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User facts & stats

7 fact-checked facts about computer users and interfaces, each with the reason behind it. 5 more are in today's round and join this page after it closes.

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The basics

What is the most common English keyboard layout named after its first six letters?

AnswerQWERTY

QWERTY is named after the first six letters on the top letter row.

In most desktop software, what does the shortcut Ctrl+Z do?

AnswerUndo the last action

Ctrl+Z is the near-universal undo shortcut; Ctrl+C copies and Ctrl+V pastes.

Going deeper

On Unix-like systems, what is the all-powerful administrator account called?

Answerroot

The root account has full control of a Unix-like system, so it is used with care.

What does two-factor authentication require?

AnswerTwo different kinds of proof, like a password plus a code

2FA combines something you know with something you have or are, making accounts harder to break into.

What is a tooltip?

AnswerA small info box that appears when you hover over an item

Tooltips pop up briefly on hover to explain what a button or icon does.

Expert level

In interface design, what does WIMP stand for?

AnswerWindows, icons, menus, pointer

WIMP describes the classic desktop interface style built around windows, icons, menus and a pointer.

In CAPTCHA, what does the first letter 'C' stand for?

AnswerCompletely

CAPTCHA means Completely Automated Public Turing test to tell Computers and Humans Apart.

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