GenChem I model, incidentally, uses the broad screen with adjustable flash-time, and a hold button, instead of the reel-type screen, across which letters flow from right to left.
These handhelds have made a considerable dent in textbook sales, though as hard-core book-lovers like to point out, very few textbooks have ever been known to fade away at two a. m. the night before the exam, just when someone has unauthorizedly borrowed your recharger.
But, as the handheld enthusiasts ask, how many books can be programmed to give a vocabulary and grammar review in a foreign language, with practically unlimited numbers of questions in randomly varied order, and in whatever form you care to try? There's even one that will speak the words aloud—while research continues on another to independently check the user's pronunciation.
4) Novelty handhelds—These are the recreation and entertainment models, such as chess and checker players, go, bridge, pinochle, and "pocket casino" models. There are "scenic view" and "guided tour" models. And the "Favorite TV" and "Favorite Movie" series. And, of course, the notorious "Pocket Burlesque Theater."
The latest versions of all these use the N-V viewer, unlike the bulky early models with large built-in screens. In the N-V system (the letters stand for "Natural-View"), a separate image is flashed into each eye, each view being separately adjusted to fit the user's vision.
The Scenic View II uses highly sensitive color apparatus, and an enormous repertoire of scenes—making, in effect, a modern compact replacement for the stereoscope.
The Guided Tour models put related scenes together, along with an earphone for the voice that gives the description. An interesting feature is the "branching" of the tours. Suppose a tour of Paris incidentally shows a famous restaurant. Press the appropriate button, and a new guide appears to express appreciation for your interest, and show you through the restaurant in detail. When now and then he asks, "Do you see?" it isn't a rhetorical question, but the sign of another "branch-point", where if you want you can get still more details.
Similar to this in principle, is the new "careers" model, meant to show what a person in any given line of work actually does . The first versions, to judge by the groans of the people really doing the kinds of work shown, fall considerably short of realism.
5) The so-called "trade" handheld—such as the Plumber's Helper, the Auto Mechanic, the Carpenter, the Contractor, and so on. These vary widely.
There is, for instance, a shiny model we can call the WidgetMasTer. Suppose you want to learn from this model how to bend a widget, and so tap out B-E-N-D. If you hit two of the jampacked keys at once, a red light flashes and an alarm goes off. This is, as the instructions explain, "for your protection."
After you tap out B-E-N-D, across the screen glides: "REFER TO ITEM REQUIRED."
Anyone used to book indexes will suppose this means to name the noun first—that is, "Widget, bend." But, if you tap out W-I-D-G-E-T, the screen replies, "STATE REFERENCE DESIRED."
Apparently, this must be the place to hit B-E-N-D. But then WidgetMasTer unreels: "REFER TO ITEM REQUIRED."
If you move fast enough, you can hit W-I-D-G-E-T-B- but then the red light flashes and the alarm hammers. There is no such thing as a "widgetb," and WidgetMasTer knows it.
The only way out of this impasse is to throw WidgetMasTer in the trash can (the preferred solution), or else fight your way through the instruction pamphlet. Eventually you will locate reference to a "GN" key (for "Generic Name") and an "Op" key (for Operation") and an "Sp" key (for "Species") and a "Q" key (for "Query"). It develops that all you have to do is to just press the Q key, and release it, then press the GN key and tap out W-I-D-G-E-T, then press the Sp key and tap our A-L-L, then press the Op key and tap out B-E-N-D, and then press the Q key again, and then, after a brief little
These handhelds have made a considerable dent in textbook sales, though as hard-core book-lovers like to point out, very few textbooks have ever been known to fade away at two a. m. the night before the exam, just when someone has unauthorizedly borrowed your recharger.
But, as the handheld enthusiasts ask, how many books can be programmed to give a vocabulary and grammar review in a foreign language, with practically unlimited numbers of questions in randomly varied order, and in whatever form you care to try? There's even one that will speak the words aloud—while research continues on another to independently check the user's pronunciation.
4) Novelty handhelds—These are the recreation and entertainment models, such as chess and checker players, go, bridge, pinochle, and "pocket casino" models. There are "scenic view" and "guided tour" models. And the "Favorite TV" and "Favorite Movie" series. And, of course, the notorious "Pocket Burlesque Theater."
The latest versions of all these use the N-V viewer, unlike the bulky early models with large built-in screens. In the N-V system (the letters stand for "Natural-View"), a separate image is flashed into each eye, each view being separately adjusted to fit the user's vision.
The Scenic View II uses highly sensitive color apparatus, and an enormous repertoire of scenes—making, in effect, a modern compact replacement for the stereoscope.
The Guided Tour models put related scenes together, along with an earphone for the voice that gives the description. An interesting feature is the "branching" of the tours. Suppose a tour of Paris incidentally shows a famous restaurant. Press the appropriate button, and a new guide appears to express appreciation for your interest, and show you through the restaurant in detail. When now and then he asks, "Do you see?" it isn't a rhetorical question, but the sign of another "branch-point", where if you want you can get still more details.
Similar to this in principle, is the new "careers" model, meant to show what a person in any given line of work actually does . The first versions, to judge by the groans of the people really doing the kinds of work shown, fall considerably short of realism.
5) The so-called "trade" handheld—such as the Plumber's Helper, the Auto Mechanic, the Carpenter, the Contractor, and so on. These vary widely.
There is, for instance, a shiny model we can call the WidgetMasTer. Suppose you want to learn from this model how to bend a widget, and so tap out B-E-N-D. If you hit two of the jampacked keys at once, a red light flashes and an alarm goes off. This is, as the instructions explain, "for your protection."
After you tap out B-E-N-D, across the screen glides: "REFER TO ITEM REQUIRED."
Anyone used to book indexes will suppose this means to name the noun first—that is, "Widget, bend." But, if you tap out W-I-D-G-E-T, the screen replies, "STATE REFERENCE DESIRED."
Apparently, this must be the place to hit B-E-N-D. But then WidgetMasTer unreels: "REFER TO ITEM REQUIRED."
If you move fast enough, you can hit W-I-D-G-E-T-B- but then the red light flashes and the alarm hammers. There is no such thing as a "widgetb," and WidgetMasTer knows it.
The only way out of this impasse is to throw WidgetMasTer in the trash can (the preferred solution), or else fight your way through the instruction pamphlet. Eventually you will locate reference to a "GN" key (for "Generic Name") and an "Op" key (for Operation") and an "Sp" key (for "Species") and a "Q" key (for "Query"). It develops that all you have to do is to just press the Q key, and release it, then press the GN key and tap out W-I-D-G-E-T, then press the Sp key and tap our A-L-L, then press the Op key and tap out B-E-N-D, and then press the Q key again, and then, after a brief little
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