This is the basic difference between 3 N’s for a novice, but if you are tech savvy then I think it is not sufficient for you. Let’s discuss them in detail. Notebook (Laptop) is a device with a keypad and a touchpad hinged with the screen. This device has all the features like CD drive, USB port, LAN port, VGA port with Hard disk of minimum 80 GB with at least 12-inch screen. You can use the notebook in your personal as well as official use. Many companies are providing Notebook i.e. Sony, Dell, HCL, Lenovo, HP, Toshiba, Acer, and ASUS. Usually, Laptop price range starts from $1000

Now come to 2nd N Notebook. The netbook is a small version of the laptop (Notebook). Mini laptop and Sub-notebook are some other names of Netbook. The idea behind a Netbook is to make the laptop handier and easy to carry. The screen size of Netbook is 8~ 12 inches which is the least limit of the laptop. On the features, part Netbook is also weaker. Like, it does not contain a CD/DVD drive. Due to less space, the numbers of ports may be less in Netbook. Usually, the battery life of Netbook is also less than that of the laptop. There are some common features in Netbook and Notebook like hard disk RAM, Operating System. All the companies those are providing notebooks are coming with their Netbook due to an increase in their popularity. Is the price range varies from $300~$1000? If you want a handy device like Netbook and features like Computer Notebooks then you need not worry, many companies like ASUS, Dell and Sony are continuously upgrading their Netbook’s to give all features like notebooks.

The nettop is a new term in the tech world; it is a condensed version of Desktop. The nettop is small box contains Atom processor, hard disk and USB, LAN, VGA ports. Like Netbook Nettop does not contain CD/DVD drive due to less space. The nettop is so smaller that it can hide behind your LCD screen. As Nettop is new only few companies are providing Nettops i.e. Sony, Dell, Acer. It's cost you so what around $400.

We have discussed 3 N’s but still you some doubt that which gadget suits you best. Let’s solve this dilemma. If you are a user with normal official and personal usage and don’t want to speed more bucks then you should buy a notebook. If you are a user want to you a portable gadget of giving a presentation to your customers or to your superiors regularly then you need some handy like Netbook. And if you are technology hunger and want to take a full excitement of Gaming, latest software and movies then you should surely go for a Nettop.

5 Best Notebooks (Source: CNET)

1. Apple Mac Book Pro Summer 2009

2. HP Mini 311

3. HP Mini 5101

4. Asus UL30A-A1

5. Toshiba T135-S1310

5 Best Netbooks (Source: Laptopmag.com)

1. Toshiba NB205

2. Samsung N110

3. HP Mini 2140

4. ASUS Eee PC 1000HE

5. Acer 10.1-inch Aspire One AOD150

5 Best Nettops

1. Acer Aspire Revo R3600

2. Dell Zino HD

3. Lenovo Idea Centre Q110

4. Asus EeeBox EB1501

5. Polywell Poly-ITX 945GC3

Firstly you should be clear the purpose of buying a laptop. For buying any product this is a basic requirement. There are two types of purposes for buying any product. First is Primary purpose and the second one is Secondary purpose. Primary purpose includes personal use, official use. Secondary purpose includes using a gaming gadget, for listening to music, for Internet chatting.

Ergonomics: - This is the main thing after deciding the purpose. You are spending huge money on buying a laptop then it’s very important the laptop should comfortable for use. This implies that the buttons in the laptop should be well spaced; there should enough room for placing your hand while typing.

Most of the laptop use touchpad as a mouse. So check the responsiveness of the touchpad, but don’t leave the laptop due to this reason as you have an option to use an external USB mouse. But it requires extra space for working. The second thing in ergonomics is looking. For spending a huge some of the money you should take care of looks of the laptop. Ideally, Laptop should be matched your personality and primary purpose. If you are usithe ng laptop for official use then the Laptop should be formal and if you are usithe ng laptop for personal use then you can go for some stylist laptop like Sony Bond Z VAIO.

Power Management: - Second important factor is power consumption and battery usage. Both these things depend upon display size and processor technology. More the size the more will be power consumption and less will be battery backup. Advance the technology of processor less the power consumption and more will be battery backup. So you have to buy a laptop wian the advanced processor with small size if battery backup is on top of your mind. DELL E6400 is having 10 hours battery Backup an on a single cell. 

