Facepalm: How well do you know your shortcut keys? Do you use Ctrl + Shift + T to reopen a recently closed browsing tab? What about Ctrl + Shift + Esc to open the task manager directly? Maybe not, but surely most computer users are familiar with the long-used and universal Ctrl + C and Ctrl + V for copying and pasting, respectively? Not in Japan, where a new survey shows 40% of students are unfamiliar with these keys, and almost 20% don't know any shortcut keys at all.

Menter, part of White Inc. Japan , conducted the survey to discover how familiar students in the Asian nation are with some of the more popular keyboard shortcuts.

The most well-known of these was Ctrl + C, with a still surprisingly small 62.6% knowing it was used to copy data. Even more surprising is that a lower percentage, 59.2%, knew that Ctrl + V is used to paste the copied data.

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The third best-known shortcut among the students is the undo recent action shortcut, Ctrl + Z. Just 30.6% of participants said they are familiar with this combo, half the number of those who know how to copy and paste using keys.

The next four entries on the list – Ctrl + X (cut), Ctrl + S (save), Ctrl + A (select all), Ctrl + P (print) – were all known by around 27% of those surveyed. While Ctrl + N, used to open a new window, document, etc., is bottom of the list, familiar to just 16.8% of students.

The final question asked how many students knew no shortcut keys at all, not even copy and paste. It turns out that 19.8% of students in Japan have no idea what any of them do.

It should be noted that the survey sample size is quite small at 519 students, and 5.8% said they own neither a laptop nor a desktop.

The copy and paste keys are so heavily used by some professions that it led to programming website Stack Overflow creating The Key . Originally an April Fool's Day joke, the 3-key keyboard consisting of Ctrl, C, and V keys proved so popular that it was updated with a new RGB version.

Thanks, Tom's Hardware