Typewriters are one of the longest lasting technologies in modern time. The basic front stroke typebar typewriter with the QWERTY keyboard was in place by the 1890s. A typebar is the slender bar with the letter on the end. Front stroke meant you could see what was being typed as you typed. QWERTY are the first 6 leters on a standard keyboard. The key pattern was designed for relative speed, but also to prevent keys from jamming. Bars with frequently used letter pairs are widely separated to prevent jams. This design continued by all major manufacturers until 1961 when the IBM Selectric introduced a typewriter with a rotating typing element that looked like a golf ball with all of the letters and symbols on it. It was somewhat similar to designs in the 1800s which had a single typing element. Some other manufacturers began to use similar elements. Finally, typewriters began to use daisy wheel elements which were a flat wheel with the letters radiating out from the center like the petals on a flower. Typebar typewriters were still made up until at least the 1980s for electric typewriters, however, and are still made today for manual typewriters. A manual typewriter made today works in basically the same way as a manual typewriter did over 100 years ago! People also still use typewriters today especially to fill in pre-printed forms or to type a quick envelope or label. Finally, the QWERTY keyboard is used even on computers today – not because it is the most efficient pattern, but because it is the pattern everyone knows. Indeed, a secretary from 1900 magically appearing today could easily type on a computer today.