bit
Let an agent handle bits as information units by meaning, grouping, prefixes and use in codes.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
Let an agent handle bits as information units by meaning, grouping, prefixes and use in codes.
The basic unit of information in computing and digital communications, having one of two values, 0 or 1; bits are grouped into bytes and words, and special bits include sign and parity bits.
What it is for: Representing and transmitting digital information.
It can be count and convert bits and bytes; use binary and decimal prefixes correctly; detect errors with parity bits; measure information in bits.
Distinguishing features
Binary unit
Unit of information and storage
Bits per second measures data rate
Different from byte
What it looks like
Not visible; stored as physical states such as voltages or magnetisation.
Physical character
byte: 8 bits - conventional octet
How it is recognised
Values 0 and 1
Symbols b (bit) versus B (byte)
Prefixes such as kbit, Mbit, Kibit
Related models
is a kind of - category
is grouped into - unit
is represented by - digit
is related to - field
In practice
Families and kinds
data bits
parity and check bits
sign bits
qubits (quantum analogue)
Identifiers
IEC 80000-13 symbol bit unit
Standards and regulation
IEC 80000-13 (binary prefixes)
ISO/IEC 2382 vocabulary
Failure modes and hazards
Confusing bits and bytes in speeds
Mixing decimal and binary prefixes
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.bit-2
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Unit What a bit is.
Units need care.
Value
0 or 1.
Value
Bit value.
- What does the bit represent here? definition
- In which encoding? definition
Grouping
Bytes and words.
Grouping
Grouping.
- How many bits are in the unit used? measurement
- Is it a byte or word? definition
Measurement Sizes and rates.
Prefixes confuse.
Prefixes
Decimal and binary.
Prefixes
Prefixes.
- Is the prefix decimal (kilo) or binary (kibi)? boundary
- What is the exact value? measurement
Rate
Bits per second.
Rate
Data rate.
- Is the speed in bits or bytes per second? boundary
- How does it convert? measurement
Codes Error detection.
Extra bits protect data.
Parity
Check bits.
Parity
Parity bits.
- How does a parity bit detect errors? definition
- What errors can it miss? boundary
Error correction
Codes.
ECC
Error-correcting codes.
- Which error-correcting code is used? definition
- How many errors can it correct? measurement
Theory Information.
Bits measure information.
Entropy
Information content.
Entropy
Information content.
- How many bits of information does this message carry? measurement
- Under which model? definition
Quantum
Qubits.
Quantum
Qubits.
- Is a qubit meant instead? boundary
- How does it differ? definition
What the second pass must settle
- Should qubits be a separate entry?
- How should prefixes be linked?
- How should parity codes be linked?