Hardware Memory
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Hardware Memory

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A complete guide providing useful knowledge and tips on hardware and its memory

A complete guide providing useful knowledge and tips on hardware and its memory

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  • 1.  
  • 2. INTRODUCTION
  • 3. CLASSIFICATION OF MEMORY
  • 4. SRAM
  • 5. DRAM
  • 6. WORKING MEMORY MODEL
  • 7. LEVELS OF PROCESSING
  • 8. RANDOM ACCESS MEMORY(RAM) 1 GB DDR 2 RAM
  • 9. HIERARCHY OF STORAGE
  • 10. STORAGE CLASSIFICATION
  • 11. PRIMARY STORAGE
  • 12. SECONDARY STORAGE A HARD DISK
  • 13. TERTIARY STORAGE A TAPE LIBRARY Tertiary storage or tertiary memory , [2] provides a third level of storage. Typically it involves a robotic mechanism which will mount (insert) and dismount removable mass storage media into a storage device according to the system's demands
  • 14. OFF-LINE STORAGE Off-line storage , also known as disconnected storage , is a computer data storage on a medium or a device that is not under the control of a processing unit . [3] The medium is recorded, usually in a secondary or tertiary storage device, and then physically removed or disconnected .
  • 15. CHARACTERISTICS OF STORAGE Storage technologies at all levels of the storage hierarchy can be differentiated by evaluating certain core characteristics as well as measuring characteristics specific to a particular implementation
  • 16. FUNDAMENTAL STORAGE TECH
  • 17. SEMICONDUCTOR & MAGNETIC Semiconductor memory uses semiconductor -based integrated circuits to store information. A semiconductor memory chip may contain millions of tiny transistors or capacitors . Both volatile and non-volatile forms of semiconductor memory exist . Magnetic storage uses different patterns of magnetization on a magnetically coated surface to store information. Magnetic storage is non-volatile . The information is accessed using one or more read/write heads which may contain one or more recording transducers.
  • 18. OPTICAL Optical storage , the typical Optical disc , stores information in deformities on the surface of a circular disc and reads this information by illuminating the surface with a laser diode and observing the reflection . CD , CD-ROM , DVD , Blu-ray Disc , HD DVD : Read only storage, used for mass distribution of digital information (music, video, computer programs) CD-R , DVD-R , DVD+R : Write once storage, used for tertiary and off-line storage CD-RW , DVD-RW , DVD+RW , DVD-RAM : Slow write, fast read storage, used for tertiary and off-line storage
  • 19. PAPER
  • 20. UNCOMMON METHODS
  • 21.