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Laptops

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A laptop or a notebook is a portable personal computer with a clamshell form factor, suitable for mobile use.

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LAPTOPS
 Introduction  Components  Advantages  Disadvantages
INTRODUCTION  Laptops are becoming as common as your cellular phone, and now they share the hardware industry as that of desktop computers with a number of configurable options. The features, the price, the build quality, the weight and dimensions, the display, battery uptime or that matter, the ease of the trackball. Earlier, there were hardly any configurable options available but today, we have a variety of laptops n different configurations with the process and just about anything you want.  Companies such as Intel, AMD, Transmeta and nViad, to name only a few, are making laptops a hype and reality. Intel and AMD have brought out technologies such as speed step to preserve battery power in laptops.  If you are on the move all the time, you probably need a laptop that can do all the things that you will not be able to do all the things that you will not only able you to create documents, spreadsheets and presentations, but also send and receive e- mail, access the web and may be even play music CDs or watch a DVD movie to get that much deserved break. You need laptop that is also study enough to take the bumps and joints in its stride while you are on the move.
Components  The basic components of laptops function identically to their desktop counterparts. Traditionally they were miniaturized and adapted to mobile use, although as of the present decade an increasing number of desktop systems use the same smaller, lower-power parts which originally evolved for mobile use. The design bounds on power, size, and cooling of laptops limit the maximum performance of laptop parts compared to that of desktop components, although that difference has increasingly narrowed over recent years.
Advantages  Size: Laptops are smaller than desktop PCs. This is beneficial when space is at a premium, for example in small apartments and student dorms. When not in use, a laptop can be closed and put away.  Low power consumption: Laptops are several times more power- efficient than desktops. A typical laptop uses 20–120 W, compared to 100–800 W for desktops. This could be particularly beneficial for businesses (which run hundreds of personal computers, multiplying the potential savings) and homes where there is a computer running 24/7 (such as a home media server, print server, etc.)  Quiet: Laptops are often quieter than desktops, due both to the components (quieter, slower 2.5-inch hard drives) and to less heat production leading to use of fewer and slower cooling fans.  Battery: a charged laptop can continue to be used in case of a power outage and is not affected by short power interruptions and blackouts. A desktop PC needs a UPS to handle short interruptions, blackouts and spikes; achieving on-battery time of more than 20–30 minutes for a desktop PC requires a large and expensive UPS.[52]  All-in-One: designed to be portable, laptops have everything integrated into the chassis. For desktops (excluding all-in-ones) this is divided into the desktop, keyboard, mouse, display, and optional peripherals such as speakers.
Disadvantages  While the performance of mainstream desktops and laptop is comparable, and the cost of laptops has fallen less rapidly than desktops, laptops remain more expensive than desktop PCs at the same performance level. The upper limits of performance of laptops remain much lower than the highest-end desktops (especially "workstation class" machines with two processor sockets), and "bleeding- edge" features usually appear first in desktops and only then, as the underlying technology matures, are adapted to laptops.  For Internet browsing and typical office applications, where the computer spends the majority of its time waiting for the next user input, even relatively low-end laptops (such as Netbooks) can be fast enough for some users. As of mid- 2010, at the lowest end, the cheapest netbooks—between US$200–300—remain more expensive than the lowest- end desktop computers (around US$200) only when those are priced without a screen/monitor. Once an inexpensive monitor is added, the prices are comparable.

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Laptops

  • 2.  Introduction  Components  Advantages  Disadvantages
  • 3. INTRODUCTION  Laptops are becoming as common as your cellular phone, and now they share the hardware industry as that of desktop computers with a number of configurable options. The features, the price, the build quality, the weight and dimensions, the display, battery uptime or that matter, the ease of the trackball. Earlier, there were hardly any configurable options available but today, we have a variety of laptops n different configurations with the process and just about anything you want.  Companies such as Intel, AMD, Transmeta and nViad, to name only a few, are making laptops a hype and reality. Intel and AMD have brought out technologies such as speed step to preserve battery power in laptops.  If you are on the move all the time, you probably need a laptop that can do all the things that you will not be able to do all the things that you will not only able you to create documents, spreadsheets and presentations, but also send and receive e- mail, access the web and may be even play music CDs or watch a DVD movie to get that much deserved break. You need laptop that is also study enough to take the bumps and joints in its stride while you are on the move.
  • 4. Components  The basic components of laptops function identically to their desktop counterparts. Traditionally they were miniaturized and adapted to mobile use, although as of the present decade an increasing number of desktop systems use the same smaller, lower-power parts which originally evolved for mobile use. The design bounds on power, size, and cooling of laptops limit the maximum performance of laptop parts compared to that of desktop components, although that difference has increasingly narrowed over recent years.
  • 5. Advantages  Size: Laptops are smaller than desktop PCs. This is beneficial when space is at a premium, for example in small apartments and student dorms. When not in use, a laptop can be closed and put away.  Low power consumption: Laptops are several times more power- efficient than desktops. A typical laptop uses 20–120 W, compared to 100–800 W for desktops. This could be particularly beneficial for businesses (which run hundreds of personal computers, multiplying the potential savings) and homes where there is a computer running 24/7 (such as a home media server, print server, etc.)  Quiet: Laptops are often quieter than desktops, due both to the components (quieter, slower 2.5-inch hard drives) and to less heat production leading to use of fewer and slower cooling fans.  Battery: a charged laptop can continue to be used in case of a power outage and is not affected by short power interruptions and blackouts. A desktop PC needs a UPS to handle short interruptions, blackouts and spikes; achieving on-battery time of more than 20–30 minutes for a desktop PC requires a large and expensive UPS.[52]  All-in-One: designed to be portable, laptops have everything integrated into the chassis. For desktops (excluding all-in-ones) this is divided into the desktop, keyboard, mouse, display, and optional peripherals such as speakers.
  • 6. Disadvantages  While the performance of mainstream desktops and laptop is comparable, and the cost of laptops has fallen less rapidly than desktops, laptops remain more expensive than desktop PCs at the same performance level. The upper limits of performance of laptops remain much lower than the highest-end desktops (especially "workstation class" machines with two processor sockets), and "bleeding- edge" features usually appear first in desktops and only then, as the underlying technology matures, are adapted to laptops.  For Internet browsing and typical office applications, where the computer spends the majority of its time waiting for the next user input, even relatively low-end laptops (such as Netbooks) can be fast enough for some users. As of mid- 2010, at the lowest end, the cheapest netbooks—between US$200–300—remain more expensive than the lowest- end desktop computers (around US$200) only when those are priced without a screen/monitor. Once an inexpensive monitor is added, the prices are comparable.