Memory of a bacteria

Size of E. coli Bacteria

It has been found that a small bacteria namely Escherichia coli (E. coli), having a cross-sectional area of approximately 2µm2, has the memory of about 9.2 megabit. (Simpson, Saylor, Fleming, & Applegate, 2001)

Megabit is a multiple of the unit “bit”, which represents the smallest unit of information handled by the computer. A combination of eight bits makes up a byte, which is used to show any character such as a letter of alphabet e.g. “D” or a question mark. (Here “D” represents one byte of information i.e. eight bits of information.) This 9.2 megabit is equal to 1.15 megabytes (MB) of memory.

If we increase the cross sectional area of Escherichia coli and make it equal to the area of a Blu-ray disc, which is equal to 0.0113m2 (if the diameter of the disc is 12 cm i.e. 4.72 inches) having 25 GB of storage capacity per layer then E. coli will have the memory of about 6345214.844 GB which represents the per layer memory or storage capacity of about 253809 Blu-ray discs.

You can imagine this large number by imagining that if you place all these Blu-ray discs, of about 1.2 mm thickness each, on one another you will make a 304.57 meter high tower of Blu-ray discs.

This little example represents one of the most beautiful works of ALLAH in this entire universe. Infact ALLAH has made all the things of the universe very beautifully. ALLAH has mentioned in Holy Quran:

There are certainly Signs in that for people who believe.

(Holy Qur’an, Surah An-Nahl (The Bee), Surah # 16: Ayah # 79), (Surah Al-Naml (The Ants), Surah # 27: Ayah # 86), (Surah Ar-Rum (The Romans, The Byzantines), Surah # 30: Ayah # 37)

Reference and Further Reading:

Simpson, M. L., Saylor, G. S., Fleming, J. T., & Applegate, B. (2001). Whole-cell biocomputing. TRENDS in Biotechnology , 317-323.

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