A computer (mainframe, server, or workstation) that has an operating system enabling _____________ to access it at the same time
for files, data and services. Programs and information may be processed at the host, or they may be downloaded to the accessing computer (client) for processing.
The answer is "Multiple computers and Host network".
Explanation:
In the given-question, some data is missing so, the correct answer to this can be defined as follows:
A computer server with the help of an operating system enables to access the data in the multiple computers simultaneously and the Host network allows for access.
The host network is also used to access the network on the computer, which will be a client or a server.
It hosting each network has a unique hostname, which can be accessed from other computers.
In the device, the name of the host is a 'localhost', which is accessible for their data via a network protocol.