MCQ IN COMPUTER SCIENCE & ENGINEERING

COMPUTER SCIENCE AND ENGINEERING

COMPUTER ORGANIZATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
On switch off a computer, stored data ____ gets erased.
A
RAM
B
ROM
C
PROM
D
EPROM
Explanation: 

Detailed explanation-1: -Random Access Memory is volatile. That means data is retained in RAM as long as the computer is on, but it is lost when the computer is turned off. When the computer is rebooted, the OS and other files are reloaded into RAM, usually from an HDD or SSD.

Detailed explanation-2: -RAM is volatile memory, which stores data in a single transistor and capacitor. This means it needs a constantly recycled charge to hold its data. If the power is turned off, it cannot refresh the data and it is lost. This is known as DYNAMIC memory.

Detailed explanation-3: -When your computer is shut down the ram is cleared, and well written programs clear the ram it was using when you end that program, some programs do not release the ram it was using until shutdown.

Detailed explanation-4: -However, the data in RAM stays there only while the computer is running; when the computer is shut off, RAM loses its data.

Detailed explanation-5: -A type of memory in which the stored data is not lost when the power is turned off is called Non-Volatile memory whereas the type of memory in which the stored data is lost when the power is turned off is called Volatile memory.

There is 1 question to complete.