With the advent of newer technology every day all things are becoming quicker, smarter and smaller. Usability and compactness are a key concern of every consumer nowadays. Computers also came under the demand of more compactibility and so came the birth of laptops. They are personal computers which have all the features of a desktop but its size and display are far smaller and it weight so light that it can be carried around just like a carry bag. The miniaturization along with efficient power handling is the key features of laptops and that is why it has become a popular replacement of the personal computer. It is especially popular among the globe trotting business man who is constantly on the move.

Laptops come in three possible categories depending upon the physical features and power

1. Ultra portables: These kinds of laptops are twelve inches of length diagonally and its weight is more or less around 1.7 kg. They are especially popular among business travelers who are in need of smaller laptops which have easier mobility. However the downside is that the ultra portables are far more expensive and there graphics are not as good as that of a desktop. Also in order to make ultra portables to weigh so little, hard drive capacities may be limited and optical drives are also not always included.

2. thin-and-lights: these Laptops usually weighing between 1.8kg and 2.8kg with a screen size of between 12 and 14 inches diagonally. thin and light laptops have optical drives, larger hard drives and larger displays as compared to an ultra portable

3. desktop replacement laptops: Normally laptops trade power and efficiency for light weight and minitiarization but there are certain laptops which have the same processor efficiency as a desktop. These kind of laptops normally have larger screens and are heavier in weight. They are not intended for frequent traveling as they are heavier and a far less power efficient as normal laptops.

Connectivity: One of the most important feature of a laptop is mobile connectivity. A laptop allows you to be in connection with your office network all the time and also with the internet. Connectivity on the move is what makes laptops special. There are several type of connectivity options available to you on a laptop. Wireless connectivity on you
Laptop is easily possible if you are running a windows xp operating system which allows you to get connected to a wireless network with a few simple steps.

Batteries
One of the most important components of a laptop is the battery. This is because laptops are portable equipments and need internal power source which is provided by the batteries. Hence laptops have good and reliable batteries to keep it running continuously for hours. Also battery life depends on several other functionalities. For example a laptop with a larger display has a lesser battery life as compared to a laptop with a smaller display. Also changing the laptop settings to a lower power level goes a long way in enhancing battery time.

Security concerns: laptops are prone to several security threats. Hence making your personal laptop secure is the primary concern of all laptop users. Some of the major security concerns of all laptop users include

1) Electronic Eavesdropping
Popularly known as sniffing involves unauthorized persons accessing networks and files by imitating as an authorized user and then undergoing malicious activities like data theft

2) Modification of Data
Data can has been maliciously modified or tampered with can be used to obtain access to confidential information. It is very difficult to determine the amount of damage as you may never know how much of data is modified.

3) Virus' & Trojans; viruses that come as attachment with emails are the most potent threats to all laptop users. Also one infected laptop can infect the whole wireless network where it is connected to.

Prevention of attacks: in order to prevent any security compromise with your laptop always installs firewalls into your laptops. These firewalls keep your laptops secure from unknown virus attacks. However these firewalls might need to be regularly updated and also tend to make your computer slow. As regards to data theft and eves dropping is concerned it can easily be prevented by encryption of all sensitive data so that no person with ought proper authorization to can get access to them. Always use a network security
Cable when you need to leave the laptop in an unsecured place.

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