CompTIA A+ 220-801

Category - 801: Laptops

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What is the physical size of the majority of PATA (IDE) hard drives in laptops?

1.3-inches wide.
2.5-inches wide.
3.5-inches wide.
4.7-inches wide.

Explanation

Answer: B - Most PATA (IDE) hard drives in laptops are 2.5-inches wide.

Key Takeaway: Although PATA (IDE) hard drives in desktop computers are normally 3.5-inches wide, due to space constraints the PATA (IDE) hard drives located in most laptops are 2.5-inches wide. Hard drives can be smaller, but none are less than 1.8-inches. Laptop hard drives also use a 44-pin IDE connector that includes data and power, as opposed to the desktop variety, which require a 40-pin connector for data and a Molex connector for power.

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