What "spare parts" should you pay attention to when buying a laptop?

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The question of what "spare parts" to pay attention to when buying a laptop should bother every laptop buyer. Because there are hundreds and thousands of types of laptops available today, as well as dozens of branded laptops have already taken over the market. While price is considered as the first criterion, most people still consider the quality and affordability of laptop parts. Below we have prepared a brief information about the parts of your laptop.

Processor

Most laptops are equipped with Intel processors. Laptop processors differ from conventional computer processors in terms of energy savings based on Speed ​​Step technology. Such processors are designed to serve autonomous operation for a longer period of time.

However, when connected to the power supply system, the laptop processor switches to full power operation to ensure maximum efficiency. As soon as it starts working with the battery, it switches back to half-power mode.

Most modern laptops have a processor with 1, 2 or 4 cores. The large number of cores allows efficient use of many applications at the same time.

Cache memory is a very fast RAM, ranging in size from 1 to 8 MB. Large cache size is important for multimedia applications, playing games, and watching videos.

Laptops use single-core (Intel Pentium M, Intel Core Solo, AMD Turion 64) and multi-core (Intel Core 2 Duo, Intel Core 2 Quad, Intel Core i7, AMD Turion X2) processors. Cheaper products use "lightweight" models of processors such as Intel Celeron M and AMD Mobile Sempron. They are also less efficient as they are equipped with a small amount of cache memory and artificially limited system tires.

Also, some laptops are equipped with processors of conventional computers. For this reason, when buying a laptop, you should carefully consider the information about the processor.

Random access memory (RAM)

Random access memory or system memory is needed to store data and tasks while the processor is running. If we compare a computer to a car, the processor is its engine, and the RAM is like a transmission.

It is clear that many buyers are wondering how to get a laptop with RAM. This question is first answered with a question. "What are you buying a laptop for?" Why do you need a laptop with a large amount of RAM? If you work with the most modern operating system, complex programs, your computer should have as much RAM as possible.

The powerful, multi-core processor is "hard" in 512 MB of RAM. It prefers 4Gb of RAM. Otherwise, the laptop will run slowly and irritate you.

Also, the good performance of the RAM depends on which operating system is installed on the laptop. For example, 32-bit Windows XP and Windows Vista can only run on 4GB of RAM. 64-bit Windows XP, Windows Vista, and Windows 7 models use up to 128GB of RAM.

Screen (monitor)

The screen size is usually defined in units of inches (1 inch - 2,54 cm). Today you can find laptops with a screen diagonal of 7 ″ (tiny netbooks) to 18 ″. The display of thin ultraportable laptops usually does not exceed 13,3 ″. What diagonal laptop to buy depends on your desire, the tasks you perform on it, and and of course your financial ability.

Liquid Crystal Display (LCD) consists of tiny cells called pixels (picture element or picture sell). the main feature of the screen depends on the amount of these cells. That is, the screen capacity is evaluated by the horizontal and vertical number of cells. For example, on a screen with a matrix of 1440 × 900, the pixels are 1440 horizontally and 900 vertically. The display of modern laptops ranges from 1024 × 600 to 1920 × 1080 pixels. The number of pixels affects the image quality, the larger the capacity, the better the quality. However, the screen also requires a lot of energy.

Video system

This system includes video memory graphics controllers and a computer display. Laptops are primarily designed for office use. They are inconvenient to perform complex graphical operations using. That's why even the most modern laptops use 4-8Mb graphics adapters. However, new generations of graphics chips are drastically changing this situation, and laptops with super-modern Ge-Force technology are emerging.

A video card (graphics card) is a device that shapes and displays images. The video card in the laptop allows you to watch high-quality images (HD-video).

Hard Disk Drive (HDD)

Since the power supply is not related to the size of the hard drive, you can buy a laptop with a larger capacity hard drive depending on your ability. Today, however, laptops are fitted with special 2,5 ″ hard drives that require even less power.

The larger the hard disk size, the more data can be stored.

Communication capabilities

Today, all laptops have devices designed to exchange information with the outside world. They can also be built into the laptop, or done through special output ports.

So, the communication capabilities of laptops:

Modem. The RJ-11 / RJ-12 output allows access to the Internet via a wired telephone network. The maximum speed of information exchange is 56 Kbit / s (7 Kbytes / sec). Due to such a low rate, modems are almost obsolete.

Ethernet. The RJ-45 output path on laptops serves as a wired Internet connection. Widespread this technology is much cheaper and allows you to exchange data at home or in the office up to 1 Gbit / s (approximately 128 MB / s).

Wi-Fi. Wireless Internet connection technology. It can usually be connected within a radius of 90 meters. However, walls, metal structures and other obstacles can significantly reduce this distance.

WiMAX. Broadband, ever-evolving wireless internet technology. It can receive data at a speed of 70 Mbit / s up to a radius of 50 km.

Bluetooth. It connects to nearby mobile phones, laptops, headsets, gaming devices and joysticks, digital photo and video cameras, printers, fax machines and other devices and serves to exchange data. Typically, laptops are equipped with Bluetooth 10 technology that transmits data at a speed of up to 2,1 Mb per second within a radius of 2.0 meters.

GSM modem. GPRS / EDGE-protocols help to receive data up to 474 Kbit per second in the areas covered by mobile operators. They require SIM cards to work.

3G modem. It is possible to connect to the Internet at speeds up to 3 Mbit / s through the 3,6rd generation mobile network. 1x EV-DO and UMTS / HSDPA technologies are the most common. SIM-cards are also required for its operation.

The ExpressCard output path can help expand the communication capabilities of the laptop. This output path can accommodate cards that support Bluetooth, Wi-Fi, WiMAX, GSM / 3G, flash memory, and a TV tuner.