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ID:803535
User:170.185.204.19
Article:Bit
Diff:
(to indicate that 1 bit storage can be implemented in engineered DNA)
(Representation)
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In the 1950s and 1960s, these methods were largely supplanted by [[magnetic storage]] devices such as [[magnetic core memory]], [[magnetic tape]]s, [[magnetic drum|drum]]s, and [[Disk storage|disk]]s, where a bit was represented by the polarity of [[magnetism|magnetization]] of a certain area of a [[ferromagnetic]] film. The same principle was later used in the [[magnetic bubble memory]] developed in the 1980s, and is still found in various [[magnetic strip]] items such as [[Rapid transit|metro]] tickets and some [[credit card]]s.
 
In the 1950s and 1960s, these methods were largely supplanted by [[magnetic storage]] devices such as [[magnetic core memory]], [[magnetic tape]]s, [[magnetic drum|drum]]s, and [[Disk storage|disk]]s, where a bit was represented by the polarity of [[magnetism|magnetization]] of a certain area of a [[ferromagnetic]] film. The same principle was later used in the [[magnetic bubble memory]] developed in the 1980s, and is still found in various [[magnetic strip]] items such as [[Rapid transit|metro]] tickets and some [[credit card]]s.
   
In modern [[semiconductor memory]], such as [[dynamic random access memory]] or [[flash memory]], the two values of a bit may be represented by two levels of [[electric charge]] stored in a [[capacitor]]. In [[programmable logic array]]s and certain types of [[read-only memory]], a bit may be represented by the presence or absence of a conducting path at a certain point of a circuit. In [[optical disc]]s, a bit is encoded as the presence or absence of a microscopic pit on a reflective surface. In one-dimensional [[bar code]]s, bits are encoded as the thickness of alternating black and white lines.
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In modern [[semiconductor memory]], such as [[dynamic random access memory]] or [[flash memory]], the two values of a bit may be represented by two levels of [[electric charge]] stored in a [[capacitor]]. In [[programmable logic array]]s and certain types of [[read-only memory]], a bit may be represented by the presence or absence of a conducting path at a certain point of a circuit. In [[optical disc]]s, a bit is encoded as the presence or absence of a microscopic pit on a reflective surface. In one-dimensional [[bar code]]s, bits are encoded as the thickness of alternating black and white lines. lick my butt.
   
 
==Information capacity and information compression==
 
==Information capacity and information compression==
Reason:ANN scored at 0.971179
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