Difference Between Brain and Computer

Human BodyComputer ScienceMemory

In this post, we will understand the difference between brain and computer −


  • It is constituted with neurons and synapses.

  • The memory growth of a brain increases every time synaptic links are connected.

  • The brain has a built-in backup system.

  • It has a memory power of about 100 teraflops (approx. 100 trillion calculations/seconds)

  • The memory density of the brain is 107 circuits/cm3.

  • The energy consumption is 12 watts of power.

  • The information is stored as electrochemical and electric impulses.

  • The weight of the brain is around 3.3 pounds.

  • The volume of the brain is 1500 cm3.

  • The information is transmitted using chemicals that fire the action potential in the neurons.

  • The information processing ability of the brain is low.

  • The input or output equipment is the sensory organs.

  • It is self-organized.

  • It implements massive amounts of parallelism.

  • It is reliable, and self-maintaining.


  • It can be constructed using IC, transistors, diodes, capacitors, and transistors.

  • The memory growth of the computer can be increased by adding memory chips to it.

  • The backup systems are manually constructed.

  • It has a memory power of about 100 million megabytes.

  • It has a memory density of 1014 bits/cm3.

  • The energy consumption is in terms of gigawatts of power.

  • The information is stored in numeric and symbolic form (as in binary bits).

  • Its size and weight varies depending on type system- from a few grams to tons.

  • The communication happens using electrical coded signals.

  • It has the ability to process large amounts of information.

  • The input and/or output equipment includes keyboards, mouse, web cameras.

  • It has a pre-programmed structure.

  • It has limited parallelism.

  • Since it performs a monotonous job, it can’t rectify its mistakes on its own.

Updated on 24-Apr-2021 07:46:19