What are the first steps in booting a computer, the purpose of an I/O shield, and the best workbench for PC assembly?

a) What happens first during boot?
The correct option is B.
During the boot process, the Power-On Self-Test (POST) runs first. This test checks essential hardware components, including the RAM test, before attempting to load the operating system or connect to the internet.

b) What is the purpose of the I/O shield?
The correct option is B.
The I/O shield is a metal plate that fits into the back of a computer case. Its purpose is to protect ports and align motherboard ports with the openings in the case, preventing dust and electromagnetic interference.

c) What type of workbench is recommended for PC assembly?
The correct option is C.
A clean and sturdy non-metallic table is recommended for PC assembly. A non-metallic surface helps prevent electrostatic discharge (ESD), which can damage sensitive electronic components. A clean and sturdy surface ensures a safe and stable working environment.