mainframe

Centralized processing giant

A mainframe is a large, powerful computer capable of processing vast amounts of data and supporting many simultaneous users—the workhorses of banks, airlines, and government agencies.

Before personal computers, mainframes dominated computing; users accessed them through terminals.

The term now often distinguishes centralized institutional computing from distributed systems: The company still runs its payroll on a mainframe.

computing

IBM

Multinational technology corporation

multiprogramming · big iron · green screen · terminal · punch card

enterprise

corporation

Legally separate business entity

integration · mission-critical · banking · insurance · data center · uptime · reliability · backend · batch jobs · workload

hardware

CPU

Main computing chip

channel · water-cooled · card reader · core memory · peripheral · controller · front panel · rack · power supply

performance

throughput

Processing rate over time

high-capacity · workhorse · scalability · parallelism · virtualization · availability · fault-tolerant · redundancy · nines

legacy

vintage

Quality from past eras

classic · archaic · relic · retro · old-school · migration · modernization · emulation · dinosaur · greenfield

Categories
Opposites
computing scale and architecture

mainframepersonal computer

Individual-use computing machine

PC · microcomputer · desktop computer · laptop · workstation

computing era and paradigm

mainframecloud computing

Internet-delivered digital infrastructure

edge computing · serverless · virtual machine · microservices · terminal

Phrases
Family

mainframes

Familiarity
Top 100,000
Profile
Used worldwide · Timeless · Concrete · Rated G