Understanding Computer Storage

The video tutorial explains the necessity of secondary storage in computer systems. It covers the three types of storage: primary, secondary, and tertiary, highlighting their roles and differences. Primary storage includes registers, cache, ROM, and RAM, which are directly accessible by the processor. Secondary storage, such as hard drives, is essential for storing data and programs not in immediate use, especially when the power is off, as ROM is read-only and RAM is volatile. Tertiary storage is used for long-term backups and archiving. The video also discusses the key components of a computer system, including ROM, CPU, RAM, and hard drives, and explains how data is managed during power loss.

What are the three broad types of storage in a computer system?

• Primary, secondary, and quaternary

• Primary, secondary, and permanent

• Primary, secondary, and tertiary

• Primary, secondary, and temporary

Which type of storage includes registers, cache, ROM, and RAM?

• Secondary storage

• Tertiary storage

• External storage

• Primary storage

Why is secondary storage necessary in a computer system?

• Because ROM is read-only and RAM is volatile

• Because ROM is volatile and RAM is read-only

• Because ROM and RAM are both non-volatile

• Because ROM and RAM are both writeable

What is the purpose of tertiary storage?

• To store data temporarily

• To provide immediate access to the processor

• For long-term backup or archiving of files

• To store the operating system

Which type of storage is not covered in the GCSE specification?

• Tertiary storage

• Secondary storage

• Primary storage

• Temporary storage

What are the four important internal components of a computer system mentioned?

• ROM, CPU, RAM, and SSD

• ROM, GPU, RAM, and hard drive

• ROM, CPU, RAM, and motherboard

• ROM, CPU, RAM, and hard drive

Where does the CPU get its initial startup instructions from?

• Cache

• RAM

• ROM

• Hard drive

What happens to data in RAM when the computer loses power?

• It is transferred to cache

• It is saved to ROM

• It is saved to the hard drive

• It is lost

Why can't data be stored on ROM when the computer is shut down?

• Because ROM is too expensive

• Because ROM is too slow

• Because ROM is read-only and has very little size

• Because ROM is volatile

What is the main reason secondary storage is needed?

• For temporary storage of data

• For immediate access by the processor

• For storage of programs and data when the power is turned off

• For faster data processing