Final answer:
The output of a basic 74-chip being +2.5V means that the chip is providing an electrical output of 2.5 volts.
Step-by-step explanation:
The output of a basic 74-chip being +2.5V means that the chip is providing an electrical output of 2.5 volts. In electronics, chips or integrated circuits are used to perform specific functions, such as amplifying or processing signals. The +2.5V output indicates the voltage level being provided by the chip.