Computer-related introductions in 1971

thumb|right|This screenshot shows the "Inbox" page of an email client; users can see new emails and take actions, such as reading, deleting, saving, or responding to these messages. thumb|When a "robot" on Wikipedia makes changes to image files, the uploader receives an email about the changes made. Electronic mail (usually shortened to email; alternatively hyphenated e-mail) is a method of transmitting and receiving digital messages using electronic devices over a computer network. It was conceived in the late–20th century as the digital version of, or counterpart to, mail (hence e- + mail).

removable disk storage medium

standard protocol for transferring files over TCP/IP networks

4-bit central processing unit; one of the earliest processors made by Intel, made on November 15, 1971

In computer science, a B-tree is a self-balancing tree data structure that maintains sorted data and allows searches, sequential access, insertions, and deletions in logarithmic time. The B-tree generalizes the binary search tree, allowing nodes to have more than two children.

ALOHAnet, also known as the ALOHA System, or simply ALOHA, was a pioneering computer networking system developed at the University of Hawaiʻi. ALOHAnet became operational in June 1971, providing the first public demonstration of a wireless packet data network.

family of block-oriented computer terminals introduced by IBM in 1971

thumb|upright=1.2|A program running in a Kenbak-1 IDE/emulator. Click to start animation. Note that the program's sole use is to show lights being shifted. thumb|Kenbakuino, an Arduino-based Kenbak-1 emulator

line of Texas Instruments portable computer terminals (1970s and 1980s)