BIOS (Basic Input/Output System) and UEFI (Unified Extensible Firmware Interface) are types of firmware stored on a computer’s motherboard that start the computer and prepare it to run the operating system.
When you turn on a computer, BIOS or UEFI:
Performs a hardware check (called POST – Power-On Self Test)
Initializes hardware like CPU, RAM, keyboard, and storage devices
Loads the operating system from the hard drive into memory
BIOS
The traditional and older firmware system
Works in a basic text mode
Has limited features and supports smaller disk sizes
UEFI
The modern replacement for BIOS
Faster and more powerful
Supports large hard drives and modern hardware
Provides a graphical interface and better security features (like Secure Boot)
Conclusion:
BIOS and UEFI are essential startup programs that initialize hardware and load the operating system, with UEFI being the advanced and modern version of BIOS.
A network adapter is a hardware device that enables a computer to connect to a network, such as the internet or a local area network (LAN). It allows the computer to send and receive data by converting digital data into signals that can be transmitted over network cables or wireless connections, and then converting incoming signals back into usable data. Network adapters can be wired (Ethernet) or wireless (Wi-Fi), and they are essential for communication between computers and other devices on a network.
Snapchat permanently deletes an account 30 days after deactivation if you don’t log in during that period, removing all your data, Snaps, Chats, and friends.
To fix a hypervisor error in Windows 11 permanently, enable virtualization (Intel VT-x/AMD-V) in BIOS, disable Hyper-V if not needed via Windows Features, turn off Memory Integrity in Windows Security, and ensure Windows and drivers are fully updated.
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A file in a computer is a collection of data or information stored on a storage device (like a hard drive, SSD, or USB drive) under a specific name.
Think of it like a digital document. A file can contain different types of data, such as:
Each file has:
For example, report.docx is a file that likely contains a document created in a word processor.