Hardware and software can malfunction and computer systems can be down.
硬件和软件可能出现故障，计算机系统可能不能正常工作。
Computer hardware and software systems always called c.
计算机硬件系统和软件系统总称为c。
What computer systems and software do you know?
你熟知什么电脑系统和软件？
Home and business security systems and certain computer software and hardware fall into this category.
家用和商用安全系统及某些计算机软件和硬件都属于这类。
Home and business security systems and certain computer software and hardware fall into this category.
家用和商用安全系统及某些计算机软件和硬件都属于这类。
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