Answer:
i not know mainframe computer there is many use of computer
The advantage does of ExpressCard modules and U.S.B adapters offer over expansion cards is that it can connect a variety of devices to a computer. The technical standard of ExpressCard specifies the design of slots built into the computer and of expansion of cards to insert in the slots including the mobile broadband modems. It is sometimes connectors for externals devices such as flash drives, USB connectors and other ports that need to connect to the computer.
E-mail B is the more appropriate workplace e-mail because it’s straightforward, polite, and professional. E-mail A was more accusatory and aggressive, and many people don’t like when they’re being yelled at or accused of something and, as a result, this person may start to dislike that coworker. However, the second e-mail was more polite and made the receiver think of them as a respectful person so that they’re happy to help them out.
