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Test your knowledge of ZIP archives, lossless compression, extraction, compression ratios, multipart files, and archive safety.
Start exercisesTest your knowledge of computer hardware basics, including CPUs, RAM, motherboards, storage drives, graphics cards, and power supplies.
Start exercisesTest your knowledge of operating systems, including OS functions, GUI, multitasking, security, hardware, Linux, Windows, macOS, and mobile OS.
Start exercisesTest your internet browsing fundamentals, including web browsers, URLs, refresh shortcuts, private browsing, hyperlinks, bookmarks, and homepages.
Start exercisesTest your basic informatics knowledge: CPU, RAM, operating systems, input/output devices, files, antivirus, and Python.
Start exercisesTest your knowledge of Microsoft Office applications, including Word, Excel, PowerPoint, Outlook, Access, formatting, charts, and macros.
Start exercisesTest essential computer skills with questions on CPU, RAM, operating systems, software, web browsers, URLs, antivirus, and HTTP.
Start exercisesTest your basic computer skills with questions on CPU, RAM, operating systems, input devices, storage, files, browsers, and more.
Start exercisesTest your macOS Finder skills, from opening windows and changing views to using Spotlight, renaming files, and accessing drives.
Start exercisesTest your Windows 11 virtual desktops knowledge, including Task View, desktop management, wallpapers, moving windows, and shortcuts.
Start exercisesTest your computer networking basics with questions on IP, TCP, routers, packets, subnet masks, OSI layers, wireless technology, and topology.
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