For more than a year, pandemic-related lockdowns forced a sharp, sudden recalibration of businesses. Everything done in person, almost overnight, had to be done virtually. Companies have explored myriad methods to connect with their customers and employees. Call it the great “digital acceleration.” This boom-trend was exemplified by some of the largest transactions of 2020, when information technology took center stage, from cloud storehouse Snowflake Inc.’s record-setting initial public offering in September to CRM Salesforce.com Inc.’s announcement in December that it intended to acquire workplace messaging software developer Slack Technologies Inc. The tech M&A streak is expected to accelerate in 2021.