CREATE TABLE "s_specs" (
  "processor_speed_m_hz" real,
  "input_clock_m_hz" text,
  "voltage_center_v" text,
  "voltage_range_v" text,
  "part_number" text,
  "clock_multiplier" text,
  "s_spec_number" text
);

Question: Which Voltage Center (V) has an S-Spec Number of sk096?
SQL: SELECT "voltage_center_v" FROM "s_specs" WHERE "s_spec_number"='sk096';

Question: Which Voltage Center (V) has an Input Clock (MHz) of 25 x 3, and a Part Number of a80486dx4-75?
SQL: SELECT "voltage_center_v" FROM "s_specs" WHERE "input_clock_m_hz"='25 x 3' AND "part_number"='a80486dx4-75';