Friday 12 June 2015

Q43,Paper3, D13.What is the bit rate for transmitting uncompressed 800 ×600 pixel colour frames with 8 bits/pixel at 40 frames/second ?



(A) 2.4 Mbps
(B) 15.36 Mbps
(C) 153.6 Mbps
(D) 1536 Mbps

Answer B
Explanation.
1 frame = 800x600 pixels.
1 pixel is represented by 8 bits.
1 frame is represented by 800x600x8 bits.
Total bits in 40 frames= 40*800*600*8bits=40*8*100*6*100*8= 40x8x6x8 kb.
=40*2^3*6*2^3kb. Approx  240*2^6kb=2^14KB= 16*kb*kb= 16mb/s
Posted by at

10 comments:

  1. Sachin Chandora26 December 2015 at 11:01

    Its wrong... How you removed 100*100 by Kb.
    Where is Kb should be 1000 byte or 1024 bytes...

    ReplyDelete
  2. Sachin Chandora26 December 2015 at 11:05

    Its wrong... How you removed 100*100 by Kb.
    Where is Kb should be 1000 byte or 1024 bytes...

    ReplyDelete
  3. Unknown9 January 2017 at 17:31

    yes answer is c

    ReplyDelete
  4. Unknown6 February 2017 at 17:00

    SORRY C IS RIGHT ANSWER 153.6
    800*600*8*40 = 153600000
    153600000/1000 = 153600 Kbps
    153600/1000=153.6 Mbps

    ReplyDelete
  5. Unknown6 February 2017 at 17:03

    SORRY C IS RIGHT ANSWER 153.6
    800*600*8*40 = 153600000
    153600000/1000 = 153600 Kbps
    153600/1000=153.6 Mbps

    ReplyDelete
    Replies
    1. Unknown20 October 2018 at 21:27

      why we divide twice time by 1000

      Delete
    2. Unknown15 December 2018 at 13:21

      Firsty for converting bps into kbps and secondly for converting kbps into Mbps..

      Delete
    3. Unknown15 December 2018 at 13:22

      Firsty for converting bps into kbps and secondly for converting kbps into Mbps..

      Delete
  6. Unknown12 October 2018 at 18:48

    Yes c is the right ans

    ReplyDelete
  7. Ummar25 January 2020 at 17:23

    800*600*8*40=153600000
    now convert it into Mbs 153600000/(1000000)
    =153.6Mb

    ReplyDelete

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