On Monday, Freetown residents will vote on a $903,000 debt exclusion to pay for replacing the outdated computer network used by the Freetown-Lakeville Regional School District. On Sept. 15, Lakeville voters approved the tax hike to update the district’s technology infrastructure, a project spearheaded by former Superintendent of Schools John McCarthy, now the superintendent in Scituate. The technology upgrades, according to school officials, will include a server, network management systems, and wireless access for students, allowing Freetown-Lakeville schools to operate on par with those in other communities.