What allows a computer to run two or more operations simultaneously?

In computing, multitasking is the concurrent execution of multiple tasks (also known as processes) over a certain period of time. Even on multiprocessor computers, multitasking allows many more tasks to be run than there are CPUs. Multitasking is a common feature of computer operating systems.

What is the method of multitasking that requires the operating system to give control to a running process and wait for that process to finish?

In cooperative multitasking, the operating system hands over control to a program and waits for the program to give control back to the operating system.

Which common e mail protocol allows the user to access messages yet still have them stored on the server?

Internet Message Access Protocol
Internet Message Access Protocol, or IMAP, is a standard email retrieval (incoming) protocol. It stores email messages on a mail server and enables the recipient to view and manipulate them as though they were stored locally on their device(s).

What directory service protocol is used by Active Directory and also supported by Linux?

AD does support LDAP, which means it can still be part of your overall access management scheme. Active Directory is just one example of a directory service that supports LDAP.

Where does the CPU store its computations?

Where does the CPU store its computations? Registers; When the CPU does computation, it stores information in registers first.

What systems use a central processing unit CPU and memory?

central processing unit (CPU), principal part of any digital computer system, generally composed of the main memory, control unit, and arithmetic-logic unit. In modern computers, the CPU is contained on an integrated circuit chip called a microprocessor.

How multitasking performed by the operating system of a computer?

Multitasking, in an operating system, is allowing a user to perform more than one computer task (such as the operation of an application program) at a time. The operating system is able to keep track of where you are in these tasks and go from one to the other without losing information.

What type of delivery method uses an email server between the sender and the receiver of messages?

The Simple Mail Transfer Protocol (SMTP) is used to deliver e-mail messages over the Internet. This protocol is used by most e-mail clients to deliver messages to the server, and is also used by servers to forward messages to their final destination.

Which protocol is used to retrieve email messages from the server to your computer?

Internet Message Access Protocol (IMAP)
In computing, the Internet Message Access Protocol (IMAP) is an Internet standard protocol used by email clients to retrieve email messages from a mail server over a TCP/IP connection.

What is directory services computer network?

Directory services are network services that identify every resource such as email address, peripheral devices and computers on the network, and make these resources accessible to users and applications.