Programmable calculator to use magnetic strips were the HP-41C and TI-59. Continuous memory does not lose its content when the calculator is switched off. With continuous memory the user can, for example, change batteries without losing the entered programs. Compact Cassettes offered a simple, inexpensive alternative to magnetic cards. Usually, an interface module, such as the Casio FA-1, was used to connect the calculator to an ordinary cassette recorder and digital data were encoded as frequency-shift keyed audio signals. Sharp and Hewlett-Packard also sold dedicated micro- or mini-cassette recorders that connected directly to the calculator. These set-ups, while being more practical and
Young Electric Sign Company and lighting service franchises in states east of Colorado and throughout Canada. In 2015 Young Electric Sign Company sold YESCO Electronics, a subsidiary company, to Samsung Electronics of America, Inc. NBC ushered in the millennium with a new YESCO “message globe” in its NBC Experience store, located at Rockefeller Center in New York City. The electronic sign quickly became recognized as one of the most distinctive electronic displays in the world. From the outside of the building, it looks like a brilliant illuminated globe. The 35’-diameter hemisphere is covered with thousands of full-color LEDs. Colorful video and special effects, along