Size/Weight: - All the laptops have different sizes and weights. Size of the laptop is purely depends on the display size. Usually, people prefer the large size of the display. But large display laptop consumes more battery so I will recommend you to buy a laptop of medium size i.e 14 inches which consume less battery and comfortable to use. 

The weight of laptop depends upon many factors like number off components in laptop, size and Brand of the laptop. Toshiba Laptops are lightest in their segment. If you have to carry a laptop for much time then you should buy lighter laptops ranging 1 kg gram to 2 Kg. Toshiba Portege R500 is the lightest laptop in the world which is only 1kg in weight.

Processor: - Processor is the heart of laptop. So while buying a laptop tries to get the latest processor (if your pocket allows) as some sophisticated programs require a specific processor to run. Secondly, it consumes less battery which increases your battery life and the most important thing is that, the older processor will outdated in a year as technology is changing. These days Intel core 2Duo is the latest processor which is readily available in the market. 

Memory / RAM: - RAM (Random Access Memory) will greatly decide the speed of your laptop or computer. Higher the RAM more will be the speed of your laptop. Usually, laptops are coming with 1GB or 2GB RAM. If you are tech savvy using advance software then you should buy 2GB or more otherwise 1GB will be sufficient for you.

Hard Drive: - Hard Drive is an important part for consideration of Laptop. The hard drive will be the location where all your important files, folders and programs will store. So it depends upon your usage of the laptop. If you are using a laptop of normal use then 80 GB is sufficient for you and if you want to store movies, games then you should surely go for 160.

Ports: - Number of USB ports is also a decisive factor for buying a laptop. Usually, people are using too many gadgets i.e. Digital Camera, MP3 player, Cell phone. So laptop having one USB port will not serve your purpose. Most of the laptops are having 2 USB port, but Lenovo laptops are coming with 4 USB ports. VGA port is also a necessary requirement if you are using the laptop for giving presentations. All the latest projectors are connected through VGA port. 

Connectivity: - If you are using the laptop for mobility then connectivity is a big question for you. In today’s world, everyone wants wire-free connectivity. In market commonly used connectivity methods are Blue tooth and Wi-Fi. With the help of Blue tooth, you can also transfer your movies, songs, pictures from mobile. You can also able to run Internet on laptop through mobile. But Blue tooth has its limit up to 60m. 

Wi-Fi is an advanced feature in connectivity world for multi-user high-speed connectivity. Wi-Fi enables you to send heavy files and run Internet with high speed for longer distance. Wi-Fi is a longer distance than Bluetooth (Up to 15 km). Good hotels having this type of facility in their rooms. So for hotel lovers, the Wi-fi is the best option in the market.

Add on the facility: - You are spending so much so you have to do research and bargain with your retailer. All the renowned companies like HP, Sony are offering add-on things like printer, scanner, camera, PC-Card for purchasing a laptop. Sometimes they offer these products without any additional charges and sometimes they offer these products at a discounted rate. Many retail chains like Hotspot, Mobile Store are also offering lucrative offers like Pen Drive, Bluetooth device, Earphones with a laptop. All these are marketing tact’s to attract customers, now you have to choose which option will suit the best.

Enhancers: - Enhancers are a device which enhances your system to perform specific operations neatly. This category includes Graphic Card and Sound Card. If you want to use your laptop as gaming gadget then you should buy this card. As today most of the 3D games require an additional graphics card. Now comes to sound Card, if you want to feel the pop, jazz music on high volume then you should buy an advanced sound card. 

Service availability: - Now after deciding all the features and add-on facility, service back up is the most criteria for buying a laptop. This includes many things.

• What type of service you will get? I mean that the service is on site or you have to take a laptop to their service station. Like DELL is providing you the on-site service.

• What will be their lead time for fixing the problem if comes? It means that the problem will be fixed at their level or they have it to their office.

• If you are an international journey that then whether the company is providing international service or not.

Upgrading Ability: - One common mistake which all the buyers do is that they did not check the upgrading ability of their laptop. Check whether there is an extra slot for upgrading the RAM, Hard drive or other add-on features. 

These are a major set of things which you consider before buying a laptop. There many more things like warranty, Brand Name, your friend / relative advice which are also a part for buying. 

By summing up I want to tell you that the buying laptop is not a big task if you prioritize your needs of buying the laptop. Best wishes for your Laptop!!!!!!!!!!!!