If the device contains the optional hard disk drives, it will have two additional fans.

如果设备包含可选硬盘驱动器，将会有额外两个风扇。

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If you have a newer-style 64-bit PC, which can use more memory, you'll need at least two gigabytes of memory and 20 gigabytes of free hard disk space.

如果你有一个更新款的64位电脑（这种电脑可以利用更多的内存），你将需要至少2G的内存和20G的可用硬盘空间。

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The MacBook comes equipped with a 250 GB hard disk drive, 8x "SuperDrive, " Gigabit Ethernet, two USB ports and mini DisplayPort to connect an external monitor.

MacBook笔记本配有250G硬盘驱动器，8倍光驱，超高速以太网，2个USB接口，以及与外接显示器相连的迷你显示端口。

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They also found a Compaq personal computer holding on its hard disk some two gigabytes of encrypted data.

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With these two mergers the total number of companies manufacturing hard disk drives (HDDs) will decline from five to three, with Toshiba, Seagate and Western Digital as the surviving players.

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Apple Inc. ( AAPL) and Seagate Technologies ( STX), a hard disk drive company, are his top two holdings, and Dell ( DELL) is his tenth largest.

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