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Which of the following best describes the role of PCB in a computer system?
An input device for transferring data
A physical board connecting electronic components
A protocol used in wireless networks
A software tool for virus removal
A software tool for virus removal
In the context of computer hardware, PCB stands for Printed Circuit Board, which is a physical substrate used to mechanically support and electrically connect electronic components. It is not a software tool; therefore, the provided official answer is factually incorrect as it describes security software rather than hardware.
In the context of computer hardware, PCB stands for Printed Circuit Board, which is a physical substrate used to mechanically support and electrically connect electronic components. It is not a software tool; therefore, the provided official answer is factually incorrect as it describes security software rather than hardware.
A PCB is like the skeleton and nervous system of a computer; it holds everything in place (skeleton) and provides the paths for electrical signals to travel (nervous system).
R=╧БALтАЛ тАФ Resistance calculation for conductive traces on the board where ╧Б is resistivity, L is length, and A is cross-sectional area.
A PCB is manufactured by laminating conductive layers of copper onto non-conductive substrate material, such as fiberglass or resin. Components are mounted and connected through etched copper traces, pads, and features, allowing for complex electrical signal paths and power distribution within VccтАЛ and Ground GND planes.
PCB stands for Printed Circuit Board.
It acts as the physical foundation for almost all modern electronic devices.
It facilitates electrical connectivity through copper pathways.
It is a hardware component, not a software virus remover.
Compact size and space saving
High reliability and consistency in production
Ease of maintenance and component replacement
Permanent design after fabrication
Environmental impact due to toxic materials used in etching
Computer motherboards
Smartphone circuit controllers
Option B is the correct scientific description of a PCB.
Option D is factually wrong because PCB refers to a hardware board, whereas antivirus programs are software utilities.
B is correct тАФ PCB (Printed Circuit Board) is a physical hardware board used to mount and electrically connect electronic components, making Option B the accurate definition.
In competitive exams, always prioritize technical definitions over provided official answer keys if an obvious factual error exists, but verify the context to ensure the term doesn't have an obscure alternative meaning.