Audience versions of this page: FamilyOn September 9, 1947, computer scientist Grace Hopper reported the world’s first computer bug. A bug is a flaw or glitch in a system. Thomas Edison reported “bugs” in his designs as early as the 1800s, but Hopper was the first to identify one in a computer.In Hopper’s case, it was literally a bug. Her coworkers at Harvard University in Cambridge, Massachusetts, found that their computer was delivering consistent errors. When they opened the computer’s hardware, they found . . . a moth. The trapped insect had disrupted the electronics of the computer.
Term Part of Speech Definition Encyclopedic Entry bug Noun
mistake or flaw in a computer program.
device designed to access data, perform prescribed tasks at high speed, and display the results.
computer science Noun
study of the design and operation of computer hardware and software, and the applications of computer technology.
maintaining a steady, reliable quality.
to transfer or hand over.
devices or tools that use electricity to work.
person who plans the building of things, such as structures (construction engineer) or substances (chemical engineer).
mistake or error.
to work or work correctly.
to recognize or establish the identity of something.
to influence or have an effect on something.
activity that produces goods and services.
type of animal that breathes air and has a body divided into three segments, with six legs and usually wings.
person who creates a new idea, machine, product, device, or process.
exactly what is said, without exaggeration.
mechanical appliances or tools used in manufacturing.
operating system Noun
collection of software that directs and controls a computer's overall operation. Also called an OS.
safety or stability.
electronic programs of code that tell computers what to do.
collection of items or organisms that are linked and related, functioning as a whole.