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Tips And Tips Computer Organisation


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Tips and Tricks Computer Organisation krishna kumar bohra LMCST Lachoo Memorial College of Science and Technology

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Tips And Tips Computer Organisation

  1. 1. Tips<br />Tips<br />Tips<br />Tips<br />Tips<br />Tips<br />Tips and Tips - Computer Organisation<br />Krishna Kumar Bohra (KKB), MCA LMCST<br /><br />
  2. 2. Q is denoted as Outputq is denoted as Previous Output0<br />“Disc” means standalone (example: platter, disc inside floppy,…) [IEEE standard]“Disk” means a total unit (eg: Hard disk)<br />“Charge” means active electron<br />Krishna Kumar Bohra (KKB), MCA LMCST<br /><br />
  3. 3. Capacitors (NVRAM) are having life of <br />11 years<br />Optimization of System is only when<br /> RAM is 1/3rd of CPU Speed<br />We can go for 26 partition of any HDD. (maximum)<br />Krishna Kumar Bohra (KKB), MCA LMCST<br /><br />
  4. 4. Blank ROM always contain One<br />Speed of Magnetic tap of moving 4.75cm/sec.<br />A study current following in a coil is biased current<br />Krishna Kumar Bohra (KKB), MCA LMCST<br /><br />
  5. 5. 1 sector of floppy disc contain 500 bytes<br />Floppy rotates at 360 rpm<br />Unformatted Floppy Disc having &gt;2 MB space <br />Krishna Kumar Bohra (KKB), MCA LMCST<br /><br />
  6. 6. After formatting it will having 1.44 MB (loss of .8MB)<br />CD’s X means 150 Kbps DVD’s X means 1.38 MBps<br />Capacity of Magnetic Drum is 512 bytes (not confirmed)<br />Krishna Kumar Bohra (KKB), MCA LMCST<br /><br />
  7. 7. DDR 1 266DDR 2 333DDR 4 538DDR 5 733<br />Sector before <br />formatting<br />Density of inner most circle and outer most is equal<br />Space where <br />data is <br />actually <br />stored<br />Sector after <br />logical formatting<br />Krishna Kumar Bohra (KKB), MCA LMCST<br /><br />
  8. 8. Mechanism of Write Protect Notch :<br />Light is passing <br />it means permitted to write <br />Light is not passing <br />it means not permitted to write<br />Krishna Kumar Bohra (KKB), MCA LMCST<br /><br />
  9. 9. Now a Days Paper disc has been launched working on Blu Ray tech.<br />Cache is directly proportional <br />to addressing line of CPU<br />Itanium advanced to Pentium (64 bit processor)<br />Krishna Kumar Bohra (KKB), MCA LMCST<br /><br />
  10. 10. 733 MB RAM is available (Max.)<br />1 clock diff. -- Cache3 clock diff. -- RAM(as compared to CPU) <br />Secondary Memory is not directly related to CPU But it is related to IO Processor<br />Krishna Kumar Bohra (KKB), MCA LMCST<br /><br />
  11. 11. Path of Program:HDD ---- RAM ---- Cache ---- Register(it means 5 instance of program is being created)<br />733 MB RAM is available (Max.)<br />There are total 256 interrupts :1-16 internal defined 80 documented <br />above that rest all are undocumented<br />Krishna Kumar Bohra (KKB), MCA LMCST<br /><br />
  12. 12. Latest FSB is available 933 FSB<br />Latest Cache is available L3<br />We can not speed up the system’s speed <br />by increasing RAM of system,<br /> But by that the speed of System <br />does not goes down <br />(it means it is maintained)<br />Krishna Kumar Bohra (KKB), MCA LMCST<br /><br />
  13. 13. There is no physical connection<br />between tape and coil (Head)<br />Current will be generated in the coil <br />When magnetic tape moves than magnetic field produces induced EMF <br />Krishna Kumar Bohra (KKB), MCA LMCST<br /><br />
  14. 14. WORM: Write One Read Many<br />WMRM: Write Many Read Many<br />Blu ray (paper disc) capacity in GBs<br />First cd is from SONY of 640 MB<br />(size is 640 due to some reasons)<br />Krishna Kumar Bohra (KKB), MCA LMCST<br /><br />
  15. 15. When magnetic tape moves than magnetic field produces induced EMF<br />TAO : Track At Once<br />DAO : Disc At Once<br />44.1 KHz PCM is for AUDIO<br />(pulse code modulation)<br />Krishna Kumar Bohra (KKB), MCA LMCST<br /><br />