Componen Laptop (Part 2)

Memory and Storage

A laptop memory greatly affect the performance speed of your laptop. some laptops have cache memory to be placed close to the processor, this allows faster data akeses. Some also have greater DUS path, allowing data to move from processor to the motherboard with faster.

Laptops often use smaller memory modules to summarize the space. Momory type used on a laptop include:

- Small Outline Dual Inline Memory Module (SODIMM)

- Dual Data Rate Synchronous RAM (DDR SDRAM)

- Single data rate Synchronous RAM (SDRAM) memory modules laptops

Some laptops have the memory that is easy to be upgraded and the panel that is easy to be released.

Just like a desktop, laptop has an internal hard drive, which is used to store the operating system, applications and data files. However, laptops usually have a few hard-disk space than a desktop PC. A laptop hard drive, of course, are physically smaller than desktop PC's. In addition, performance on a laptop hard drive spinning slower than a hard drive on the PC desktop, this is to reduce both the heat and battery usage.

Desktop computers have adequate space for additional drives attached, such as CD and DVD ROM drives. Although very little space on your laptop, but many laptops use a modular design of the port, which can be paired in the same place, it has three distinct goals:

- Hot swappable - the computer is still running while carrying out replacement of the drive.

- Warm swappable - the computer is still running while Menganti drive, but the adjustment drive (which used the data transmission path to the processor) must be non-active

- Cold swappable - the computer must be turned off when making the turn.

In some cases this is not limited to the drive port is used to drive but also can be used as an extra battery.

Display and Sound

A unit of graphics processors (GPU) is a microprocessor that handles the processing / calculations important in 3D graphics. As the processor CPU, a GPU produces high heat. Most laptops have built-in graphics capabilities on the motherboard or have smaller graphics cards designed specifically for laptops. GPU manufacturers like ATI and nVidia, both producing a special GPU for laptops. Laptops often divide memory between the CPU and GPU, in order to save space and battery.

Many people are less concerned that reduces the performance of laptop graphics. Laptops have a lot of processing power for productivity applications and surfing the web. However, the laptop has struggled to cope with the latest 3D games. Only a few laptops that are specially designed for gaming enthusiasts, has a more powerful GPU and additional video memory.

Laptop screens mostly use the LCD screen. Most use a screen size between 12 to 17 inches, and the size of the screen affects the overall size of a laptop. In addition, the laptop screen include:

- Black-and-white (16 grayscale) or color (65.536 colors)

- Matrix active or passive

- Reflective or backlit

Active matrix screen out images sharper and more readable, and the backlit screen to be better used for low light conditions.

Most laptops also have its own sound card or integrated on the motherboard, as well as a built-in speaker. However, very rarely has a quality laptop soundcard and speakers such as on a PC desktop. Gamers and audio enthusiasts can add their laptops ability to add external speakers plugged in via USB port or FireWire ports available on a laptop.

Power Supply

Laptop and desktop both use electricity. Both have a small battery to maintain the accuracy of the time, and in some cases is called the CMOS RAM. However, unlike desktop computers, laptops easier to carry and can be operated with batteries.

Battery Nickel-cadmium (NiCad) battery is the first type commonly used in laptop computers, and laptops to the old type still occasionally use the battery. The period of battery charge is approximately two hours, but may be reduced depending on the memory effect. Gas bubbles in the platinum cell, lowering the total amount of space available for future cell recharging. What can be suggested on the matter is do not recharge the battery before it is completely empty. Another deficiency of the NiCad battery is charged when too long, can explode.

Battery Nickel-Metal Hydride (NiMH) is the bridge between NiCad batteries and Lithium-Ion (LiIon) the latest. NiMH batteries have longer charge times than NiCad but overall has a total active period is shorter.

LiIon batteries are the current standard for laptops. The battery is lightweight and has a longer active period. LiIon not depend on the memory effect, can be charged at random, and will not cause a heating effect when the charge is too long. LiIon batteries are also much thinner than the batteries another laptop which makes it ideal for notebook batteries are thin. LiIon batteries can last up to 950 to 1200 times the charge.

Many laptops that use LiIon states have active period of 5 hours, but the size can be very dependent on how computers are used. Hard Drive, Disk Drive and LCD screen, all these objects using battery power. Even the use of wireless Internet connections also require battery power. Many laptop models have power management software to renew or preserve battery power battery when the battery is running out.