What is typical storage hierarchy, Computer Engineering

Assignment Help:

Q. What is typical storage hierarchy?

A typical storage hierarchy is displayed in Figure above. Though Figure shows only block diagram however it includes storage hierarchy:   

Register

Cache memory

Main memory

Secondary Storage and 

Mass Storage. 

As we move up hierarchy we encounter storage elements which have faster access time and higher cost per bit stored as well as slower access time as a result of moving down hierarchy. So cache memory normally has the fastest access time and the smallest storage capacity as well as the highest cost per bit stored. Primary memory (main memory) falls next in storage hierarchy list. On-line, direct-access secondary storage devices like magnetic hard disks make up level of hierarchy just below main memory. Off-line, direct-access and sequential access secondary storage devices like magnetic tape, ZIP disk, Floppy disk and WORM disk etc. fall next in storage hierarchy. Mass storage devices generally referred to as archival storage are at the bottom of storage hierarchy. They are cost-effective for storage of very large quantities of data when fast access time is not essential.

Please note two significant points here: 

  • Size of memory increases as we move down hierarchy.
  • Quantum of data which is transferred between two consecutive memory layers at a time also increases as we go from a higher to lower side. For illustration from main memory to Cache transfer one or a few memory words are accessed at a time while in a hard disk to main memory transfer, a block of about 1 Megabyte is transferred in a single access.

 


Related Discussions:- What is typical storage hierarchy

Define usb, Define USB. The Universal Serial Bus(USB) is an industry st...

Define USB. The Universal Serial Bus(USB) is an industry standard developed to give two speed of operation known as low-speed and full-speed. They provide simple, low cost and

Explain the concept of thread, The Concept of Thread A thread is a sequ...

The Concept of Thread A thread is a sequential flow of control within a process. A process is able to have one or more threads. Threads have their own register-values and progr

Explain about different types of mice, Q. Explain about different types of ...

Q. Explain about different types of Mice? Mice can be classified on the foundation of numbers of buttons, position sensing technology or type of Interface:  Sensing Technol

Explain the concept of switching, Question: (a) A computer network can...

Question: (a) A computer network can be a LAN or a WAN. Using appropriate diagrams and examples, explain what you understand by the term LAN. Your answer should also explain

Explain automated and manual systems, Q. Explain Automated and Manual syste...

Q. Explain Automated and Manual systems? Automated and Manual systems: The system that doesn't need human intervention is known as'Automated system'. In this system whole proce

Technology impact on job design - information system, Technology impact on ...

Technology impact on job design - Information System The implementation of technology into work has had a significant impact on the types and content of job that are now avail

Find how many bits of adc are required to get an resolution, Find how many ...

Find how many bits of ADC are required to get an resolution of 0.5 mV if the maximum full scale voltage is 10 V Ans. Given Resolution=.5mV Full scale output=+10v %resolut

What is serialization, What is serialization, how it works in .NET? Ser...

What is serialization, how it works in .NET? Serialization is when you persist the state of an object to a storage medium so an exact copy can be re-created at a later stage. S

What is a rendezvous point?, You insert rendezvous points into Vuser script...

You insert rendezvous points into Vuser scripts to imitate heavy user load on the server. Rendezvous points instruct Vusers to wait during test implementation for multiple Vusers t

Find out the 2's complement of 1101110, The 2's complement of the number 11...

The 2's complement of the number 1101110 is ? Ans. 1's complement of 1101110 is = 0010001 ans hence 2's complement of 1101110 is = 0010001 + 1 = 0010010.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd