Charles Babbage, sometimes referred to as the "father of computing".
A computer monitor provides a visual interface between the machine and the user.
Ada Lovelace published the first algorithm intended for processing on a computer.
The user interacts directly with hardware for the human input and output such as displays, e.g. through a graphical user interface. The user interacts with the computer over this software interface using the given input and output (I/O) hardware.
 
Software and hardware are matched so that the processing of the user input is fast enough, and the latency of the computer output is not disruptive to the workflow.

As a field of research, human–computer interaction is situated at the intersection of computer science, behavioral sciences, design, media studies, and several other fields of study.

- Human–computer interaction

Human–computer interaction investigates the interfaces through which humans and computers interact, and software engineering focuses on the design and principles behind developing software.

- Computer science
Charles Babbage, sometimes referred to as the "father of computing".

1 related topic with Alpha

Overall

Computer simulation, one of the main cross-computing methodologies.

Computing

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Any goal-oriented activity requiring, benefiting from, or creating computing machinery.

Any goal-oriented activity requiring, benefiting from, or creating computing machinery.

Computer simulation, one of the main cross-computing methodologies.
ENIAC, the first programmable general-purpose electronic digital computer

Major computing disciplines include computer engineering, computer science, cybersecurity, data science, information systems, information technology and software engineering.

The field of human–computer interaction focuses on the challenges in making computers and computations useful, usable, and universally accessible to humans.