c.a.o complete lectures

http://www.4shared.com/file/oGqS7ZS6/cao.html


Regards
Shoaib Ahmed khan

NEW DATES

PC 14-jnue-2010



AUTOMATA 11-june-2010

datacommunication

What is Normalization?

Normalization is the process of efficiently organizing data in a database. There are two goals of the normalization process: eliminating redundant data (for example, storing the same data in more than one table) and ensuring data dependencies make sense (only storing related data in a table). Both of these are worthy goals as they reduce the amount of space a database consumes and ensure that data is logically stored.

The Normal Forms

The database community has developed a series of guidelines for ensuring that databases are normalized. These are referred to as normal forms and are numbered from one (the lowest form of normalization, referred to as first normal form or 1NF) through five (fifth normal form or 5NF). In practical applications, you'll often see 1NF, 2NF, and 3NF along with the occasional 4NF. Fifth normal form is very rarely seen and won't be discussed in this article.

Before we begin our discussion of the normal forms, it's important to point out that they are guidelines and guidelines only. Occasionally, it becomes necessary to stray from them to meet practical business requirements. However, when variations take place, it's extremely important to evaluate any possible ramifications they could have on your system and account for possible inconsistencies. That said, let's explore the normal forms.

First Normal Form (1NF)

First normal form (1NF) sets the very basic rules for an organized database:

• Eliminate duplicative columns from the same table.
• Create separate tables for each group of related data and identify each row with a unique column or set of columns (the primary key).

Second Normal Form (2NF)

Second normal form (2NF) further addresses the concept of removing duplicative data:

• Meet all the requirements of the first normal form.
• Remove subsets of data that apply to multiple rows of a table and place them in separate tables.
• Create relationships between these new tables and their predecessors through the use of foreign keys.

Third Normal Form (3NF)

Third normal form (3NF) goes one large step further:

• Meet all the requirements of the second normal form.
• Remove columns that are not dependent upon the primary key.

Fourth Normal Form (4NF)

Finally, fourth normal form (4NF) has one additional requirement:

• Meet all the requirements of the third normal form.
• A relation is in 4NF if it has no multi-valued dependencies.

Remember, these normalization guidelines are cumulative. For a database to be in 2NF, it must first fulfill all the criteria of a 1NF database.

kj stuff

kj stuff is uploaded in 5th semester> datacommunication (kj ) section

CCNA

data communication bOOk

Data Communications and Networking 4th edition by Behrouz A Forouzan.djvu

NETWORKING

networking complete slide link















http://www.4shared.com/file/FLh7s8Aa/_2__networking_complete_slides.html

MUST SEE

Sunday night's storm hitting Burj Khalifa


WHY WE NEED LIGHTNING ARRESTER? KINDLY LOOK THE PICTURE AND SEE HOW THE LIGHTNING ARRESTER SAVES THE TOWER.



It's all happening in Dubai ....spectacular photos of last night's storm...

When lightning hit the world's tallest tower! For as long as half hour lightning hit the tower and the thunder sounded all over the neighouring areas! An unforgettable night! THIS IS U.A.E. – Anything can be happen to anyone.

AUTOMATA ASSIGNMENT

ENGLISH PAPER PATTERN

ENGLISH PAPER pattern

Word derivative
synonyms
Antonyms
Paragraph writing
Types of sentence
Active passive
Narration
Crossword puzzle
Article
Preposition
Making setences
Redding comprehension
Correction of verb
Translation


MISS ERUM SHAHID section B

S.A.D MARKS DITRIBUTION

S.A.D MARKS DITRIBUTION


TOTAL MARKS : 100

LABS =20
*5 marks for report.
*5 marks for Q/A.
*5 marks for presentation.
*5 marks alredy given.
THEORY =80
*30 marks for quizes.
*50 marks for final paper.
*SECTION A
choose the best answers.
*SECTION B
ER-diagrams,use case and senarios.

**NOTE :
SECTION C only for those students who missed their quizes or they have low marks.
if any body has attmpt all quizs.
thn there is no need to attempt Sec C.
the best 3 wil b count.

A.I MANUAL

http://www.4shared.com/document/IFBrYOLi/Solution_Manual_Artificial_Int.html

FINAL PAPER s>>====>>

13-05-2010 ENGLISH.


13-05-2010 ENGLISH.
17-05-2010 NETWORKING(SAK).
19-05-2010 ASSEMBLY.
20-05-2010 THEORY OF COMPUTER SCIENCE(Tj).
25-05-2010 DATA COMMUNICATION (Kj).
28-05-2010 COMPUTER ARCHITECTURE AND ORGANIZATION (Hb).
31-05-2010 INTRODUCTION TO COMPUTER SCIENCE .
02-06-2010 ARTIFICIAL INTELLIGENCE(Nm).
07-06-2010 SYSTEM ANALYSIS AND DESIGN(UQ).

SAD

Assalamoalikum Class,

Please read/go through the slides 16-58 of Chapter 2 : " Understanding Organizational Style and its Impact on Information Systems" as well as from the Course Book (relevant topics) for the quiz on Monday 12th April,2010.

Also please find the attached "Quiz 4" with answers for your records.


Regards,
Umair Qureshi


source : http://groups.yahoo.com/group/CSKU2008-2011a/message/732

SAD class

Assalamualikum

Sir Umair Qureshi will not be able to take class tomorrow.
He will be taking class on Monday 9:00 AM.

Regards,
Arsalan Shahid

codes for cell phone

http://www.4shared.com/document/2PU0VV-3/unlock_codes_for_mobile_phones.html