1.2.1 Primary Storage (Memory)

• RAM is a type of primary storage that is volatile
• What type of access does RAM use?

  Random access
• The capacity of secondary storage is typically larger than primary storage.


  True
• ROM is non-volatile, meaning it retains data even when the power is off.
• What is the purpose of secondary storage in a computer system?

  Long-term data retention
• What is the purpose of primary storage in a computer system?

  Internal storage for the CPU
• Data in ROM is lost when the power is turned off.

  False
• Primary storage has faster access speeds compared to secondary storage.
• Why is RAM considered volatile memory?

  Data is lost when power is off
• RAM is modifiable, while ROM is not modifiable by the user.


  True
• ROM contains pre-programmed data essential for starting the computer.
• What does volatile memory mean in the context of RAM?

  Data is lost when power is off
• How does the CPU access data in RAM?

  Random access
• RAM provides random access, allowing the CPU to directly access any memory location
• What is the purpose of ROM in a computer system?

  Stores pre-programmed data
• Secondary storage has a larger capacity than primary storage.


  True
• RAM is volatile, meaning data is lost when the power is off
• What type of access does RAM provide?

  Random access
• Primary storage consists of RAM and ROM.

  True
• RAM provides random access, unlike ROM.
• What is the volatility of RAM?

  Volatile
• What is the volatility of ROM?

  Non-volatile
• DDR SDRAM transfers data on both the rising and falling edges of the clock
• Match the RAM type with its characteristic:

  SDRAM ↔️ Synchronizes with system clock

  DDR SDRAM ↔️ Transfers data on both clock edges
• RAM uses random access, while ROM uses sequential access.
• What are the two main types of primary storage in a computer?

  RAM and ROM
• RAM is a type of volatile memory that stores data the CPU needs for current processes
• RAM is volatile, while ROM is non-volatile.


  True
• What happens to data in RAM when the power is turned off?

  Data is lost
• RAM is volatile, while ROM is non-volatile.


  True
• The access speed of primary storage is faster than secondary storage
• What type of data does secondary storage typically store?

  Data not currently in use
• ROM is non-volatile
• What does ROM typically contain?

  Boot sequence and firmware
• What happens to data in RAM when power is turned off?

  Data is lost
• What does RAM store needed by the CPU?

  Current data and instructions
• ROM is a type of non-volatile primary storage that contains pre-programmed data and instructions such as the BIOS
• The contents of ROM cannot be modified by the user.


  True
• How does DDR SDRAM compare to SDRAM in terms of data rate?

  Doubles the data rate
• What is the key difference between SDRAM and DDR SDRAM in data transfer?

  DDR SDRAM transfers on both clock edges