ALL IN ONE

27 June 2007

Networking Concepts

A computer network is composed of multiple computers connected together using a telecommunication system for the purpose of sharing data, resources and communication. For instance, a home computer network may consist of two or more computers that share files and a printer using the network. The size and scalability of any computer network are determined by the hardware used as well as which protocols are being implemented.

1. TCP/IP : TCP/IP protocol suite, which is named after two of the most important protocols in it: the Transmission Control Protocol (TCP) and the Internet Protocol (IP), which were also the first two networking protocols defined. Today's TCP/IP networking represents a synthesis of two developments that began in the 1970's, namely LAN's (Local Area Networks) and the Internet, both of which have revolutionized computing. The link below is a guide to TCP/IP protocol.
TCP/IP Guide

23 June 2007

Job Opportunities

The links below have a list of some of the top VLSI companies operating in INDIA.
Some VLSI Companies in INDIA
Companies working in the field of VLSI Design In India

16 June 2007

Web Security

1. In computing, phishing is a criminal activity using social engineering techniques. Phishers attempt to fraudulently acquire sensitive information, such as usernames, passwords and credit card details, by masquerading as a trustworthy entity in an electronic communication.

Go through the links below to get a complete idea about the latest phishing attacks and the related measures to avoid them.

Anti-Phishing
Phishing News
Hacking Threats

Anti-Phishing Products :
i) Guard ID
ii) e-tokens
iii) KeyLok

2. Computer Security and Hacking --
Visit this link to know how to protect your computer from threats



15 June 2007

Computer Programming

1. C: It is a general-purpose, block structured, procedural, imperative computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system. It has since spread to many other platforms. Although predominantly used for system software, C is also widely used for applications. C has also greatly influenced many other popular languages, especially C++, which was designed as an enhancement to C. To know more about C programming visit the link below.


C Language

2. C++: It is a general-purpose, high-level programming language with low-level facilities. It is a statically typed free-form multi-paradigm language, supporting procedural programming, data abstraction, object-oriented programming, and generic programming. Since the 1990s, C++ has been one of the most popular commercial programming languages.
To Learn C++ easily visit the links below.

Learning C++ made easy
C++ Reference

3. Java: It is a programming language originally developed by Sun Microsystems and released in 1995. Java applications are typically compiled to bytecode, although compilation to native machine code is also possible.The language, widely considered to be the most popular platform for web development, derives much of its syntax from C and C++ but has a simpler object model and fewer low-level facilities. For learning java programming go through the link below.

JAVA Programming

4. Shell Scripting : A shell script is a script written for the shell, or command line interpreter, of an operating system. It is often considered a simple domain-specific programming language. Typical operations performed by shell scripts include file manipulation, program execution, and printing text. The link below gives more information about unix shell scripting.

UNIX Shell Scripting

5. Perl : It is a dynamic programming language created by Larry Wall and first released in 1987. Perl borrows features from a variety of other languages including C, shell scripting (sh), AWK, sed and Lisp. More about perl in the link below.

PERL Programming

6. Algorithms: Algorithm is any well-defined computational procedure that takes some value, or set of values, as input and produces some value, or set of values as output." In other words, algorithms are like road maps for accomplishing a given, well-defined task. So, a chunk of code that calculates the terms of the Fibonacci sequence is an implementation of a particular algorithm. Even a simple function for adding two numbers is an algorithm in a sense, albeit a simple one.
The link below has lecture notes on introduction to algorithms. Please visit the link to gain a good knowledge on algorithms.

Introduction to Algorithms

7. TCL: Tcl is a software package which provides an extensible command-line interface and scripting language. Tcl is an acronym for Tool Command Language. The TCL language is normally interpreted, so TCL applications will normally not run as fast as equivalent C programs. For a large class of applications this is not a disadvantage, however, since the speed of processing of modern computer systems is more than adequate. Where speed of processing is essential, use can be made of a TCL compiler, or processing can be carried out in a compiled language, such as C or C++, and the user interface written in TCL.
The link below has a tutorial for learning TCL.

TCL Tutorial

8. W3Schools -- Interactive learning of many languages with examples.

Electronics

1. ATA (Advanced Technology Attachment) is the official name that American National Standards Institute group X3T10 uses for what the computer industry calls Integrated Drive Electronics (IDE). The link below gives a clear idea about the ATA.
Advanced Technology Attachment(ATA)

2. To know about IDE controllers and their working principles go through the link below

IDE Controllers

3. Hard Disk: A hard disk drive (HDD), commonly referred to as a hard drive or hard disk, is a non-volatile storage device which stores digitally encoded data on rapidly rotating platters with magnetic surfaces. For detailed information visit the link below.

Hard Disk Drive (HDD)

4. RAM (Random Access Memory): Random access memory (usually known by its acronym, RAM) is a type of data storage used in computers. It takes the form of integrated circuits that allow the stored data to be accessed in any order — that is, at random and without the physical movement of the storage medium or a physical reading head.
To know more about the importance of RAM and its working go through the links below.

How RAM Works
Importance of RAM Size
Different Memory Types
Choose the best RAM for your Motherboard -- Enter your motherboard specifications and find out which RAM will be best for your system.

5. Flash Memory: It is non-volatile computer memory that can be electrically erased and reprogrammed. It is a technology that is primarily used in memory cards, USB flash drives (thumb drives, handy drive, memory stick, flash stick, jump drive), which are used for general storage and transfer of data between computers and other digital products. It is a specific type of EEPROM that is erased and programmed in large blocks; in early flash the entire chip had to be erased at once. Flash memory costs far less than byte-programmable EEPROM and therefore has become the dominant technology wherever a significant amount of non-volatile, solid-state storage is needed. Examples of applications include PDAs and laptop computers, digital audio players, digital cameras and mobile phones. It has also gained some popularity in the game console market, where it is often used instead of EEPROMs or battery-powered static RAM (SRAM) for game save data.
Go through the link below to know more about flash memory.

More about Flash Memory
Types of Memory Cards
All About Memory Cards

6. Graphics Card: Video or graphics circuitry, usually fitted to a card but sometimes found on the motherboard itself, is responsible for creating the picture displayed by a monitor. On early text-based PCs this was a fairly mundane task. However, the advent of graphical operating systems dramatically increased the amount of information needing to be displayed to levels where it was impractical for it to be handled by the main processor. The solution was to off-load the handling of all screen activity to a more intelligent generation of graphics card.
To know how graphics cards work visit the link below.

How Graphics Cards Work

7. Facts of Basic Electronics

Please visit the above link for very good articles on basic electronis stuff which we come across in our day to day life.


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