minicomputer
LowTechnical/Historical
Definition
Meaning
A computer of medium power and size, smaller than a mainframe but larger than a microcomputer, typically used by small to medium-sized organizations in the 1970s–1990s.
A now largely historical term for a class of multi-user computers that filled the gap between mainframes and personal computers, often running proprietary operating systems and used for departmental computing, scientific applications, and process control.
Linguistics
Semantic Notes
The term is strongly period-specific, closely associated with computing in the 1970s and 1980s. It is now mostly encountered in historical or technical discussions rather than current product descriptions, having been functionally replaced by servers, workstations, and high-end personal computers.
Dialectal Variation
British vs American Usage
Differences
No significant semantic or usage differences exist; the term is identical in both varieties.
Connotations
Both carry the same technical/historical connotations.
Frequency
Equally low frequency in both varieties, used primarily in technical or historical contexts.
Vocabulary
Collocations
Grammar
Valency Patterns
The [organisation] used a minicomputer for [task].The [model] was a popular minicomputer.Minicomputers were often used to [function].Vocabulary
Synonyms
Neutral
Weak
Vocabulary
Antonyms
Usage
Context Usage
Business
Historical: 'The accounting department processed invoices on a dedicated minicomputer.'
Academic
Used in history of technology or computer science: 'The rise of the minicomputer democratised access to computing power.'
Everyday
Rare. Possibly used by older generations recalling past technology: 'My first job involved programming a room-sized minicomputer.'
Technical
Precise reference in historical or legacy system contexts: 'The laboratory's data acquisition system was built around a PDP-11 minicomputer.'
Examples
By Part of Speech
adjective
British English
- minicomputer-era
- minicomputer-based system
American English
- minicomputer industry
- minicomputer architecture
Examples
By CEFR Level
- This old machine is a minicomputer.
- Before PCs, many businesses used a minicomputer in their office.
- The DEC PDP-11, a seminal minicomputer, influenced a generation of software design.
- The minicomputer market declined rapidly in the late 1980s with the advent of powerful, networked microcomputers and reduced instruction set computing (RISC) workstations.
Learning
Memory Aids
Mnemonic
Think MINI-COMPUTER: It's a miniaturised version of the huge mainframe computers that came before it, but it's still a proper multi-user computer, not a personal microcomputer.
Conceptual Metaphor
A BRIDGE or MISSING LINK between the giant, institutional mainframe and the personal microcomputer.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with 'миникомпьютер' as a direct equivalent for a modern small laptop or tablet. The Russian term is a false friend; the true historical referent is 'мини-ЭВМ' (мини-электронно-вычислительная машина).
Common Mistakes
- Using it to refer to any small modern computer like a laptop or Raspberry Pi.
- Confusing it with a 'mainframe' or 'microcomputer'.
- Using it as a current, active term instead of a historical one.
Practice
Quiz
Which of the following is the most accurate description of a minicomputer?
FAQ
Frequently Asked Questions
No. A minicomputer was a multi-user system for small organisations. A personal computer (microcomputer) is typically single-user. The 'mini' refers to being smaller than a mainframe, not to being a small PC.
The Digital Equipment Corporation (DEC) PDP-11 and VAX series, the Data General Nova, and the IBM System/3 and AS/400 (considered midrange) are classic examples.
The specific class of 'minicomputer' is obsolete. Their functions are now served by servers (cloud, rack-mounted, tower), high-end workstations, and clusters of smaller machines.
The minicomputer was largely supplanted by the combination of: 1) The rising power and networking capabilities of microcomputers (PCs), 2) The development of powerful RISC-based workstations and servers in the late 80s/early 90s, and 3) The shift towards client-server architectures.
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