Before buying a tablet PC among buyers, a common misconception is: first of all, to think about its purpose. Decide where( at home, on the road, at work) and for what purposes the device will be used. However, this is not entirely true. First of all, you need to think about how to choose a tablet and what characteristics you need to pay attention to.
Step 1. Find the optimal screen
The quality of the screen - the main technical characteristics of the tablet. The display, the main working tool, affects the level of visual perception. It is worth considering its parameters when choosing a gadget.
Most tablets have a diagonal of 7-10 inches. However, the contrast of the image does not necessarily improve with increasing this parameter. The quality is also affected by the screen size, the ratio of width and height. Low PPI( the number of pixels per inch) of the screen is the reason for the uncomfortable perception of images and text. The optimal value is more than 200. A display with a PPI of less than 150 is not recommended for visual impairment.
Possible paradoxical situations when buying:
- The gadget with a diagonal of 7 "16:10( 800 by 480) has a larger PPI than with a 10.1" screen of the same format( 1024 by 600)
- The more expensive device has a much lower indicator,than at cheap. So, the PPI iPad 2( 19000 rub.) Is only 132. When the vision is not ideal, the best is the Samsung tablet - Galaxy Tab 2 7.0( 9000 rub.).Its indicator is higher: 164.
Advanced sensor technology IPS( plane switching) transmits a natural quality picture to the screen of the tablets. When the screen is tilted, it does not distort and saves colors. In many models, the multitouch function is provided. With its help, the screen is able to recognize several touches at the same time.
Step 2. Understand the operating systems
Getting to know the Android
The tablets are comfortably provided by Android( Google).This operating system was originally developed for sensor devices. It is open, quickly updated.
Modern versions of Android are successfully used not only on tablets, but also other mobile devices: netbooks, multimedia players, electronic books. The table shows the advantages and disadvantages of the system that users have identified.
| Advantages android | Disadvantages of Android |
|---|---|
| A huge number of applications are available( more than 750,000) for downloading, installing via Google Play and alternative sources | High power consumption |
| Standard Google applications( cards, mail, social network) are part of | The tablet has a long history: eachthe manufacturer configures the interface in its own way |
| The tablet with this OS is easily connected to the PC( as a removable disk), the | data is easily copied by the simple OS vulnerability: frequent updates - princompatible versions of programs, problems when launching applications |
| Wealth of the interface: any element is customized individually based on the preferences of | |
| The Google Now mobile assistant is able to display the required information: the owner's location, traffic jams, current weather, is able to conduct a dialogue | |
| Memory expansion option |
Introduction to iOS
The operating system iOS( Apple) is installed only on the devices manufactured by this company. There are no lags - delays in the work of the program and applications.
However, the platform has its own pitfalls:
- It is impossible to work in multitasking mode without installing tweaks - special applications-optimizers
- iTunes is needed for working with a PC: direct copying without it is not performed
- Memory cards are not supported
- High price of devices with iOS
Unlike Android, the operating system allows the tablet to work long without recharging. The reason is its regular optimization by the manufacturer. The filling of the goods is updated at least once a year. The system has a personal assistant Siri.
The platform is closed. The programs are purchased only in the App Store. In the online store is opened the Russian segment - there is the possibility of paying on the ruble card. A convenient buying mechanism is offered.
Introduction to Windows
A tablet with Windows is a good alternative to a laptop( netbook).It has installed programs familiar to PC: Open Office, Outlook, Exchange, etc. The usual logic of operation and menu is the main advantage of the operating system. Windows 8 was originally designed for touch control, that is, for tablet PCs.
Other advantages of Tablet PCs with Windows:
- Possibility to connect to PC
- Full multitasking
- Support for
- memory cards Xbox Live service for games and communication
- is installed The defender of Windows is constantly updated.
Among the shortcomings, users note a small number of applications in the online store Windows. There are often problems with sound. On some tablets audio recordings are played too quietly, on others it is impossible to listen to music in headphones.
Step 3. Determine the processor and memory
The speed of the gadget depends on the values of the indicators:
- processor frequency
- bus size
- number of cores.
The higher the value, the faster the device will work. However, high power requires more energy, reduces the running time without recharging. Good tablets have a frequency of 1 GHz and 4 cores.
The number of cores enhances the gadget's capabilities. In multi-core devices, the data stream is parallelized, and the amount of processing tasks increases. The characteristics of the bus indicate the frequency with which the processor and RAM exchange data.
The power of the tablet depends on the RAM.Its volume is associated with the operating system. For iOS, 512 MB is enough. In devices with Windows 8, the minimum memory is 2 GB, with Android - 1 GB.
For additional applications, RAM is not fully available: part of it is occupied by the operating system. Therefore, pay attention to the amount of internal memory. When it can not be expanded, the value of the indicator becomes especially important.
The video card on most models is integrated: the core of the video processor is integrated into the main processor. They produce devices with separately built-in( discrete) video cards. Here, the data is processed by a separate processor. This card is well suited for modern games.
Step 4. Check communications, battery life, additional features of the
iPad models are designed for 10 hours of operation without recharging. In other plastics, the battery discharges faster. Windows OS is able to work autonomously only 4-5 hours.
Full discharge and charging of the battery is carried out not more than 1 time per month. Frequent 100-percent charge negatively affects the work of the tablet, reduces its service life. The battery works well with a partial charge of 50-70%.
For the Internet in the tabletower there are adapters:
- Wi-Fi
- Bluetooth
- modem 2-4 G.
Wi-Fi provides high-speed connection in public places, at home with an access point. The second wireless adapter works if the Bluetooth function is enabled on a working phone. The transfer speed is low, but it is more economical way in terms of battery consumption.
When the Wi-Fi access point is not available, mobile Internet with modems 2-4 G will help. Connection is possible if there is a SIM card in the device. In addition to the ability to connect to the Internet, the tablets attract the presence of a GPS receiver. It uses satellite signals to determine the coordinates of the user, helps to build routes of movement.
Additional features of the gadget should pay attention to the presence of a camera and Skype, the ability to call and connect the keyboard with the mouse. The stylus for controlling the screen can make work with the device more comfortable.
If the gadget is bought for the first time, it is better to choose the inexpensive model. The quality of assembly, as well as the bundling they have is at a decent level for familiarity and familiarity with the device. In this case, programming for cheap models is updated at times more often than expensive gadgets.
When choosing the first gadget, it's worth keeping faithful to the ecosystem. It will be easier to learn the technical capabilities of the device in practice and organize a convenient exchange of information between the tablet, desktop computer, mobile phone.
