DVD playback, video game, 3D image processing … The laptop has multimedia functions and capabilities that compete with those of a desktop computer . In addition, because of its mobility, its use is found multiple and varied. Whether portable , portable , ultra portable or mini portable , there are as many formats as there are uses. With the appearance of the mini notebook or netbook , it is the advent of computer portability.
1. Introduction
– All in one
A laptop (in English laptop or notebook ) is a personal computer whose essential feature is portability. Unlike a desktop computer, Online Shopping in Lahore it does not have a CPU. A laptop is composed of several elements allowing its operation: the processor, the motherboard, the hard disk … a keyboard , a screen and a mouse.
– Variable prices
All these elements are compacted inside a small box, hence the higher price of a laptop compared to a desktop computer. Exception made for portable minis whose basic capacities allow a lower cost.
– The lightness: a weight advantage
The average size of a laptop is 35 cm wide by 27 cm deep, and 25 cm by 17 cm for a portable mini. There are laptops of large dimensions: 40 cm wide and 30 cm deep. These are in fact transportable PCs whose weight is often around 4kg. The size of pairing with weight, the smaller a computer is, the lighter and easier to carry.
– Integrated parts
As most parts are integrated, they can not be changed. It is therefore necessary to know the technical characteristics of a laptop and the use that one wants to make before acqurir. In addition, the integration of all the parts by the manufacturer makes it possible to minimize the risks of material incompatibilities.
– Autonomy
The interest of a laptop is to be autonomous as long as possible without the need to be connected to mains. It works with a rechargeable battery on mains.
2. Uses
The mobility and reduced footprint of the laptop have certain interests in its use. Limited initially to a strict office and professional use, the laptop has evolved to a full and extremely varied multimedia use close to the fixed PC: photo editing, video games, DVD playback … With the netbook, the laptop is back Simplified use, with emphasis on connection and mobility.
With the emergence of wireless networks , communication pros can connect with their mobile from almost any area, as long as it is covered by WiFi or 3G. Small and light, ultraportables and netbooks / netbook allow nomads to connect to the net to chat on their instant messaging, view their email, perform simple office tasks from a cafe, a train, a waiting room equipped with Wifi. By slipping easily into a handbag, the netbook has also conquered a large female audience.
Players and moviegoers can indulge their passions, wherever they are, on a laptop with a comfortable screen (15 “for a laptop, up to 20” for a portable), a powerful graphics card and a powerful processor.
Memory, computing power … With a laptop with a powerful hard disk and processor, business professionals can use the same features as their desktop and manage multiple software.
Video editing, photo processing, sound mixing … all these multimedia applications are also made possible outside the home with laptops that combine high storage capacity and speed of execution. The number of inputs and outputs also allows great interactivity with high-tech accessories: USB 2 ports for a mobile phone, a USB key, a digital camera, an external hard drive … The Firewire port ( or IEEE 1394 ) for a digital camcorder (which has a higher bit rate than a USB port), a VGA output for an external monitor , an S-Video connector for TV …
3. The screen
Size
The size of a screen is one of the determining factors in the choice of a laptop. It is often correlated with the weight and size of the machine.
If you want to limit yourself to simple office use, buying a widescreen laptop may not be warranted.
But if you want a laptop to watch movies, choose a portable screen for your eyes.
From 10 “for a portable mini / netbook up to 20” for a transportable, the average size of a laptop screen is 15 “(1 inch = 2.54 cm).
The format
The most common display format is 4: 3 (normal TV format) but there are exotic laptop screen formats, close to 16: 9, such as the 15:10 format, more suitable for viewing video sequences (DVD playback for example).
Response time
From a technological standpoint, most laptop screens are flat and TFT (Thin Film Transistor) using an LCD (liquid crystal display). The quality of a TFT screen depends on its response time or latency, that is to say the time required to descend and reassemble information. The lower the response time is indicated (below 20 ms), the better it is, the more fluid are the moving images. Low response time screens are more appropriate for players and screens with a response time longer than 20ms are more suitable for basic use.
4. The processor
Frequency
The processor is the brain of the computer, it is he who processes the instructions. Its speed of execution is conditioned by its frequency (in MHz), but two processors of different brands can have quite equivalent performances with very different frequencies.
For a greedy use of software and multimedia applications, a computer with a powerful processor (with a frequency> 2.4Ghz) is recommended.
For a more basic use, a medium range processor (= 2Ghz) is enough.
But today, it is better to consider the quality of all components (graphics card, memory) than sticking to the only value of the frequency of the processor.
RAM memory
The amount of RAM can have a significant effect on performance, especially for multimedia uses. It only serves as an information transit area (when you turn on or download a program for example).
The operating frequency
In addition to the amount of memory, it is also important to pay attention to its operating frequency, which is the frequency at which most devices will run.
5. The hard drive
Capacity
It is the memory of the computer, the place where the data and programs of the computer are stored. We are interested in its capacity: from 160GB we avoid the risk of saturation, from 320GB, we joined the use of a fixed PC.
You can extend the storage capacity of your laptop as much as you need with an external hard drive or USB stick (some up to 64GB).
Brands of netbooks have chosen to work with a hard disk flash (SSD), which makes them more resistant to shocks, lighter too. Their use – limited to light office and connection – can be enriched with multimedia applications stored on a USB stick or an external hard drive.
Execution speed
For ease of use, a rotation speed of at least 5,400 rpm (up to 7,200 rpm) is recommended.
6. The graphics card
The choice of the graphics card is important, especially for running video games with elaborate graphics, watching movies, doing desktop publishing, or managing 3D images. As it is integrated into the motherboard, it is better to check beforehand its power. Online Leptop in Lahore Players have every interest in choosing a laptop with a branded graphics card, compatible with programs essential to animations like DirectX 9.
7. Engraver reader
Becoming standard, double-layer DVD burners have gradually replaced combos CD and DVD players and CD burners. They make it possible to keep on a single support several GB of data. Some notebooks even include HD / DVD or Blu-ray players or players / recorders with storage capacities ranging from 30 GB to 50 GB and up.
8. Mouse and keyboard
If the laptop includes a keyboard and a touchpad (touchpad), nothing prevents the addition of more comfortable devices. There are “pocket mice” adapted to the format of laptops and netbooks with an integrated wire winder and ergonomic keyboards more spacious for better typing on the keys.