IBM Corp. achieved its first quarter of revenue growth in more than five years thanks mostly to the same technology that helped make Big Blue a technology titan in the past, which doesn’t exactly bode well for its future. IBM sales increased year-over-year for the first time in 23 quarters in a decent earnings report Thursday that was overshadowed by news that it would take a $5.5 billion charge related to the U.S. tax overhaul. The charge pushed IBM’s fourth quarter into a net loss of $1.05 billion, or $1.14 a share. Before the charge, IBM’s adjusted earnings were $5.18 a share, compared with consensus expectations of $5.17, according to FactSet.via