This paper deals with computer services that Public Libraries of Northwestern Croatia offer to their users as one of their core services. The aim of the research was to determine how and to what extent Croatian public libraries provide free and unimpeded access to new information technologies to all members of their community and to identify the development trends of this service over the time period from 2012 to 2018. In the theoretical part of the study, scientific knowledge on basic services of public libraries is considered, with particular reference to the role of the library in overcoming the "digital divide" and social exclusion of individual members of the community. The available standards, strategies and guidelines for the development of public libraries are examined, and modern computer and internet access in the library is presented. In the research part of this paper, we present and analyse the results of the survey carried out in 33 public libraries in the six counties of Northwestern region of Croatia during May and June 2018, which were then compared with the results of research carried out in the public libraries of Eastern region of Croatia during 2012. The results of the study confirmed the basic hypotheses that public libraries are fully aware of their role and responsibilities in ensuring free access to modern information technology to all members of their local community, that additional efforts are made in the development of computer and information literacy skills, as well as significant improvement in the development of computer services of public libraries in the observed period. In the conclusion of the thesis, public libraries are given some suggestions for improving the use of computer / internet services for their users.