Shares of PC chipmakers Intel Corp INTC.O fell 48% and Advanced Micro Devices Inc AMD.O declined 55.5% during the period. Jan 11 (Reuters) - Global personal computer shipments are expected to rise starting late 2023, with a new cycle of system upgrades likely to accelerate growth next year, according to research firms IDC and Canalys. Inflation-hit and recession-wary customers have so far been delaying system upgrades, but these will be pushed into the latter part of the year and trigger PC market growth, the research firms said.