Explain differance between primary and secondary storage, Database Management System

Assignment Help:

Explain differance between Primary and secondary storage ?

  • Primary and secondary storage

Computer storage is classified within primary(main) memory and secondary(peripheral) storage.
a) Primary storage is commonly RAM; ~10ns access time
b) Secondary storage is commonly hard disk drives; ~10ms access time
c) Secondary storage is a lot cheaper than primary, 3¢/Mb vs.$1/Mb.

  • Secondary storage is persistent

a) Databases are stored in secondary memory, and large databases are manipulated in secondary storage.
b) We required minimising disk accesses while accessing and manipulating databases.


Related Discussions:- Explain differance between primary and secondary storage

Adjustments are required to increase chances of inheritance, What types of ...

What types of adjustments are required to increase chances of inheritance. a)   Some attributes can be added or ignored in  the base class operation  b) Some changes can be

What you understand by client-server environment, Problem: a) Briefly d...

Problem: a) Briefly describe what you understand by Client-Server environment b) The File Server is a simple form of Client-Server. Describe the principles of the File Serve

What is object identity, What is object identity? An object retains its...

What is object identity? An object retains its identity even if some or all the values of variables or explanations of methods change overtime.

Define the term- control as state within program, Control as State within P...

Control as State within Program 1.  The term control exactly means to check effect of input within a program. For illustration, in Figure, after the ATM card is inserted (a

In which relational modes cardinality is termed, In which relational modes,...

In which relational modes, cardinality is termed? Answer : Cardinality is termed in a number of tuples relational modes.

Find a 3nf decomposition , Find a 3NF decomposition of the following relati...

Find a 3NF decomposition of the following relation scheme: University (Faculty, Dean, Department, Chair, Professor, Rank, Student}. The University relation satisfies the following

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