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How to Defrag Your Hard Drive

A computer has very few moving parts to wear down, break down or slow down. The obvious exception is the hard drive. It has many moving parts that must operate at near perfection to fetch and store data efficiently. This fact makes the hard drive the prime suspect when processes seem to be lagging. If the hard drive takes too long to provide the data a program needs, processing speed can quickly change from instant to "hurry up and wait" status.

So what do you do about it? Disk defragmentation has long been the go-to cure for a sluggish computer. Until recently, if you asked most computer geeks how to speed things up, they would tell you to try a "defrag" before just about anything else. Today's faster, larger and more efficient hard drives make defragmentation a less effective solution for slow computers. In most cases, however, a defrag remains a relatively simple way to boost your system's speed and efficiency.

In this article, we'll explore the defragmentation process to learn what it is, how it works and the potential benefits. We'll also explore advances in hard drive and operating system technologies and how they affect the defragmentation process.

Kathi Lanti Gunta

What are the Sensex & the Nifty?

The Sensex is an "index". What is an index? An index is basically an indicator. It gives you a general idea about whether most of the stocks have gone up or most of the stocks have gone down. 

The Sensex is an indicator of all the major companies of the BSE. 

The Nifty is an indicator of all the major companies of the NSE.  

If the Sensex goes up, it means that the prices of the stocks of most of the major companies on the BSE have gone up. If the Sensex goes down, this tells you that the stock price of most of the major stocks on the BSE have gone down. 

Just like the Sensex represents the top stocks of the BSE, the Nifty represents the top stocks of the NSE.

Just in case you are confused, the BSE, is the Bombay Stock Exchange and the NSE is the National Stock Exchange. The BSE is situated at Bombay and the NSE is situated at Delhi. These are the major stock exchanges in the country. There are other stock exchanges like the Calcutta Stock Exchange etc. but they are not as popular as the BSE and the NSE.Most of the stock trading in the country is done though the BSE & the NSE. 

Besides Sensex and the Nifty there are many other indexes. There is an index that gives you an idea about whether the mid-cap stocks go up and down. This is called the “BSE Mid-cap Index”. There are many other types of indexes.