Storage Flashcards
What is ROM?
ROM (Read Only Memory) is a special memory chip that can store data even without power; it is non-volatile.
What is the primary function of ROM?
ROM is used by a computer to store the boot sequence instructions necessary for starting up and loading the operating system.
How does the CPU use ROM during startup?
When the computer is switched on, the CPU accesses data in the ROM to start the computer and load the operating system.
Can the data in ROM be easily overwritten by the user?
No, the data on ROM cannot easily be overwritten by the user.
What is RAM?
RAM (Random Access Memory) is needed to store programs that are currently being used by copying the necessary data for processing.
What type of memory is RAM?
RAM is volatile memory, meaning it loses data when there is no power.
What do secondary storage devices do?
Secondary storage devices save information and commonly store the operating system, user applications, and user documents.
What are common types of secondary storage devices?
Common types include magnetic hard drives (HDD) and solid state drives (SSD).
What is the main advantage of SSDs over HDDs?
SSDs tend to have better performance due to the lack of physical motion.
How do hard drives store data?
Hard drives use a magnetic medium to store data on a hard drive platter, with data read and saved using a read/write head.
What is the typical RPM for hard drives?
A common speed for hard drives is 7200 RPM, but it can vary.
What is flash storage?
Flash storage uses flash memory to store data and can retain its state once power is disconnected.
How do optical drives store data?
Optical drives use lasers to burn microscopic indentations into a disc, creating a pattern that represents binary data.
What is RAID?
RAID (Redundant Array of Independent Discs) is a technology that allows multiple drives to be combined to act as a single drive.
What is defragmentation?
Defragmentation is the process of reorganizing fragmented files to improve speed and efficiency of available storage.
