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because that's all they had but now we have didital ones that are better

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13y ago

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Before the 1940's all of the calculating devices were mechanial because why?

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What did people use before oil?

Before oil there was not need for lubrication as there were no engines or other mechanical devices to lubricate.


Were there any computers before Jesus Christ was even born?

Not as we now know them. There were, however, devices for calculating and then there was the human brain ...


What were the calculating devices before the invention of computer?

The earliest recorded calculating device is the abacus. Used as a simple computing device for performing arithmetic, the abacus most likely appeared first in Babylonia (now Iraq) over 5000 years ago.


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Written and verbal. It will be several hundred years before mechanical devices are invented.


What is pre mechanical period devices?

The pre-mechanical period refers to the early stages of information processing before the invention of mechanical devices. During this time, information was primarily recorded and transmitted through manual methods, such as writing on clay tablets, papyrus, and parchment. Key devices from this era include the abacus, which facilitated basic arithmetic calculations, and early counting devices like tally sticks. These tools laid the groundwork for more advanced mechanical innovations that followed in later periods.


Why must mechanical digestion start before mechanical digestion?

Mechanical digestion must come first because it helps break down food


What was oil used for before cars?

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What is a pre mechanical age and examples?

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Why must mechanical digestion start before chemical digestion?

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What is over travel protection?

Over-travel refers to the mechanical distance beyond where something is intended to be useful. Some devices use "limit switches" to stop the driver before the moved object exceeds the useful limit and enters "over-travel". Other devices use mechanical stops and rely upon some other means to detect the condition and avoid overload.


What is pre mechanical era?

The pre-mechanical era refers to a period before the invention of mechanical devices and systems, where manual labor and non-mechanized processes were predominantly used. This era witnessed innovations in areas like agriculture, architecture, and transportation that laid the foundation for later mechanical advancements. Examples include the use of simple tools, water or wind-driven machinery, and basic forms of communication.