The Convention Center is going to be busy, busy, busy this weekend. First we'll peek in on the robot generation. Move over R2-D2, here comes RB5X to automate your life.

* At the Mid-Atlantic Computer Show, you'll be treated to a preview of the future with robot demonstrations, the latest in computer hardware and daily seminars on software for rookies and pros. Words such as Androbot, Robotics and Topo will zip around the center as fast as B.O.B. (Brains on Board) can retrieve drinks. Other topics tackled over the weekend will be computer games for girls, computer networking, microcomputers, computers for the handicapped and an exhibit of telecommunication furniture. The show runs Friday, Saturday and Sunday, 10:30 to 6; admission is $5 for adults, $3 for kids under 12. It's all in the center's upper level, Hall A; call 371-3400 for more details.

* If you're really not moved by computers and would rather spend your time and money elsewhere, the National Arts and Antique Festival can accommodate you at the convention center, too. Quality 18th- and 19th-century furniture, paintings, porcelain and rare Tiffany and Galle glass items are among the collectibles on sale. Hours are noon to 9 on Friday and Saturday and noon to 6 on Sunday. Admission is $3.50 for adults, free for kids under 12 when accompanied by an adult. The show is in the lower level, Hall D; call 301/329-2188.

* Okay, if the computer display and antique show aren't your idea of a good time, you can always check out the National Rare Book Fair adjacent to the antiques fair. Maybe you'll uncover some unusual prints and manuscripts or pick up a few vintage maps. Hours are noon to 7 on Saturday and until 5 on Sunday. The $3 admission is good for entry into the antiques festival, too. Call 301/329-2188. The Convention Center is bounded by New York Avenue, H Street NW and Ninth and 11th streets NW. If you're taking Metrorail, exit the Red Line at the Gallery Place station.