The 12 jobs most at risk of being replaced by robots

The CEO of Taco Bell's parent company said Tuesday that machines could replace human workers in 10 years.

"I don't think it is going to happen next year or the year after, but I do believe that probably by the mid '20s to the late '20s, you'll start to see a dramatic change in sort of how machines run the world," Greg Creed, CEO of Yum Brands, told CNBC.

Yum owns a handful of fast-food companies including KFC, Taco Bell, and Pizza Hut.

The fast-food industry is already using technology to supplement or replace human workers through the use of tablets and smartphone apps that allow customers to order their food without interacting with any employees.

But robots and "smart" computers aren't just threatening the jobs of fast-food workers.

They could replace up to half the US workforce within the next decade or two, according to an Oxford University study from 2013.

The study identified more than 700 occupations at risk of computer automation.

Here are the jobs that are most at risk, based on the study.

Computerizable JobsOxford University data via Bloomberg News

Now see the most stressful jobs in America:

11 PHOTOS
The most stressful jobs in America
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The most stressful jobs in America

Broadcaster

Stress score: 47.93

(mediaphotos via Getty Images)

Taxi driver

Stress score: 48.18

Public relations executive

Stress score: 48.50

(Hero Images via Getty Images)

Corporate executive (senior)

Stress score: 48.56

(Chris Ryan via Getty Images)

Newspaper reporter

Stress score: 49.90

(mediaphotos via Getty Images)

Event coordinator

Stress score: 51.15

(Jupiter Images)

Police officer

Stress score: 51.68

(Juanmonino via Getty Images)

Airline pilot

Stress score: 60.54

(MatusDuda via Getty Images)

Firefighter

Stress score: 72.64

(stevecoleimages via Getty Images)

Enlisted military

Stress score: 72.74

(MivPiv via Getty Images)

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See Also:
Walmart's latest move confirms the death of the American middle class as we know it
Starbucks barista gets apology note and $50 bill from 'sassy' customer
We tried the fried fish sandwiches from the biggest names in fast-food — and the winner is clear

SEE ALSO: The company that owns Olive Garden just placed a $780 million bet on a tiny restaurant chain

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