Bit FAQs:

Q: Is a bit a basic unit of information in computing and digital communications?

A: Yes.

Q: Is a bit a portmanteau of binary digit?

A: Yes.

Q: Are bits transmitted one at a time in serial transmission?

A: Yes, and by a multiple number of bits in parallel transmission.

Q: Is a bit equivalent to the unit shannon?

A: Yes, and named after Claude Shannon.

Q: Is a bit a quantum system that can exist in superposition of two classical bit values?

A: Yes.

Q: Is a bit encoded as the presence or absence of a microscopic pit on a reflective surface?

A: Yes.

Q: Was a bit represented by the polarity of magnetization of a certain area of a ferromagnetic film?

A: Yes, and or by a change in polarity from one direction to the other.

Q: Is a bit typically defined as the uncertainty of a binary random variable that is 0 or 1 with equal probability?

A: Yes, and or the information that is gained when the value of such a variable becomes known.

Q: Are bits commonly called one byte?

A: Yes, and but historically the size of the byte is not strictly defined.

Q: Was a bit often stored as the position of a mechanical lever or gear?

A: Yes, and or the presence or absence of a hole at a specific point of a paper card or tape.

Q: Is a bit usually represented by an electrical voltage or current pulse?

A: Yes, and or by the electrical state of a flip-flop circuit.

Q: Is a bit not defined in the International System of Units?

A: Yes, However, the International Electrotechnical Commission issued standard IEC 60027, which specifies that the symbol for binary digit should be bit, and this should be used in all multiples, such as kbit, for kilobit.

Q: Are bits encoded as the thickness of alternating black and white lines?

A: Yes.

Q: Are bits used in the punched cards invented by Basile Bouchon and Jean-Baptiste Falcon?

A: Yes, and developed by Joseph Marie Jacquard , and later adopted by Semen Korsakov, Charles Babbage, Hermann Hollerith, and early computer manufacturers like IBM.