Multiple choice

Most of the errors blamed on computers are actually due to

  1. Programming errors

  2. Hardware fatigue

  3. Defects in floppy disks

  4. Data entry errors
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Historically, many supposed 'computer errors' were actually human data entry mistakes - incorrect keystrokes, transposed numbers, wrong values entered. The phrase 'garbage in, garbage out' (GIGO) became famous because flawed input produces flawed output regardless of computer correctness. Programming bugs (software errors) and hardware failures do occur, but data entry errors were historically most common.

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