Hardware failures refer to the malfunctioning of physical components in a computer or electronic device. These failures can occur due to various reasons, such as wear and tear, overheating, or manufacturing defects. Common examples include issues with the hard drive, power supply, or motherboard, which can lead to data loss or system crashes. When hardware fails, it often requires repair or replacement to restore functionality. Regular maintenance, such as cleaning and monitoring temperatures, can help prevent some failures. Additionally, using backup systems and redundant hardware can minimize the impact of unexpected hardware issues on operations.