BIOS, ROM, and Memory Types Unlocked
BIOS, ROM, and Memory Types Unlocked
Items in this lesson
BIOS, ROM, and Memory Types Unlocked
What do you already know about BIOS and ROM?
Learning Objectives
At the end of the lesson you will be able to: - Explain what BIOS is and its purpose - Explain what ROM is and its purpose - Tell the difference between volatile and non-volatile memory - Describe the role of BIOS and ROM in a computer system
What is BIOS?
BIOS stands for Basic Input/Output System. It contains the commands needed to start the computer. BIOS runs from a ROM chip and appears as you power up the computer.
What Can BIOS Do?
In BIOS, you can set the boot order, add a password for secure boot, control hardware like sound cards, set the date and time, and save any changes before restarting.
Advanced BIOS Features
BIOS allows overclocking, which speeds up the CPU. Overclocking can improve speed but may cause damage if not watched carefully. BIOS is now often replaced by UEFI, a modern version with more features.
What is ROM?
ROM stands for Read-Only Memory. It stores important information that does not change when the computer turns off. ROM is ideal for holding BIOS because it keeps data safe and uneditable by users.
Volatile vs Non-Volatile Memory
Loses data when power is off. Example: RAM (Random Access Memory).
Non-Volatile Memory
Keeps data even when power is off. Example: ROM (Read-Only Memory).
Volatile Memory
Uses of ROM in Everyday Life
ROM is found in many devices—like printers, microwaves, and old game consoles. The software stored is called firmware, giving basic instructions for the device to work.
Write down 3 things you learned in this lesson.
Write down 2 things you want to know more about.
Ask 1 question about something you haven't quite understood yet.
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