Random access memory – it is the RAM (RAM), it is also an opertivka. Serves for temporary storage of data with which the central processor works. Surely some are asking the question “why?”, Because there is a hard drive, there is memory in the processor. The answer is simple, the need to store more and more operational data is constantly growing and the processor memory (cache) is very small for that, with regards to the hard disk, some data is stored on it, but only a part, the speed of RAM is much faster than the speed of working with hard disk, because RAM is used.
The main characteristics of RAM are: memory type, memory speed, timings, form factor, volume.
Type of memory – with the development of technology and computer technology, more and more types of memory appear, more precisely, newer ones remove old ones from the market. At the moment, DDR3 is common, although so Continue reading
Apple Pay: what is it and how to use it
Apple Pay is a payment system that allows you to pay for goods in stores by attaching an Apple mobile device to the terminal. The system works according to the NFC protocol and only on terminals that accept contactless payments (they must have a PayPass or PayWave label). The system is compatible only with models older than the iPhone 6, including the iPhone SE, as well as with the Apple Watch. In the latter case, the system will be able to configure through the iPhone 5, 5s and 5c.
To pay, you need to bring the gadget to the terminal, select the card in the application and attach your finger to the Touch ID sensor. On Apple Watch, a payment is launched by double-clicking on the power button and does not require special authorization. Neither Apple Pay nor other payment services charge Continue reading