1990 · Computer systems
Time-sharing made interactive computing available to multiple users.
Visual guide
Allocate processor time.
Separate users and resources.
Support interactive work.
Time-sharing helped establish the expectation that people could interact with a computer rather than wait for a batch of results.
Shared resources require isolation and coordination; apparent simultaneity does not imply unlimited capacity.
01 · The idea
Fernando Corbató led work on CTSS and Multics, systems that shared a computer’s resources among users. By switching between tasks and managing memory, files and access, a machine could appear responsive to several people. The challenge was not just scheduling time but providing a coherent, protected environment.
Time-sharing helped establish the expectation that people could interact with a computer rather than wait for a batch of results.
02 · The people
Fernando Corbató led pioneering time-sharing projects at MIT that allowed many users to interact with one computer. The Compatible Time-Sharing System and Multics explored how operating systems could share resources while preserving useful working environments for individual users. His leadership joined technical architecture with the organization of ambitious software projects. These systems influenced later operating systems and the expectation that computing should be an interactive service.
Read the biography ↗03 · Read further
Original explanations based on the official award record. The subject label is an editorial navigation aid.
Computer architecture became a quantitative study of useful work and trade-offs.
The story
Distributed systems need rules for ordering events and agreeing on state.
The story