4.    I2C—A bus designed by Philips Semiconductors in the 1980s to connect ICs.

7.    PRINTF—C function for printing formatted output.

8.    OCTAL—A numbering system with 8 as its base and the numerals 0 through 7 as its digits.

11.  DHRYSTONE—Developed by Dr. Reinhold P. Weicker in 1984, this synthetic benchmark program is used to measure a system's integer performance.

12.  ENUM—A keyword in programming languages such as C and C++ for declaring new enumerations.

13.  TRACE—Electrical connection on a PCB that carries an electronic signal.

14.   BAGHDAD—Believed to date back to 250 BCE, this battery is the name for several artifacts, each of which is composed of a clay jar, an asphalt stopper, and an iron rod surrounded by a copper cylinder. When filled with an electrolytic solution like vinegar, a jar can produce more than 1.1 V.

15.  RADIX—The base of a system of logarithms or a system of numbers (e.g., 2 in the binary system).

16.  CONDUIT—A tube that protects and directs wires.

17.  MEUCCI—For more than a century, Alexander Graham Bell was credited with inventing the telephone. But on June 11, 2002, the U.S. House of Representatives (House Resolution 269) recognized this Italian engineer (1808–1896) as the phone's inventor.

Down

1.    VOIP—This technology involves the routing of voice data over IP-based networks.

2.    GIBIBIT—1,073,741,824 bits

3.    GALVANI—Italian physician and physicist (1737-1798) who developed his theory of "animal electricity" when experimenting with severed frog legs and two dissimilar metals. His theory was later corrected by Alessandro Volta who put forth a theory of metallic electricity.

5.    SERVOMOTOR—A power-driven mechanism that controls the action of the mechanical device in a servomechanism.

6.    PICOFARAD—One trillionth of a farad.

9.    CHOKE—A coil used to pass direct current and oppose the flow alternating current.

10.  INRUSH—A sudden input current surge.

14.  BIN2HEX—Development tool for converting a binary data containing an executable into a hex format file.