MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -RAM is given the term ‘random access’ because data and instructions can be stored and accessed from any location within the memory ). RAM is used to hold data and instructions that are currently in use. In a modern PC, RAM is used to hold the operating system and any open documents and programs that are running.

Detailed explanation-2: -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-3: -The operating system is normally stored on the hard drive, but you can load an operating system from a USB drive or a CD instead.

Detailed explanation-4: -RAM stands for random-access memory, but what does that mean? Your computer RAM is essentially short term memory where data is stored as the processor needs it. This isn’t to be confused with long-term data that’s stored on your hard drive, which stays there even when your computer is turned off.

Detailed explanation-5: -Both RAM and ROM are used to store data for direct access by the CPU. However, only RAM is volatile, meaning its data is deleted once the system has been powered down, whereas ROM is non-volatile, meaning it keeps its data after the system has been powered down.