Introduction to Computers

____is information that a user physically enters into a computer by pressing a key on a keyboard, clicking a mouse, tapping a touch screen, pushing a button on a game controller, speaking into a microphone, etc.

• input

• output

• storage

• processing

____is the operations performed by a computer to retrieve, transform, or classify information.

• input

• output

• storage

• processing

____is information that a computer returns to a user such as images on a screen, sounds from speakers, and printed pages.

• input

• output

• storage

• processing

____is the saving of information on memory chips, discs, or other storage media by a computer for later use.

• input

• output

• storage

• processing

An early computing machine that used punched cards and metal pins. It was used to compile the 1890 US census.

• Hollerith's Tabulating Machine

• Supercomputers

• 1944 - Harvard Mark 1 Completed

• Naval Ordnance Research Calculator

A smaller, faster, cheaper, and more durable electronic device that replaced mechanical relays, which were slow and tended to wear down over time.

• Transistor

• Microchip

• Smartphone

• Supercomputers

An electronic device that allowed entire computers to be built into a single board, replacing modules for each part of the computer. Microchips paved the way for personal computer ownership.

• Transistor

• Microchip

• Smartphone

• Supercomputers

A system for making digital resources publicly available over the internet using a web browser that paved the way for email, chatrooms, and social media sites.

• World Wide Web

• Microchip

• Smartphone

• Supercomputers

A mobile phone that functions as a computer and allows users to access the internet.

• World Wide Web

• Microchip

• Smartphone

• Supercomputers

The fastest, most powerful computers that exist at a given time. These computers have processing capabilities designed to solve problems that are too complex for regular computers. They play vital roles in the advancement of national defense, science, and social change.

• World Wide Web

• Microchip

• Smartphone

• Supercomputers