This Tv comes with speakers attached to it.
Connect the external speaker system to the Audio Output on the rear of the iMac. It is the connection on the far left of the rear of the iMac when you are looking at the rear. The speakers will have to be self powered speakers computer speakers.
The 2nd generation iPod Touch does not come with external speakers. It is possible for it to not have external speakers.
External speakers are speakers that is not basically to the computer, let's say some speakers beside your computer and a bass woofer on the floor.
Speakers can be hooked up in a any order, but must be attached after the reciever is installed.
The iPad has a built in speaker system that is acceptable for personal use. However, if the sound from the speakers is not loud enough for a party, for example, investing in external speakers may be a good idea.
An Internal GPS is usually referred to as a navigation system already installed and internally attached to for example a phone/ car. An external GPS is a navigation system that is added later and is not apart of the original communication system design. It is not attached or installed to the communication system.
This would generally be observed on a laptop/notebook system when you are using the integrated screen and do not have an external monitor attached. If you try to switch from one display to the other, it will tell you it has no external display to switch to.
It is possible to replace your TV speakers. However, you will probably end up with better sound quality if you disconnect the internal speakers and add an external or surround sound system.
You can connect external speakers on a computer on either the headphone socket or sound output sockets on the sound card. You just need the compatible connectors on the audio wires of the music system speakers to connect to these sockets. - Neeraj Sharma
Any mini system can use external surround sound speakers just fine.
If you mean the external speakers they are for playing sounds, i.e. music, sound from video or alerts from the operating system. If you mean the internal speaker it is for alerting the user of more critical problems, i.e. a missing component (processor, graphics card), overheating or some sort of hardware failiure.