(MONEY Magazine) – You can put some of this year's newest PCs in your pocket -- or even your wallet. Manufacturers have added extra functions and advanced memory to the same microchip technology that brought us palm-size calculators, thereby creating some handy, though high-priced, gadgets powered by compressed versions of desk-top computer programs. The credit-card-size Platinum Business Card by Tele-Art, retailing for $44.95, has an 8,000-character data base that can store your grocery lists and the entire contents of little black books; it can also figure currency conversions. Hint: the eraser tip of a pencil works better than your fingers on the pinhead-size keys. The storage function is not foolproof, so back up irreplaceable unlisted phone numbers with pencil and paper. To add style, or at least syllables, to your life, Microlytics has crammed its WordFinder spell-checker and 220,000-synonym thesaurus software into a case that folds to 4 3/8 inches by three inches by one inch, costs $99.95 and also unscrambles your daily newspaper's Jumble puzzle. Prominently displayed on the box is noted Big Word Hunter William F. Buckley Jr.'s oddly inelegant blurb: ''It's a bloody miracle.'' For $129.95, Franklin Computers offers more than twice the synonyms and a word game of its own on the Pocket Wordmaster, five inches by 2 7/8 inches by 5/8 inch. The Psion Organizer II is a 5 3/5-inch-by-three-inch-by-1 1/10-inch appointment calendar/memo holder/alarm clock/calculator at $179.99 for an 8,000-character memory or $249.99 for a 32,000-character model. That might seem a mite frivolous unless you also invest in one of the thumb-size program disks available at $59 to $129 for such useful functions as financial planning, spelling and interfacing its data with the PC on your desk. Sharp's Wizard, six inches by four inches by one inch when closed, is the most expensive micro-gizmo of all at $299 for a basic unit that tells you the time around the world and has calendar and calculator modes. Wait till next year to buy the Wizard. Right now it has time management, translation and thesaurus programs for about $l00 each. But Sharp has more vital functions in the works, such as a Lilliputian program that faxes.