There are ii types of retentiveness inwards a computer: RAM (Random Access memory) together with ROM (Read Only memory)
ROM (Read Only Memory) is used for booting upwards the reckoner together with to operate initial diagnostics. Let us direct hold an example, BIOS (basic input together with output system) is stored inwards ROM. BIOS controls everything when the reckoner is switched on. It checks for hardware errors together with charge basic software earlier the operating organisation takes the control. Simply it is a permanent retentiveness setting for starting the computer.
RAM ((Random Access Memory) charge the operating organisation together with drivers for item devices, charge an application program, create, alter together with shop information together with close downward the computer. Programs are loaded inwards RAM that’s why nosotros need to salve the information oft otherwise it loses information when ability is turned off.
RAM vs ROM
RAM | ROM |
Stands for Random Access Memory | Stands for Read Only Memory |
It keeps operating system, application program, information inwards use | It contains programs used for booting upwards the reckoner together with to operate initial diagnostics. |
Data inwards RAM tin forcefulness out last accessed inwards whatever club an tin forcefulness out last modified (changed or deleted) | ROM is fixed or information cannot last modified (read solely memory) |
RAM retentiveness holds information temporarily land the programme is beingness used | ROM is a fixed retentiveness organisation together with nigh indestructible |
RAM is volatile (It loses information when ability is turned off) | ROM is non-volatile (retains information fifty-fifty when ability is off) |
Higher units of infinite recommended upwards to GB (meant for running application programs) | Storage capacity non an result every bit it is non used inwards running application programs |
Cheaper | More expensive |
RAM is fast | ROM retentiveness is extremely fast compared to ROM |
Types of RAM-dynamic RAM & static RAM | Types of ROM: PROM (programmable read-only memory) similar CD ROM, EPROM, (Erasable Programmable Read-only Memory) EEPROM.(Electrically Erasable Programmable Read-Only Memory) . |
Example of RAM: RAM chips similar 2GB, 4GB, 8GB etc of unlike companies similar Corsair, Kingston etc. | Example of ROM: cartridge inwards video game consoles, reckoner BIOS. |
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