Tablets have firmly entered everyday life. The first such gadget appeared in 1989. And it was released by Samsung. It had a black and white screen, and the tablet allowed you to do very few things. Its price was astronomical - as much as $ 3,000. Such a cost scared away potential buyers.
Therefore, the owners of such devices were those who really needed such mobile devices. Most often, the buyers were entrepreneurs, company executives, accountants of the highest level. But today it is quite an affordable device for the average person.
Modern tablet components
Diagram of the tablet device includes display, touch screen, system board and battery.
The display is directly a means for displaying visual information. The smallest diagonal size is 7 inches. A gadget with such dimensions easily fits in your hand. It is great for reading books. And if you have a good battery, it will hold a charge for a long time. The larger diagonal starts at 8.9 to 10 inches. The large screen allows you to view various video materials and movies without peering. Touch screen for data entry and controltablet. It is divided into the following types: resistor, capacitive, matrix, projected-capacitive, surface-acoustic wave screen and infrared beam screen. The main types of sensors used in tablet circuits have become the first three types due to their practicality and durability. The last two are extremely rarely used due to the high cost and complexity of management.
The motherboard is an important element in the tablet layout. This electronic "stuffing" includes: memory, processor, video accelerator and their connecting components. All these components are installed on the motherboard of the tablet. This is a very "capricious" module that can fail under the influence of moisture, temperature, voltage drops and other factors.
Charging your tablet
The last of the tablet scheme was the battery. They are divided into two types: lithium-ion and nickel-cadmium.
In most cases, Li-ion batteries are used to power the tablet. They have an advantage over NiCd batteries in terms of size (with the same capacity), are characterized by low self-discharge and low operating costs for the entire service life. However, they lose to them in terms of the speed of discharge at a negative temperature and the presence of a protection circuit built into the gadget.
External devices connected to the tablet
The first thing that connects to a mobile device is adapters. They provide power to the tablet and recharge the batteries.batteries. There is a special socket for this. Another thing that can be connected to the device is monitors and LCD TVs. Some of the tablets are even equipped with HDMI ports, allowing you to watch videos in high quality. If the gadget does not have the ability to connect HDMI, then you can try to do it via Bluetooth or Wi-Fi. For example, Samsung TVs have a Smart TV function that allows you to make such a connection. Connecting a mouse and keyboard is tricky. The fact is that not all tablets support OTG mode. It is this function that allows the gadget to recognize these devices. As a rule, information about the availability of such a possibility is available in the passport of the mobile device. There are no special problems with connecting a flash drive. All you have to do is plug it into a USB port and use it with ease. It also simply connects an audio headset, speaker system and portable speakers to a special socket on the tablet. There is also the possibility of connecting and wireless headphones. This requires only an additional modem. The development of the gaming industry required the use of joysticks in tablets as well. But you need to know that not all games support this device. Wireless Internet connects using Wi-Fi. This requires a modem connected to the USB port.
Best tablet model
According to Yandex. Market, the most popular model in 2017 was the Microsoft Surface Pro. This gadget has a Core i7 processor on board, which is very impressive. It has 256 GB of internal memory in the base version. But if desired, you can install an additional slot formemory cards. The screen with a diagonal of 12.3 inches demonstrates a resolution of 2736 x 1824. There are two cameras: 8 MP main and 5 MP front. The manufacturer guarantees 13.5 hours of continuous video viewing without recharging the battery. There is “support” for the keyboard, which makes the device closer to a netbook. The only downside is the price. It starts from 103,000 rubles.
Conclusion
Despite the fact that the schemes of tablets from different manufacturers differ from each other, they perform the same functions: maintaining a cellular connection and acting as a multimedia entertainment center, as well as working on the Internet. We can definitely say that the tablet occupies the middle stage between the phone and the laptop. At the same time, due to the increase in the "power" of the electronic "stuffing", he constantly strives for a laptop.
