AMIE INDIA Students Forum

[ishusharma]

for java books refer this site
http://www.java-books.us

[ishusharma]

material science video lectures on you tube
http://www.youtube.com/watch?v=b4jvpYxx ... playnext=1

[ishusharma]

E-mails

Examination: exams@ieindia.org
Members Service: pro@ieindia.org
Technical: technical@ieindia.org
Journals: journals@ieindia.org
International Matter: intnl@ieindia.org
Membership: membership@ieindia.org
Commercial: commercial@ieindia.org
Finance: finance@ieindia.org
Council Matters: caffairs@ieindia.org

[ishusharma]

amie correspondence address
Address:

The Institution of Engineers (I),
8 Gokhale Road, Kolkata-700020

Contact Nos:

033-22238311/22238314/22238316

[ishusharma]

Recommended Books As Per New Syllabus Effective Summer 2005, Section-A(Diploma)
ISBN Book Title Author Edition Price(Rs.)
81-86321-92-6 Fundamentals of Design and Manufacturing
R.S.Vaishwanar 3rd Ed.,2007 165.00
81-8360-013-1 Material Science and Engineering
I.P. Singh, Subhash Chander 4th Rev.Ed.,2007 150.00
81-8360-015-8 Society and Environment
A.S.Chauhan 6th Rev.Ed.,2007 150.00
81-8360-016-6 Computing and Informatics
Chandwani,Jain Chandwani 3rd Ed.,2007 150.00

[ishusharma]

in my this post i m just giving the basic idea of computer architecture

In computer science, computer architecture or digital computer organization is the conceptual design and fundamental operational structure of a computer system. It is a blueprint and functional description of requirements and design implementations for the various parts of a computer, focusing largely on the way by which the central processing unit (CPU) performs internally and accesses addresses in memory.
It may also be defined as the science and art of selecting and interconnecting hardware components to create computers that meet functional, performance and cost goals.
Computer architecture comprises at least three main subcategories:[1]
Instruction set architecture, or ISA, is the abstract image of a computing system that is seen by a machine language (or assembly language) programmer, including the instruction set, word size, memory address modes, processor registers, and address and data formats.
Microarchitecture, also known as Computer organization is a lower level, more concrete and detailed, description of the system that involves how the constituent parts of the system are interconnected and how they interoperate in order to implement the ISA.[2] The size of a computer's cache for instance, is an organizational issue that generally has nothing to do with the ISA.
System Design which includes all of the other hardware components within a computing system such as:
System interconnects such as computer buses and switches
Memory controllers and hierarchies
CPU off-load mechanisms such as direct memory access (DMA)
Issues like multiprocessing.
Once both ISA and microarchitecture have been specified, the actual device needs to be designed into hardware. This design process is called implementation. Implementation is usually not considered architectural definition, but rather hardware design engineering.
Implementation can be further broken down into three (not fully distinct) pieces:
Logic Implementation — design of blocks defined in the microarchitecture at (primarily) the register-transfer and gate levels.
Circuit Implementation — transistor-level design of basic elements (gates, multiplexers, latches etc) as well as of some larger blocks (ALUs, caches etc) that may be implemented at this level, or even (partly) at the physical level, for performance reasons.
Physical Implementation — physical circuits are drawn out, the different circuit components are placed in a chip floorplan or on a board and the wires connecting them are routed.
For CPUs, the entire implementation process is often called CPU design.
More specific usages of the term include more general wider-scale hardware architectures, such as cluster computing and Non-Uniform Memory Access (NUMA) architectures.

[ishusharma]

difference between interface and abstract classes
Interfaces are, like classes that have definition of methods, properties, events, indexers but no implementation. Interfaces are implemented inside classes or structs.

Abstract classes are intended to be used base class. An abstract class cannot be instantiated.
A non-abstract class derived from an abstract class must include actual implementations of all inherited abstract methods and accessors.
Abstract and sealed (class cannot be inherited) modifier can’t work together.

An abstract class can have abstract members as well non-abstract members. But in an interface all the members are implicitly abstract and all the members of the interface must override to its derived class.

Abstract classes can have protected members, static members.
The members of the interface are public with no implementation

An interface can inherit from one or more base interfaces.
A class can inherit one or more interfaces, but only one abstract class.

[ishusharma]

difference b/w rdbms and dbms


DBMS(data base management systems) and RDBMS( relational
database management system) the main difference in dbms
data is stored in the form of rows and columns and in the
case of rdbms data stored in the form of tables and data
stored in dbms is temporarly where as in rdbms is
permanently
eg: dbms-->sysbase foxpro
eg: rdms-->oracle,sql server

[ishusharma]

Classes and objects are separate but related concepts. Every object belongs to a class and every
class contains one or more related objects.

?A Class is static. All of the attributes of a class are fixed before, during, and after the execution of
a program. The attributes of a class don't change.

?The class to which an object belongs is also (usually) static. If a particular object belongs to a
certain class at the time that it is created then it almost certainly will still belong to that class right
up until the time that it is destroyed.

?An Object on the other hand has a limited lifespan. Objects are created and eventually destroyed.
Also during that lifetime, the attributes of the object may undergo significant change.


class and object for same related methods
class is nothing but same related to variable to methods.

eg car is a class

maruti santro bolero this is on object

[ishusharma]

polymorphism---------


"Poly" means "many" and "morph" means "form". Polymorphism is the ability of an object (or<br>reference) to assume (be replaced by) or become many different forms of object.<br><br>Example: function overloading, function overriding, virtual functions. Another example can be a plus<br>?+? sign, used for adding two integers or for using it to concatenate two strings.


polymorphism means ability to take more than one form of an object.<br><br>example : polygon.<br>with the same straight lines we can draw octogon,pentagon,hexagon.