kilobit
C1Technical, historical computing, telecommunications
Definition
Meaning
A unit of information equal to 1024 bits (in computing) or 1000 bits (in telecommunications).
Refers to data transfer rates (e.g., kilobits per second) or memory/storage capacity in early digital systems. Often used historically or in specific technical contexts.
Linguistics
Semantic Notes
The meaning fluctuates between 1000 and 1024 depending on context (data rate vs. memory). Often superseded by 'kilobyte' or 'megabit' in modern usage.
Dialectal Variation
British vs American Usage
Differences
No significant lexical difference; the unit is standard in technical contexts globally.
Connotations
Neutral technical term. May evoke early computing or slow internet connections (e.g., 56k modem).
Frequency
Equally low in both varieties, limited to specific technical fields.
Vocabulary
Collocations
Grammar
Valency Patterns
[number] kilobit(s)[number] kilobit(s) per second (kbps)a [number]-kilobit connectionVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “Not applicable”
Usage
Context Usage
Business
Rare, except in historical context of telecommunications contracts.
Academic
Used in computer science, data communication, and networking courses.
Everyday
Virtually unused; laypeople refer to 'megabytes' or 'internet speed'.
Technical
Precise measurement in networking specs, legacy system documentation, and telecom engineering.
Examples
By Part of Speech
noun
British English
- The early modem had a maximum speed of 56 kilobits per second.
- The file was encoded at a rate of 128 kilobits for optimal quality.
American English
- This sensor transmits data at 250 kilobits per second.
- The old network card supported only 10 kilobit speeds.
Examples
By CEFR Level
- Older internet connections were measured in kilobits, not megabits.
- The protocol's overhead reduces the effective throughput to just 950 kilobits per second.
- Early satellite telemetry used a mere 4.8 kilobit data stream.
Learning
Memory Aids
Mnemonic
Think 'kilo' (thousand) + 'bit' (smallest data piece) = a thousand bits.
Conceptual Metaphor
DATA IS A MEASURABLE SUBSTANCE (transferred at a rate of X kilobits per second).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'килобит' (direct translation, same meaning). Beware of false friend 'килобайт' (kilobyte), which is 8 times larger.
Common Mistakes
- Using 'kilobyte' (KB) interchangeably with 'kilobit' (Kb). Confusing 1000 vs. 1024 bit definitions. Pronouncing it as /kaɪləbɪt/.
Practice
Quiz
In which context does a 'kilobit' most precisely equal 1024 bits?
FAQ
Frequently Asked Questions
A kilobit (Kb) is 1000 or 1024 bits. A kilobyte (KB) is 8 times larger—1000 or 1024 bytes, where 1 byte = 8 bits.
Modern data speeds and storage capacities are much larger, making megabits (Mb) and gigabits (Gb) more practical units for common use.
Yes, 'kbps' is the standard abbreviation for 'kilobits per second,' a unit of data transfer rate.
It depends. In telecommunications and data rates, it usually means 1000 bits. In computing memory contexts, it traditionally means 1024 bits (2^10), though this is now often clarified.