The intel 8051 series 8bit microcontroller, originally introduced in 1980, remains popular and has had perhaps the longest product life of all such devices. It has become the industry standard for ...

The first optical mice had to be used on a specially printed mousepad with a printed grid that the four-quadrant infrared sensor could detect. Later, mice swapped the infrared sensor for an ...

The 8051 is an accumulator-based design with 255 instructions. A basic instruction cycle takes 12 clocks; however, Dallas Semiconductor redesigned the instruction-execution circuitry to reduce the ...