Neither. A computer case is just a box to hold the parts of a computer. It provides no form of communication itself.
serial devices
serially.
Depends, is the device serial or parallel?
serial device
Serial
Serial ports only allow one device to send and one device to receive at a time, where a parallel port can send and receive data at the same time.
A "serial to parallel" converter converts a serial data connection to a parallel data connection. For example, in computer storage, there are controller chipsets that convert SATA (Serial ATA) to PATA (Parallel ATA, also called IDE or EIDE).
A universal asynchronous receiver/transmitter, abbreviated UART ( /ˈjuːɑrt/), is a type of "asynchronous receiver/transmitter", a piece of computer hardware that translates data between parallel and serial forms
It is not necessary to power down the computer to hook up a serial device. It is also not necessary to power down a serial device before hooking it up to a computer.
One of the major advantages of USB over Serial/Parallel ports is the increase of speed between the device and your computer. Also, USB devices can be chained together so one USB port can be used by many devices. Lastly, USB is considered "hot swappable" - therefore your computer can easily disconnect one device and discover a new one that you have plugged in.
A universal asynchronous receiver/transmitter, abbreviated UART ( /ˈjuːɑrt/), is a type of "asynchronous receiver/transmitter", a piece of computer hardware that translates data between parallel and serial forms
There are several meanings of parallel device. It can mean having two or more computers working on the same problem at the same time. This is called parallel computing. Or it can mean any device hooked up to the parallel port on a computer. Parallel ports are fairly obsolete, so you are less likely to see this version of parallel device in the future.
New mice are neither serial or parallel, they are PS/2...So, if you look at the back of the computer it has a different socket than serial or parallel.Only older mice was serial or parallel.P.S. Sorry for my bad English, I don't know if socket is the correct word, but...
A printer