When the power is turned off it loses its data (Volatile). Unless your work is saved, all data is lost when the computer is switched off. 2. Question : Which of the following types of memory loses data when power is switched off? The memory unit stores the binary information in the form of bits. Made up of many addressable locations. Generally, memory/storage is classified into 2 categories: Volatile Memory: This loses its data, when power is switched off. Also known as Immediate Access Store and Primary Memory. RAM is a type of volatile memory because it will lose its data if the power is turned off. Random access - Random Access means that any part of the memory can be accessed as quickly as any other part of the memory. Explanation: There are many types of memory available in the computers which are classified as two categories namely Volatile memory and Non-Volatile memory. Main memory of a computer that temporarily stores data, applications and the operating system whilst in use. A. Non-volatile random-access memory (NVRAM) is random-access memory that retains data without applied power. A memory unit is the collection of storage units or devices together. Fast - RAM is much faster to access than secondary storage such as Hard Disk Drives (HDDs). CCC Online Test. ROM (Read Only Memory) – It stands for Read Only Memory.ROM is a Permanent Type memory.Its content are not lost when power supply is switched off. There’s a good chance that if you flick the power to your computer off and bring it right back on the contents of your RAM will still be there. When power is switch off' it will lose its data such type of memory is classified as RAM. Magnetic tape B. Static Random Access Memory C. Magnetic disk D. CD-ROM Solution B. Static Random Access Memory Download. Volatile - RAM is volatile. RAM is known as a volatile memory. data are lost after the removal of power. Random access memory (RAM) is a general-purpose memory which usually stores the user data in a program. b)Dynamic RAM– Dynamic RAM also known as DRAM, its stored information in a very short time (a few milliseconds) even though the power supply is ON.The Dynamic RAM are cheaper and moderate speed and also they consume less power. Dogan Ibrahim, in Designing Embedded Systems with 32-Bit PIC Microcontrollers and MikroC, 2014. RAM memory is volatile in the sense that it cannot retain data in the absence of power, i.e. ROM is a type of memory that retains its data even without power, so even when the computer is switched off, it will not lose the data which is saved onto it. The non-volatile memory saves the data when the power is off. It is — and it isn’t. This means that it will lose its contents when power is lost (i.e. if the computer is switched off). 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