Memory(RAM ROM FLASH MEMORY)

4,095 views

Published on

Its all about Memory

Published in: Education, Technology, Business
0 Comments
4 Likes
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
4,095
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
190
Comments
0
Likes
4
Embeds 0
No embeds

No notes for slide

Memory(RAM ROM FLASH MEMORY)

  1. 1. Presented To: Miss Nusrat Presented By: Sameea Mahmood Kiran Zulfiqar Mubashra Tajamul
  2. 2. MEMORY <ul><li>Please send the data in slot number. </li></ul><ul><li>10011101100001001111101100101 </li></ul><ul><li>Ok, here it comes. </li></ul><ul><li>01001100 </li></ul>CPU RAM
  3. 3. &quot;INTRODUCTION&quot; <ul><li>Consists one or more chips on the motherboard. </li></ul><ul><li>Data and instructions are stored to execute. </li></ul><ul><li>Primary storage device. </li></ul>ROM (nonvolatile) Motherboard CPU RAM ( volatile )
  4. 4. MEMORY (RAM) HARD DISK COMPACT DISK FLOPPY DISK TAPE More expensive Cost Less expensive Faster Speed Slower DIAGRAM:
  5. 5. &quot;TYPES OF MEMORY&quot; <ul><li>Temporary Memory (RAM) </li></ul><ul><li>Permanent Memory (ROM) </li></ul>
  6. 6. &quot; TEMPORARY MEMORY &quot; <ul><li>Chips on a small circuit board </li></ul><ul><li>Entire memory directly accessible </li></ul><ul><li>Program load in RAM before execution </li></ul>
  7. 7. <ul><li>Volatile memory </li></ul><ul><li>Play important role in processing speed </li></ul><ul><li>Bigger RAM = Large capacity to save data </li></ul><ul><li>Smallest RAM = Low capacity to save data </li></ul><ul><li>Measured in Bytes </li></ul><ul><li>Change data during execution </li></ul><ul><li>Lose its contents when computer is turned off </li></ul>Characteristics:
  8. 8. &quot;TYPES OF RAM&quot; <ul><li>DRAM (Dynamic RAM) </li></ul><ul><li>SRAM (Static RAM) </li></ul>CPU CACHE MEMORY MAIN MEMORY
  9. 9. &quot; DIFFERENCE &quot; <ul><li>It is less complex & more compact </li></ul><ul><li>It is more complex & less compact </li></ul><ul><li>It utilizes low power </li></ul><ul><li>It utilizes more power </li></ul><ul><li>it is less expensive </li></ul><ul><li>It is more expensive </li></ul><ul><li>It is slower </li></ul><ul><li>It is faster </li></ul>DRAM SRAM
  10. 10. &quot;FLESH MEMORY&quot; <ul><li>Non-volatile </li></ul><ul><li>Portable device </li></ul><ul><li>Intelligent device </li></ul><ul><li>A camera with a flesh card, picture </li></ul><ul><li>stored on a card by turning millions of switches on </li></ul><ul><li>& off </li></ul>
  11. 11. &quot;UNIVERSAL SERIAL BUS PORT&quot; <ul><li>Faster port </li></ul><ul><li>Also called Pen device </li></ul><ul><li>Computer have one or two USB port </li></ul><ul><li>Multiple devices attached to USB through daisy chain </li></ul><ul><li>Alternate to daisy chain USB hub </li></ul><ul><li>Original hub port could transfer data at only 12Mbps </li></ul>USB PORT CONNECT WITH Printer, Scanner, Keyboard, H.D.D
  12. 12. &quot;COMPARISION&quot; <ul><li>Non intelligent device </li></ul><ul><li>Intelligent device </li></ul><ul><li>Not accept binary no </li></ul><ul><li>Accept binary no </li></ul><ul><li>Small size </li></ul><ul><li>Large size </li></ul><ul><li>No switches </li></ul><ul><li>Have switches </li></ul><ul><li>Portable </li></ul><ul><li>Portable </li></ul>USB FLASH MEMORY
  13. 13. &quot;PARMANENT MEMORY&quot; <ul><li>Small set of instructions </li></ul><ul><li>Non-volatile </li></ul><ul><li>instructions in ROM prepare computer for use </li></ul>
  14. 14. <ul><li>Do not change data during execution </li></ul><ul><li>Store data & instructions permanently </li></ul><ul><li>Does not lose its contents when </li></ul><ul><li>computer is turned off </li></ul><ul><li>Only read & use data </li></ul>Characteristics:
  15. 15. &quot;TYPES OF ROM&quot; <ul><li>PROM ( Programmable ROM ) </li></ul><ul><li>EPROM ( Erasable PROM ) </li></ul><ul><li>EEPROM ( Electrically EPROM ) </li></ul>
  16. 16. &quot;DIFFERENCE&quot; <ul><li>It provides more usability as instruction are written many time </li></ul><ul><li>It provides less usability as instruction are written only once </li></ul><ul><li>User can write instructions many times </li></ul><ul><li>user can write instructions only once </li></ul><ul><li>Electronically programmable memory </li></ul><ul><li>Programmable memory </li></ul>EPROM PROM
  17. 17. &quot;DIFFERENCE&quot; <ul><li>Instructions are written into ROM at manufacturing time </li></ul><ul><li>Instructions are written into the RAM at the time of execution </li></ul><ul><li>Data cannot be changed or deleted </li></ul><ul><li>Data can be changed or deleted </li></ul><ul><li>Instructions written in ROM can only be read </li></ul><ul><li>RAM enables data read & write to memory </li></ul><ul><li>Permanent memory </li></ul><ul><li>Temporary memory </li></ul>ROM RAM
  18. 18. &quot;QUERIES&quot; HAVE YOU ANY QUESTIONS ABOUT MEMORY?

×