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Grolier's first CD-ROM publication was the text-only Academic American Encyclopedia on CD-ROM in 1985, and was one of the first commercial CD-ROM titles. The text was based on the Academic American Encyclopedia , which comprised 30,000 entries and 9 million words. [ 29 ]
[2] There were five levels of competition. Fifth- and sixth-grade contests were held in January and March and consisted of 100 questions. Middle school (up to grade 8), junior high (up to grade 9), and high school (up to grade 12) contests were held in December and April and consisted of 200 questions.
Compton's Multimedia Encyclopedia CD-ROM (1989) was the first multimedia encyclopedia. [17] Grolier's earlier CD-ROM encyclopedia was not multimedia. The encyclopedia was founded by Frank E. Compton in 1922. Publishing rights to the F.E. Compton & Company products were acquired by Encyclopædia Britannica, Inc. in 1961. [1]
20th Century Fox presents in New York on an 8 m × 4 m big screen the first widescreen movie. The radio station Witzleben begins in Germany with the regular broadcasting of television test broadcasts, initially on long wave with 30 lines (= 1,200 pixels) at 12.5 image changes per second.
In the history of optical storage media there have been and there are different optical disc formats with different data writing/reading speeds. Original CD-ROM drives could read data at about 150 kB/s, 1× constant angular velocity (CAV), [1] the same speed of compact disc players without buffering.
This value, 150 Kbyte/s, is defined as "1× speed". Therefore, for Mode 1 CD-ROMs, a 1× CD-ROM drive reads 150/2 = 75 consecutive sectors per second. The playing time of a standard CD is 74 minutes, or 4,440 seconds, contained in 333,000 blocks or sectors. Therefore, the net capacity of a Mode-1 CD-ROM is 650 MB (650 × 2 20). For 80 minute ...
The CD-ROM expansion was a major success for the CD-ROM format, selling 60,000 units in its first five months of release in Japan. [14] By 1989, NEC had sold over 1.2 million consoles and more than 80,000 CD-ROM units in Japan.
In 1991, Broderbund made the first of its two great contributions to the history of CD-ROM publishing by releasing, as the inaugural title in its children's software arm, Living Books: One of the first CD-ROMs ever, it was an interactive reading primer called Just Grandma and Me. "Living Books was our bet on CD-ROM as a delivery vehicle," says ...
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