Memory

• What does memory contain in a computer?

  All instructions that the CPU follows
• What happens without memory in a computer?

  The computer wouldn't know what to do
• What does RAM stand for?

  Random Access Memory
• What is the primary use of RAM in a computer?

  It serves as the main memory
• Can RAM be read and written to?

  Yes, it can be read and written to
• What type of memory is volatile?

  RAM is volatile memory
• What is volatile memory?

  Temporary memory that requires power
• What is non-volatile memory?

  Permanent memory that retains data
• What does non-volatile memory do?

  It keeps its contents without power
• What is the main memory used for data storage?

  Where all data and programs are stored
• What happens when a computer boots up?

  The operating system is copied to RAM
• What is the role of secondary storage during booting?

  It provides data copied to RAM
• What happens to applications when they are opened?

  They are copied from secondary storage to RAM
• Where do applications stay while in use?

  In RAM until they are closed
• How does RAM compare to CPU cache?

  RAM is slower than CPU cache
• What is virtual memory?

  Secondary storage used as extra RAM
• What happens when RAM is full?

  The computer needs additional storage space
• What does the CPU need to do with data stored in virtual memory?

  It must move data back to RAM
• Why is moving data from virtual memory to RAM slow?

  Because of the data transfer rates
• What is a common application of memory?

  Data storage in virtual memory
• What happens when a CPU needs to store data in virtual memory?

  It must move data back to RAM
• Why is transferring data to RAM slower than accessing it directly?

  Data transfer rates are much slower
• How does virtual memory affect computer performance when switching applications?

  It can slow down response times
• What is ROM in the context of computer memory?

  Read-Only Memory
• What is the characteristic of ROM memory?

  It is non-volatile and cannot be written to
• What does BIOS stand for?

  Basic Input Output System
• What is the role of BIOS in a computer?

  It initializes hardware during boot-up
• How does the CPU interact with ROM during the boot process?

  The CPU reads instructions from ROM
• What happens when the computer is powered on?

  The CPU reads instructions from ROM
• What type of memory is controlled by firmware?

  Embedded systems memory
• What does the CPU do after reading instructions from ROM?

  It performs self-checks and setups
• How does the CPU verify the memory is functioning correctly?

  Through self-checks and tests
• What can the CPU do with the BIOS once it is loaded?

  It can copy the operating system to RAM
• What is a characteristic of the BIOS?

  It is a type of firmware
• What does the BIOS contain?

  Instructions for booting the computer
• How does the CPU utilize ROM during the boot process?

  It reads instructions to start the system
• What does updating the BIOS do ?

  It can improve system performance and compatibility
• What is the function of a ROM chip?

  To store firmware permanently
• What does it mean that ROM is non-volatile?

  It retains data without power
• What is the relationship between RAM and BIOS during boot-up?

  BIOS initializes RAM for use