WHAT IS RAM AND ROM IN SMARTPHONE??

Memory on the device be it a pc, laptop, the smartphone is actually divided into 2 RAM and ROM. ROM on Smartphones, divided into 2 IE internal memory (internal ROM) and external memory (external ROM) that is usually in the form of physical the form of micro SD card, SD Card, etc.

RAM

Own RAM stands for Random Access Memory. The hardware on this one can be said to be a memory which is only temporary. RAM is measured in magnitudes megabytes to gigabytes. RAM is essentially a place which contains the data of the application that is running. Because its only temporary, the data in RAM is lost when the device or smartphone volatile which means the data in RAM is not written permanently. In addition, the RAM needs the power to store data.

ROM stands for reading Only Memory. ROM is a type of memory that can be read-only and can not be filled or writeable data. The data must be done using a special process. The type of data in the ROM of the nonvolatile memory is the kind of meaning that data permanently written in ROM and not erased when the power source goes out.

The function of the RAM and ROM

RAM serves to handle or run various commands (multitasking) applications that are running. The analogy is getting bigger capacity RAM the more data that can be stored and the many processes that run multitasking as well as the faster in the execute certain features or the system. Unlike the case with computers, the RAM on a smartphone can't be enlarged, added or replaced, while ROM function itself is as a place to store internal data that is used to put the operating system as well as the entire system- the existing system in it. RAM is not used as a storage application, but rather to help establish a process in the execution. In laymen can be said that the processor cannot perform the process of reading the data directly to Rome.

smartphone RAM that's why RAM size is not as big as ROME. While working processors to move the required data into RAM, data that resides in RAM which can be read and manipulated directly by the processor. So, for example, there is an application of 1 GB (1000 MB) in Rome, and at the moment it is also available free space in RAM 100 MB, then to read the application processor must bring data from ROM 10 times as much, to be able to read the whole application. If the free space in RAM for 250 MB, then to read the whole data of 1 GB of ROM, processors need only ordered RAM to resolve as much as 4 times only. The fewer effort data retrieval from Rome to the processor by the RAM, then it is obviously the less time it takes to execute an application. It can be concluded that the greater the size of the RAM, it will be the faster performance of the smartphone. Other functions of the RAM is as sports results data storage space while the execution time of the program is done. As with other types of execution, data execution results will be placed in RAM, until there is a command to move the data from RAM to ROM.

RAM on Smartphones

3 types of ROM

When talking about ROMs, actually not just discuss hardware but also software. Unlike most of the Operating System on the desktop, the format of the mobile OS install on the mobile device can be found in various types of ROM. ROM can be categorized into 3 namely, Stock ROMs, Manufacturer (Carrier Stock ROM) and Custom ROMs.

3.1) Stock ROMs

This is the type of the original OS from developers who are still in the form of default, have not undergone modifications. Stock ROM contains the look and functionality of the standard factory and there have been no changes added by other developers. An example of a Stock ROM can be found on Apple's IOS devices and Palm's new Web OS where software developers and mobile devices are one company.

3.2) Manufacturer or Carrier Stock ROM

Types of ROM this one is a Stock ROM that has undergone changes by the manufacturer of the phone or the network operator. These changes occur more frequently for additions to the display, custom application from the manufacturer of the phone or the network operator, and the most important is a particular form of restriction made by the manufacturers of mobile phones or cellular operators, such as restrictions on the use of the area and others. An example of this type of ROM can be found on most Symbian and Android devices, as well as some Windows Phone 7 devices.

3.3) Custom ROM

Although a device that is sold contains two types of ROM above our ROMS, it doesn't stop here, user or independent developers generally fond of doing our ROM on their device over to release the results of the modification outside of the standard, and produce can be called custom ROMS. Google OS with his own concept of open source into an example that is nice, where the user can find a lot of custom ROM on Android.

In the case of closed source ROM like IOS and Windows Phone where our OS can hardly do, there are still many independent developers release a custom ROM is equipped with tools that support the functions and features over on the stock ROM the second OS such. And in fact, the development of the custom ROM from closed source IOS and Windows Phone more leads to the formation of a large community of Independent developers, such as forum XDA Developers. Android open source systems make it become freer to be in customization by anyone. Therefore, custom ROM on Android is available many on the internet for the purposes of our Android devices. Before you start to customization Android ROM, should the user need to know in advance the advantages and disadvantages of stock and custom ROM ROM ROM to decide which one is best for the characters of the use of smartphones? When decided to try custom ROM, the next problem is to choose a custom ROM is the best Android from the thousands that exist. There are 2 custom Android ROM name is quite popular and is recognized by its users because this is arguably a custom ROM capable and good, namely the CyanogenMod and MIUI.