C. system software
if it means drivers and so on
The answer is Every six months
A battery acts as the brain of a car and is used to power almost everything. It can last up to five years. However, this lifespan will depend on how well the battery is maintained and the type of weather conditions you live in. Aim to check your car battery at least twice a year. Actually, it is best to check your battery regularly and not to wait for your mechanic to test your battery during routine servicing.
1. Motherboard (you plug all other components to it)
2. Processor (CPU)
3. Memory (RAM)
4. Graphics card
5. Sound card (sometimes integrated with motherboard)
6. Hard Disk Drive (HDD)
7. Power supply unit
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Difficulty Level Chart: https://www.coinwarz.com/difficulty-charts/ethereum-difficulty-chart
