A tablet is a portable device with a touch screen of 7 inches or more, with an operating system that allows you to install programs.
Tablet computers appeared a long time ago, but became a truly mass device with the advent of the first generation of the iPad.
The advantage of a tablet over other devices is that, on the one hand, it is compact enough to carry it with you without thinking about weight and size, and, on the other hand, it is convenient for watching videos, reading books, in a word, everything that requires big enough screen.
Modern tablets are usually developed on the basis of the same operating systems as smartphones, albeit with a slightly more complicated interface.
The main characteristics that you should pay attention to when choosing a tablet:
Tablets, unlike smartphones, are not handheld devices, and therefore the screen sizes here can be very different.
The minimum display size of a tablet is 7 inches — anything less is considered a phablet (a hybrid of tablet and smartphone).
Tablet Samsung Galaxy Tab A 7.0
The next size — 8 inches, allows you to make the device quite compact, and at the same time functional. This format has, for example, iPad mini.
Tablet Huawei Mediapad M3 Lite 8
10 inches is a “large” tablet format, convenient for working with graphics, watching videos and other work that requires good visibility of the image.
Tablet Lenovo Tab 4 TB-X304L
12 inches and above — the format of professional tablets that can replace a laptop when working with applications. However, such a tablet is equivalent in portability to a small laptop.
Tablet Apple iPad Pro 12.9
As you can see, each format has its advantages and disadvantages. The size of the tablet is selected individually, for example, a child will be more comfortable with 7–8 inches.
Of course, a large screen on any device contributes to the viewing experience. But in addition to the size of the image, its quality is also important.
The main characteristic that is responsible for the quality of the image on a digital display is resolution.
Resolution is the number of pixels used on the screen (expressed either as pixels per inch or as the number of horizontal pixels times the number of vertical pixels).
Accordingly, the higher the screen resolution, the more detailed picture it can potentially display.
An operating system is a software package with which the tablet works. The interface, ways of downloading files, installing programs, in fact, all the main actions depend on it.
The main operating systems that are used in tablets are as follows:
The most versatile operating system, spread thanks to the giant Google. The advantage of Android is full customizability, integration of the main Google applications, the ability to upload any files.
Used by Apple in their devices, it is highly stable, secure and has a beautiful interface.
It is characterized by an interface similar to the one you see on a regular personal computer, however, the capabilities of desktop Windows are present here in a somewhat truncated form.
Battery capacity and battery life
A tablet is a device that is used to watch videos, play games, and do other tasks that require a lot of power. Therefore, the battery capacity is very important for him, the larger it is, the longer the device will work without power from the outlet.
Most often, the battery capacity is indicated in ampere-hours, for example, for 10-inch tablets it is 7000 mAh and higher.
Apple indicates the capacity in watt-hours, which is a more correct approach, since this indicator takes into account the voltage (we all remember from the school curriculum that electrical power is equal to the product of voltage and current).
The full name of the devices in question — “tablet computer” — already indicates that this is a complex device that has a computer architecture with all its inherent attributes — a processor, RAM, and so on. Let’s take a look at these components.
The processor is the “brain” of a portable computer that performs the calculations on which most operations are based. Any program consists of code that is executed by the processor. For a modern tablet, simple operations will be working with text, arithmetic calculations, browsing the Internet, playing music. All these tasks can be performed without problems on a weak processor. A more difficult task is, for example, three-dimensional games — they use the processor “to the fullest”.
To compare two different processors with each other, you need special applications called benchmarks, such as AnTuTu Benchmark. They evaluate the power of the device in some conditional points, a higher number of which indicates higher performance.
All files and data of programs with which the tablet is currently working are placed in RAM. Measured in gigabytes. It rarely determines the performance of the tablet, but other things being equal, you can take it into account. RAM is the easiest characteristic of a tablet to understand: the larger it is, the better, the technical details of its design are not so important.
Read-only memory is used for storing files and installing programs, as well as for the operating system itself. If the tablet is constantly connected to high-speed Internet, and you watch streaming video on it and listen to music from the Internet, then permanent memory is not so important. Otherwise, we recommend not saving on permanent memory.
When buying any device, not only its characteristics are important to us, but also its appearance. Only manufacturers of unnamed devices from Aliexpress now save on the quality of materials.
In budget tablets, the body can be made of plastic. We all know the advantages of this material: it is easy to give it any shape, color, texture. However, plastic is short-lived and fragile.
In the highest quality tablets, metal is used — it is wear-resistant, looks solid and gives strength to the case.
Additional features and connectors
Of course, all tablets have a headphone jack and USB for connecting to a computer.
Also, modern tablets are charged via USB-connector.
This is a feature that allows the USB of the tablet to work as a universal USB connector for various devices. Through a special OTG cable, you can connect storage media, a computer mouse, a modem and other peripheral devices to the tablet.
The HDMI connector is a popular high quality digital output. Allows you to output the image from the tablet to an external display with an HDMI input (TV or monitor). For example, you can run a video on the device and watch it on the TV screen using the tablet as a media player.
Memory card slot
Do you like watching movies, listening to music, downloading them as files and saving them on your portable device? Then the presence of a MicroSD slot for memory cards will allow you not to run into a situation where the tablet’s memory is full, you feel sorry for deleting something from there, and there is nowhere to upload a new one. It will be enough to buy a USB flash drive and insert it into the tablet.
A transformer is called a hybrid of a tablet and a laptop, in which a docking station with a keyboard can be attached to the tablet.
The iPad was not the first tablet, but it was he who opened this class of devices to the masses. He formed their main features: touch control, the use of a mobile operating system, the highest quality display.
Now, perhaps, everyone has managed to try out this class of devices: for some it turned out to be indispensable, but for others it is not really needed. But in any case, tablets are the most productive and technological class of portable devices.