ROM (Read Only Memory / Internal Memory)
ROM is Read Only Memory In the internal storage, a specific part is made ROM, which is not accessible to users and can not be written on it, it is called Read Only Memory. The remaining part of the internal storage is the space in which you save media files, documents and any of your data.
The ROM part of the Internal Storage is where there is an Android or other operating system store, and with it some pre-installed apps are also saved in some section of the user which can not be removed. This is the reason that you do not get free internal memory from your personal purpose. Some of the companies that claim mobile companies go for OS and pre-installed app and you get free space.
Another related Smartphone terms:
4G | Smartphone | Network Technology | Network Speed | GPRS | EDGE | Body | Dimensions | Weight | Sim | Sim Slots | Display | Resolution | Pixel density (PPI) | Sensors | Protection | Camera | Android | OS (Operating System) | CPU | GPU | Chipset | ROM | RAM | WLAN | Bluetooth | GPS | Browser | Battery