Vendor lineage
IBM - the century company
Punched cards to System/360 to the PC to Red Hat: the company the rest of the industry defined itself against.
For most of computing's history, IBM was the industry: the tabulating monopoly, the $5 billion System/360 bet that created the mainframe world, the PC that accidentally crowned Microsoft and Intel, and the services turnaround that saved it. Its networking fingerprints - SNA, Token Ring - run through several other pages in this section, and the 2019 Red Hat acquisition ties it to the open-source lineage told there.
The profile compresses eleven decades into the moments that shaped this industry, Token Ring wars included.
Founding stories
IBM (formed as CTR)
IBM began as a 1911 holding-company merger - scales, time clocks, and Herman Hollerith's census tabulators - that Thomas Watson Sr. forged into International Business Machines by 1924. For most of computing's history IBM simply was the industry: the tabulating monopoly, the mainframe, the disk drive, the relational model, the PC. Every other company in this section defined itself with, against, or inside IBM's shadow - including the Token Ring war told on the Madge page, and the open-source era it finally joined by buying Red Hat.
The timeline
- Watson's THINK machine
CTR becomes IBM under Thomas Watson Sr. - punched-card tabulation as the world's data infrastructure, and a sales culture the industry would imitate for a century.
- System/360: the $5 billion bet
One compatible architecture from small to large - the gamble that created the mainframe world, the software industry that ran on it, and the compatibility concept computing still lives by.
- The PC, and the giveaway
The IBM PC legitimizes personal computing overnight - and its open architecture plus outsourced DOS and processor crown Microsoft and Intel, the most consequential make-versus-buy decision in business history.
- Gerstner
After the largest corporate loss in American history to that date, Lou Gerstner keeps IBM whole and pivots it to services - the elephant learns to dance, and the integrated-solutions model defines its next two decades.
- Red Hat: $34 billion
July 9, 2019: the largest software acquisition to that date closes - IBM buys the open-source standard-bearer for hybrid cloud, the story told from the other side on this section's Red Hat page. Arvind Krishna, the deal's architect, becomes CEO in 2020.
- Kyndryl, and the focused IBM
The managed-infrastructure business spins off as Kyndryl; what remains is hybrid cloud, AI (watsonx), quantum, and the eternal mainframe - the z-series still clearing the world's transactions.
Flagship products and solutions
- IBM Z and PowerThe mainframe and enterprise-systems lineage - System/360's direct descendants, still running the banks.
- Red Hat and hybrid cloudOpenShift and RHEL as the hybrid-cloud platform - the 2019 bet as the current strategy's core.
- watsonx and quantumThe AI platform and the quantum program - the research company IBM never stopped being.
Key innovations
- Compatibility itselfSystem/360 invented the idea that software outlives hardware generations - the covenant the entire industry now operates under.
- The research engineThe relational model, DRAM, the disk drive, RISC, FORTRAN, SQL: IBM Research invented more of this industry's foundations than any institution except Bell Labs.
Main markets
IBM sells hybrid cloud, AI, and enterprise systems to the world's largest institutions - a focused century-company whose networking past (SNA, Token Ring) and open-source present (Red Hat) both thread through this section.
Analyst standing
- The company the analyst industry was practically invented to cover - a fixture of every enterprise evaluation for as long as evaluations have existed.