COMPTIA

• TCP/IP is an open standard that allows any device or operating system to connect to a network using this protocol.
• TCP/IP is an open standard that allows any device or operating system to connect to a network using this protocol.
• When a computer is powered on, it needs a standard means for the CPU to start processing instructions and initialize the other components, a process referred to as bootstrapping or booting.
• The bootstrapping process occurs before the operating system software is loaded and is enabled by a low-level operating system called firmware.
• The BIOS (Basic Input/Output System) is an example of PC firmware.
• PC firmware provides industry standard program code to get the essential components of the PC running and ensures that the design of each manufacturer's motherboard is PC compatible.
• Newer motherboards may use a different kind of firmware called UEFI (Unified Extensible Firmware Interface).
• UEFI provides support for 64-bit CPU operation at boot, a full GUI and mouse operation at boot, and better boot security.
• A computer with UEFI may also support booting in a legacy BIOS mode.