DINOSAURS ENTER THE COMPUTER AGE By Dan Gutman Sixty-five million years ago, dinosaurs vanished from the face of the earth. Now they're back, this time in the form of computer software. "Dinosaur Days," "Dinosaurs Are Forever," "Designasaurus," "Digitosaurus." The old "terrible lizards" may not rule the planet any more, but they sure rule the educational software aisles in computer stores. The Children's Television Workshop recently conducted a study asking kids what scientific topics most interested them. Dinosaurs came out on top (right in front of whales). It should come as no surprise that software publishers have begun using the lovable creatures as a theme to get children interested in their programs. "Since time began, every child on the face of the earth has had a fascination with dinosaurs," says Toby Shaw, Vice President of Learning Lab Software. "I do not know of a kindergarten class that has not done dinosaurs. It's something that naturally appeals to children." Learning Lab publishes "Dinosaur Days, " which includes both a simple word processor and a drawing program. Kids can use it to create their own illustrated books, puppets and comics about dinosaurs. They'll also learn about dinosaurs. When you click on the image of a tricerotops, for example, a window pops up on the screen telling you interesting facts about the creature (I didn't know those long horns over the eyes made "effective stabbing tools"!). These can be read off the screen or printed out. For the fun of it, kids can create fanciful images of dinosaurs wearing roller skates, tennis shoes, funny hats and scuba gear. The program can share graphics and files with the other programs of the Pelican Writing Series--"Monsters and Make Believe" and Creation." (Learning Lab, 800-247-4641, Apple, IBM, $40) Then there's Polarware's "Dinosaurs Are Forever," the simplest of the dinosaur programs. It's a sort of computer coloring book with on-disk graphics of 26 different dinosaurs. Kids can take the pictures and print up custom-made banners, calendars and posters. Three-year-olds can have fun with it, and older children can use the program to learn how the 26 dinosaurs evolved, their weight, size and eating habits. Colorful stickers are included in the package. (Polarware, 800-323-0884, for Apple, Commodore and IBM, $30). "Designasaurus" from Britannica Software is sort of a "dinosaur construction set." First you create a dinosaur by selecting a head, neck, body and tail from dozens of choices. Next you give your beast a name and print out its picture, along with palaeontological information and the creature's chances of survival. Finally, you take your dinosaur on a stroll through Jurassic forests and Precambrian swamps. If you make sure it eats the right foods, stays away from predators and doesn't mess up the ecological balance of the planet too badly, you'll win a certificate to the Dinosaur Hall of Fame. The program also comes with 12 canned dinosaurs that can be printed in three sizes (even on a T-shirt!). (Britannica Software, 800-572-2272, Apple, IBM, Commodore, $30-$50) Last but not least is "Digitosaurus," the most conventionally educational product of the lot. This program doesn't teach kids about dinosaurs, it teaches them mathematics. A dinosaur-like creature challenges students to solve whole number problems in addition, subtraction, multiplication and division. With every correct answer, your digitosaurus grows older and wiser. (Sunburst, 800-431-1934, IBM, $65) "If dinosaurs will get kids to write creatively, then we've succeeded. That's the ultimate goal," says Tobi Shaw. "We've got to get these kids motivated. Then we can work on punctuation and other writing skills."