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bit

vr.tr.bit · thing-q8805

Let an agent handle bits as information units by meaning, grouping, prefixes and use in codes.

Thing Registry Cross-cutting context XCT.QTY
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Unit What a bit is.

Value

0 or 1.

Value

Bit value.

  1. What does the bit represent here? definition
  2. In which encoding? definition

Grouping

Bytes and words.

Grouping

Grouping.

  1. How many bits are in the unit used? measurement
  2. Is it a byte or word? definition
Measurement Sizes and rates.

Prefixes

Decimal and binary.

Prefixes

Prefixes.

  1. Is the prefix decimal (kilo) or binary (kibi)? boundary
  2. What is the exact value? measurement

Rate

Bits per second.

Rate

Data rate.

  1. Is the speed in bits or bytes per second? boundary
  2. How does it convert? measurement
Codes Error detection.

Parity

Check bits.

Parity

Parity bits.

  1. How does a parity bit detect errors? definition
  2. What errors can it miss? boundary

Error correction

Codes.

ECC

Error-correcting codes.

  1. Which error-correcting code is used? definition
  2. How many errors can it correct? measurement
Theory Information.

Entropy

Information content.

Entropy

Information content.

  1. How many bits of information does this message carry? measurement
  2. Under which model? definition

Quantum

Qubits.

Quantum

Qubits.

  1. Is a qubit meant instead? boundary
  2. How does it differ? definition

Classifiers Filled

Family
Thing Registry
Category
Cross-cutting context
Entry kind
thing
Plane
XCT
Domain
XCT.QTY
Other names and narrower kinds
sign bit, word mark, parity bit, Moderate Density Parity-Check

What it is Filled

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.

Why it exists Filled

Let an agent handle bits as information units by meaning, grouping, prefixes and use in codes.

Distinguishing features Filled

  • Binary unit
  • Unit of information and storage
  • Bits per second measures data rate
  • Different from byte

What robots and AI may and may not do Filled

Must not

  • Mix up bits and bytes when stating data rates or storage sizes.
  • Confuse decimal and binary prefixes in a way that misleads buyers.
  • Flip or corrupt bits in data it does not own.

Only with a human decision

  • Changing bits in safety-critical firmware or records.

May

  • Convert and report quantities in bits and bytes, stating decimal or binary prefixes.
  • Explain how bits encode information.

Moral aspects Filled

  • Misstated capacities and speeds mislead consumers.
  • All digital records rest on bits being stored faithfully.

Who is affected

  • Users of digital systems
  • Buyers of storage and connections

Owners Filled

Steward

Nobody: a unit of information held in common.

Links to other meta-models Filled

parent

  • Q309314 - registry parent class

related

  • unit of information - category
  • byte - unit
  • binary digit - digit
  • information theory - field

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.bit
  • Wikidata: Q8805 (https://www.wikidata.org/wiki/Q8805)
  • IEC 80000-13 symbol: bit unit

Direct properties not applicable Not applicable

  • byte: 8 bits - conventional octet

Plane XCT: no invented physical properties.

Recognition optional Filled

  • Values 0 and 1
  • Symbols b (bit) versus B (byte)
  • Prefixes such as kbit, Mbit, Kibit
  • Not visible; stored as physical states such as voltages or magnetisation.

Capabilities and actions required Filled

  • count and convert bits and bytes
  • use binary and decimal prefixes correctly
  • detect errors with parity bits
  • measure information in bits

Hazards and failure modes required Filled

  • Confusing bits and bytes in speeds
  • Mixing decimal and binary prefixes

Standards and interfaces required Filled

  • IEC 80000-13 (binary prefixes)
  • ISO/IEC 2382 vocabulary

Context of use required Filled

  • Representing and transmitting digital information.
  • data bits
  • parity and check bits
  • sign bits
  • qubits (quantum analogue)

Sources Filled

  1. Wikidata item Q8805: bit - identity and sense of the item
  2. Wikipedia: Bit - general description of the item

Open questions

  • Should qubits be a separate entry?
  • How should prefixes be linked?
  • How should parity codes be linked?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q8805/spec.json