Corning. The world's largest professional association for the advancement of technology. Find Values (Conversions) Audio Division (FCC) USA. Power microwave pulsed generator. MyInfopie - Tech and Game updates. Oxygen microwave effects. Search Results. Programmable logic device. A simplified PAL device. The programmable elements (shown as a fuse) connect both the true and complemented inputs to the AND gates. These AND gates, also known as product terms, are ORed together to form a sum-of-products logic array. A programmable logic device (PLD) is an electronic component used to build reconfigurable digital circuits. Unlike a logic gate, which has a fixed function, a PLD has an undefined function at the time of manufacture. Before the PLD can be used in a circuit it must be programmed, that is, reconfigured. Using a ROM as a PLD[edit] Before PLDs were invented, read-only memory (ROM) chips were used to create arbitrary combinational logic functions of a number of inputs.
Now imagine that the inputs are driven not by an m-bit address, but by m independent logic signals. Now, consider that each of the n output pins acts, independently, as a logic device that is specially selected to sample just one of the possible 22m such functions. Early programmable logic[edit] Microchip implant (human) The hand of microchip implant hobbyist Amal Graafstra, just after an operation to insert an RFID tag.
The yellow coloration comes from iodine used to disinfect the hand for surgery. A human microchip implant is an identifying integrated circuit device or RFID transponder encased in silicate glass and implanted in the body of a human being. A subdermal implant typically contains a unique ID number that can be linked to information contained in an external database, such as personal identification, medical history, medications, allergies, and contact information. Since that time, several additional hobbyists have placed RFID microchip implants into their hands or had them placed there by others. Amal Graafstra, author of the book "RFID Toys," asked doctors to place implants in his hands.
A cosmetic surgeon used a scalpel to place a microchip in his left hand, and his family doctor injected a chip into his right hand using a veterinary Avid injector kit.