Japan's Nikkei gains as Meta's AI gadget launch lifts CPU-related stocks

By Junko FujitaJapan's Nikkei average rose on Thursday in a holiday-shortened week as CPU-related shares jumped after Meta CEO Mark Zuckerberg unveiled a small handheld gadget called Meta Charm, fuelling demand for key computer components.The Nikkei TVC:NI225 was up 1.33% at 65,883.41 by the midday…