () Direct cache mapping is used
      (ii) Associative cache mapping is used
      (iii) Two way set associative cache mapping is used.
      You must clearly identify tag, index, main memory block address and offset etc. in your
      answer.
      (3 Marks)

      (c) Explain the process of Interrupt handling and Return from interrupt with the help of a
      diagram. You must answer this question in your own words.
      (2 Marks)

      (d) Differentiate between the working of DMA and I/O processor, Explain the DMA
      configurations and I/O channel structures

      fe Assume that a disk has 2000 tracks with each track having 256 sectors and each sector is
      of size 2M. A file having the name openUni.txt is of size 32 M. Assume that disk has 16
      free – continuous clusters of 4 sectors ench at different locations on the disk. How can this
      file be allotted space on the disk? Also show the content of FAT after the space allocation
      to this file, You may make suitable assumptions. You may assume the cluster size as 4
      sectors, if needed
      (4 Marks)

      (f) Explain the following giving their uses and advantages/disadvantages.

      (Word limit for answer of each part is 50 words ONLY)
      6) SCSI and IDE in the context of Interfaces
      Scanner and its resolution
      (iii) Scan codes in the context of keyboard
      Access time on disks
      (A) Virtual Memory
      (vi) RAID level 0.3 and 5

      (6 Marks)

      (Covers Block 3)

      (a) A computer has a single core processor having 16 General purpose registers and 4
      additional special purpose registers. The machine has 1MB RAM. The size of each
      register and memory word is 32 bits each. An instruction of the machine is of fixed
      length and is equal one memory words. Each instruction of the machine can have two
      operands one memory operand and second register operand (register operand can be in
      General
      purpose
      immediate operand only). Memory operand either uses direct addressing
      or is an
      however, register operand can use either register direct or register
      indirect addressing. (Please note that if register operand uses indirect addressing, then
      stated register contains the address of the operand in the memory.) An instruction of a
      machine consists of operation code bits, two addressing mode bit, one register operand
      and one memory operand. The addressing mode bits specifies addressing mode as:

      Addressing mode bit Register Operand Memory Operand
      00
      Indirect
      Direct
      01
      Direct
      Direct

      10

      Indirect Immediate Operand
      Direct Immediate Operand

      The special purpose registers are Program Counter (PC), Memory Address Register
      (MAR), Data Register (DR) and Flag registers (FR). The First register of the General
      purpose registers can be used as Accumulator Register. The size of Integer operands on
      the machine is 32 bits and it may be assumed to be of equal to size of accumulator
      register. In order to execute instructions the machine has an additional Instruction
      Register (IR) of size 32 bits as each instruction is of this size. Perform the following tasks
      for the machine

      ()
      Design suitable instruction formats for the machine. Specify the size of different
      fields that are needed in the instruction format. Also indicate how many different

      operations can be coded for this machine. Give reasons in support of your answer.

      (3 Marks)
      (1)
      Put some valid values in registers and memory locations and demonstrate
      examples of different addressing modes of this machine

      memory operands is brought to DR register, indirect operand is brought to
      Accumulator register: and result of operation is stored in the Accumulator
      register: write and explain the sequence of micro-operations
      fetch and execute cycles of an instruction which
      operands having addressing mode bits as 00. Please note that one of the onerand
      is Indirect Register Operand and the second is a direct
      and state suitable assumptions, if any

      that are required for
      performs subtraction of two

      memory operand. Make
      (6 Marks)

      (b) Assume that you have a machine as shown in section 3.2.2 of Block 3 having the micro-
      operations as given in Figure 10 on page 62 of Block 3. Consider that RI and R2 both are
      8 bit registers and contains 11000011 and 11100101 respectively. What will be the values
      of select inputs, carry-in input and result of operation (including
      following micro-operations are performed? (For each
      the initial value of R1 and R2 as given above)
      Add RI and R2 with carry
      Decrement RI
      (iii) Shift right R1 twice
      AND RI and R2

      carry out bit) if the
      micro-operation you may assume

      (2 Marks)

      (iv)

      (c) What is the role of Control Signal in execution of an Instruction? Block 3, page number
      68-70, explains the timing sequence for execution of ISZ instruction. Explain execution
      of an ADDITION instruction with the help of micro-operations and timing sequence.

      (3 Marks)

      (d) What is the role of micro-programmed control Unit? How a micro-program is executed?
      Explain with the help of a diagram.

      (2 Marks)

      (e) List and explain the characteristics of RISC machines. A RISC machine has 256 registers
      out of which 64 registers are reserved for the Global variables and 64 for Instruction
      related tasks. This machine has been designed to have 12 registers for storing three input
      parameters, three output parameters and six local variables for a function call. Explain
      with the help of a diagram, how the overlapped register window can be implemented in
      this machine for function/procedure calls. You must explain how the parameters will be
      passed when a function calls another function. How
      a machine can support?

      many levels of procedural calls, such
      (3 Marks)

      Q4. (Covers Block 4)

      (a) Write a program using 8086 assembly Language (with proper comments) that accepts an
      input of ten characters from the keyboard and store them in the memory. It then converts
      all the lower case alphabets of this stored
      assumptions, if any.

      string to uppercase alphabets. Make suitable

      (7 Marks)

      (b) Write a program using 8086 assembly Language (with proper comments) that find the
      sum and average of 10 byte numbers stored in two different arrays of size 5 each.

      (c) Explain the following in the context of 8086 Microprocessor

      (7 Marks)
      (6 Marks)

      Use of Segment Registers
      Use of Interrupts in Input/output

      (iii)

      .com and exe programs

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    • Himanshu
      2019-10-13T12:12:30+05:30Replied to answer on October 13, 2019 at 12:12 pm

      i want answer for question 1of block 1. Please provide me answer ASAP.

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      • admin
        2019-10-22T09:01:36+05:30Replied to answer on October 22, 2019 at 9:01 am
        i want answers of assignment MCS-012

        Here is the answer.

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  2. smilymalhotra
    2019-10-13T06:36:41+05:30Added an answer on October 13, 2019 at 6:36 am

    hye did you get MCS 12 answers

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    • Himanshu
      2019-10-13T12:13:45+05:30Replied to answer on October 13, 2019 at 12:13 pm

      No buddy, i’m still waiting for it. if u get the answers please inform…

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      • smilymalhotra
        2019-10-14T02:36:03+05:30Replied to answer on October 14, 2019 at 2:36 am

        i am also not bale to get answers….
        can you provide me the answer of ques 2 of MCSL-017?

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        • Himanshu
          2019-10-15T12:35:16+05:30Replied to answer on October 15, 2019 at 12:35 pm

          hey, i didn’t seen MCS-17 subject at registration form even when i fill the examination form MCS-17 is not there. did u have any idea about this. please inform. and i didn’t solve any of question for MCS-17. please confirm about it

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          • smilymalhotra
            2019-10-18T01:37:51+05:30Replied to answer on October 18, 2019 at 1:37 am

            yeh its MCSL-017 its a lab subject..means its a practical subject

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        • Banku
          2019-10-19T11:22:37+05:30Replied to answer on October 19, 2019 at 11:22 am

          Hey r u done with MCSL 016 and MCSL 017
          Please provide answers

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