PEBCAK - definição. O que é PEBCAK. Significado, conceito
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O que (quem) é PEBCAK - definição

TERM USED BY COMPUTER TECHNICIANS AS A ´JOKE´ FOR TO DEFINE WHEN A COMPUTER ERROR EXISTS BETWEEN THE KEYBOARD AND CHAIR
Pebkac; Id10t; PEBCAK; Pebcac; Pebcak; ID-Ten-T Error; Pebkap; ID10T; PIBKAC; PLBKAC; PEBCAC; ProblemBetweenMonitorChair; EBKAC; User Error; 1d10t; ID 10 T; Pebkacs; PICNIC; POBCAC; PEBMAC; EBCAK; PEBKAM; Intended behavior; Intended behaviour; PEBKAC; Operator error; Pbkac; ID-10t; User problem; Skill issue

PEBCAK         
Problem Exists Between Chair And Keyboard (Reference: slang)
pebcak         
Problem Exists Between Chair And Keyboard.
A computer user who is really too stupid to own one.
Used by techies to describe to other techies the true nature of the problem.
The guy on line 3 thinks the problem is his screensaver, but I think it's just a PEBCAK.
PEBCAK         
<humour> (Or "PEBKAC") Tech support shorthand for "Problem Exists between Chair and Keyboard". See also UBD. (1998-08-27)

Wikipédia

User error

A user error is an error made by the human user of a complex system, usually a computer system, in interacting with it. Although the term is sometimes used by human–computer interaction practitioners, the more formal human error term is used in the context of human reliability.

Related terms such as PEBMAC ("problem exists between monitor and chair"), identity error or ID-10T/1D-10T error ("idiot error"), PICNIC ("problem in chair, not in computer"), IBM error ("idiot behind machine error") and other similar phrases are also used as slang in technical circles with derogatory meaning. This usage implies a lack of computer savviness, asserting that problems arising when using a device are the fault of the user. Critics of the term argue that the problems are caused instead by poor product designs that fail to anticipate the capabilities and needs of the user.

The term can also be used for non-computer-related mistakes.