Computers vs Machines

When to use each in English, with meaning, register, and examples.

Computers

Top 1,000 (very common)

Machines

Top 2,000 (common)
Most common: Computers
 ComputersMachines
Pronunciation🇬🇧 //kəmˈpjuːtəz//🇺🇸 //kəmˈpjutɚz//🇬🇧 //məˈʃiːnz//🇺🇸 //məˈʃinz//
MeaningMachines that process information and perform tasks.Devices that use power to perform work.
ExampleMany businesses rely on computers for daily operations.The factory has many different **machines** for assembling products.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
Collocationspowerful computers, personal computers, mobile computers, computer systems, desktop computersheavy machines, industrial machines, printing machines, electronic machines, farming machines
Antonymshumans, naturehumans, organic, nature
Common mistakesConfusing 'computer' (singular) with 'computers' (plural)., Using 'computer' to refer to both hardware and software aspects., Assuming 'computers' only refer to desktop models.'Machinery' is often incorrectly used as a synonym for 'machines.', Confusing 'machine' as a countable noun and forgetting the plural form., Using 'machines' when referring to non-mechanical devices.
Usage notesUse 'computers' in both formal and informal settings. It's appropriate in discussions about technology, work, and education but avoid overly technical jargon unless the audience is familiar.Use 'machines' in contexts related to technology, manufacturing, or tasks performed using devices. Avoid using in very casual speech unless discussing technology.

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Computers
Machines

Frequently asked questions: Computers vs Machines

What's the difference between Computers and Machines?

Computers: Machines that process information and perform tasks. Machines: Devices that use power to perform work.

Which is more common: Computers and Machines?

Computers is the most common in everyday English.

Can you show an example of each?

Computers: Many businesses rely on computers for daily operations. Machines: The factory has many different **machines** for assembling products.

Can I use Computers and Machines interchangeably?

Not always. Computers and Machines are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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