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An introduction to computer systems and internet basics. It covers topics such as computer hardware, software, storage devices, and input/output devices. It also explains the different types of software, including system software and application software. Additionally, it discusses the basics of the internet, including search engines, e-commerce, online banking, collaboration tools, and social networking. The document concludes with an explanation of the World Wide Web and domain names.
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Computer data storage is referred to as storage or memory, which can save digital data. Examples are RAM, hard disks, CDs, DVDs and removable flash memory sticks. Permanent, or non-volatile, storage devices do not require power to remember the data stored. Mass storage devices, like your hard disk, are non-volatile; a loss of power does not affect their ability to retain data. This category also includes ROM (Read Only Memory).
Software is a set of programs, which is designed to perform a well-defined function. A program is a sequence of instructions written to solve a particular problem. There are two types of software System Software Application Software