Apple ipad 32gb wi fi full specifications. Information on the type of speakers and audio technology supported by the device

Width information - refers to the horizontal side of the device in its standard orientation during use.

Height information - refers to the vertical side of the device in its standard orientation during use.

Information about the thickness of the device in different units measurements.

Information about the weight of the device in different units of measurement.

The approximate volume of the device, calculated based on the dimensions provided by the manufacturer. Refers to devices with a rectangular parallelepiped shape.

GSM (Global System for Mobile Communications) is designed to replace the analog mobile network (1G). For this reason, GSM is often referred to as a 2G mobile network. It is enhanced by the addition of GPRS (General Packet Radio Services) and later EDGE (Enhanced Data rates for GSM Evolution) technologies.

CDMA (Code-Division Multiple Access) is a channel access method used in communications in mobile networks... Compared to other 2G and 2.5G standards like GSM and TDMA, it offers faster data transfer rates and the ability to connect more consumers at the same time.

CDMA2000 is a group of 3G mobile network standards based on CDMA. Benefits include stronger signal strength, fewer interruptions and outages, support analog signal, wide spectral coverage, etc.

UMTS stands for Universal Mobile Telecommunications System. It is based on the GSM standard and refers to 3G mobile networks. Developed by 3GPP and its biggest advantage is to provide more speed and spectral efficiency thanks to W-CDMA technology.

LTE (Long Term Evolution) is defined as a technology fourth generation(4G). It is developed by 3GPP based on GSM / EDGE and UMTS / HSPA with the aim of increasing the capacity and speed of wireless mobile networks. The subsequent development of technologies is called LTE Advanced.

A system on a chip (SoC) integrates various hardware components such as a processor, graphics processor, memory, peripherals, interfaces, etc., as well as the software necessary for their functioning.

Information about technological process on which the chip is made. The value in nanometers is half the distance between the elements in the processor.

The main function of the processor (CPU) of a mobile device is to interpret and execute instructions contained in software applications.

The bit size of the processor is determined by the size (in bits) of registers, address buses and data buses. 64-bit processors offer better performance than 32-bit processors, which in turn are more efficient than 16-bit processors.

Instructions are commands with which the software sets / controls the operation of the processor. Information about the instruction set (ISA) that the processor can execute.

The cache memory is used by the processor to reduce the time it takes to access more frequently used data and instructions. L1 (level 1) cache is small and is much faster than both system memory and other levels of cache. If the processor does not find the requested data in L1, it continues to look for it in the L2 cache. On some processors, this search is performed simultaneously in L1 and L2.

L2 (level 2) cache is slower than L1, but instead has a larger capacity to cache more data. It, like L1, is much faster than system memory (RAM). If the processor does not find the requested data in L2, it continues to look for them in L3 cache memory (if available) or in RAM memory.

The processor core executes program instructions. There are processors with one, two or more cores. Having more cores increases performance by allowing multiple instructions to execute in parallel.

The clock speed of a processor describes its speed in cycles per second. It is measured in megahertz (MHz) or gigahertz (GHz).

A graphics processing unit (GPU) handles computation for a variety of 2D / 3D graphics applications... IN mobile devices ah, it is used most often by games, consumer interface, video applications, and more.

Like a processor, a GPU is made up of several working parts called cores. They process graphical calculations different applications.

Random access memory (RAM) is used by the operating system and all installed applications. The data that is saved in the RAM is lost after the device is turned off or restarted.

Information about the type of random access memory (RAM) used by the device.

One of the main characteristics of the screen is the technology by which it is made and on which the image quality of information directly depends.

On mobile devices, screen size is expressed in terms of the length of its diagonal, measured in inches.

Approximate screen width

Approximate screen height

The aspect ratio of the long side of the screen to its short side

Screen resolution indicates the number of pixels horizontally and vertically on the screen. More a high resolution means sharper image detail.

Information about the number of pixels per centimeter or inch of the screen. Higher density allows information to be shown on the screen in clearer detail.

Screen color depth reflects the total number of bits used for color components in one pixel. Information about the maximum number of colors that the screen can display.

The approximate percentage of the display area on the front of the device.

Information about other functions and features of the screen.

Resolution is one of the main characteristics of cameras. It represents the number of horizontal and vertical pixels in the image. For convenience, smartphone manufacturers often quote resolutions in megapixels, indicating the approximate number of pixels in millions.

Information about the maximum video resolution that the camera can record.

Information about the maximum recording rate (frames per second, fps) supported by the camera at maximum resolution. Some of the most basic video recording speeds are 24 fps, 25 fps, 30 fps, 60 fps.

Battery capacity indicates the maximum charge it can store, measured in milliampere-hours.

The type of battery is determined by its structure and, more precisely, by the chemicals used. Exist different types lithium-ion and lithium-ion-polymer batteries are most commonly used in mobile devices.

Talk time in 2G is the period of time during which the battery charge is completely discharged during a continuous conversation on a 2G network.

Standby time in 2G is the period of time during which the battery charge is completely discharged when the device is in stand-by mode and connected to a 2G network.

Talk time in 3G is the period of time during which the battery charge is completely discharged during continuous talk on a 3G network.

Standby time in 3G is the period of time during which the battery charge is completely discharged when the device is in stand-by mode and connected to a 3G network.

Information about some additional characteristics device battery.

The SAR level indicates maximum amount electromagnetic radiation to which the human body is exposed if the mobile device is held at hip level. The highest SAR value for mobile devices in Europe is 2 W / kg per 10 grams of human tissue. This standard established by the CENELEC committee in compliance with ICNIRP guidelines from 1998 and IEC standards.

The SAR level indicates the maximum amount of electromagnetic radiation to which the human body is exposed if the mobile device is held at hip level. The highest SAR value in the United States is 1.6 W / kg per gram of human tissue. This value is set by the FCC and CTIA monitors mobile devices for compliance with this standard.