Your question must be more detailed. Did you mean hardwares that can't be removed ?
Motherboard and CPU, power supply... but your question should be better explained. They remain installed until they have a breakdown, of course.
optical
Internal Desktop refers to electronic computer parts that are designed to be installed inside a desktop computer. e.g Internal Desktop Hard Drives are hard drives designed to be installed inside a desktop computer.
Secondary Storage Devices (such as Harddisk drives) which are non-volatile in nature stores all data that is put into computer even after the computer is truned off.
There are lots of types of cameras that you can use. They have some that are placed inside stuffed animals and some are placed inside of clocks. You can definitely have it installed permanently if you want. Nanny cameras are growing in popularity as parents feel much more comfortable being able to check in on their nanny and their children. Nanny cams can be easily installed permanently in any room you like. They simply require a power source and a wireless internet signal.
The majority of weights at weigh stations are permanently installed in the pavement. They are below the asphalt, and not portable at all.
a virus can enter your protected computer by being powerful enough to get inside your firewall.
Most are installed inside the computer. Depending on which type of computer you have (Desktop, Tower, Laptop) it may or may not be easily accessible.
No. Memory is a part that must be installed inside your computer.
This depends on the computer and whether the processor is inserted in a socket or permanently installed (soldered in place, for example). Clearly, to move a processor from one computer to another requires that the computers be compatible, in any case.
how do i cacell limewire permanently on my computer?
It is if it is permanently installed, and you are leasing the property.
most computers have an LED light inside just behind the face plate of the computer which is permanently hooked up to the system's power supply because it serves as the visual indicator that the computer has electricity coursing through it.