The purpose of the case opening trim in a computer system is to provide easy access to the internal components of the computer for maintenance, upgrades, and repairs.
To store media devices like MP3 players etc.? As a handle to lift the computer? As an air inlet? To store the remote or IR receiver?
The Warranty
A tandem computer system is a system that has built in redudencys so in case of a hardware failure it can still continue to work.
system unit
"System" in this case means that there are various components, which work together.
System unit refers to the housing plus the components inside the box. While a computer case is just a 'case' itself w/o the hardware components attached to it.
Central Processing Unit.
To clean the outside of the case you can use a dry cloth to remove the dust. For more stubborn dirt on the outside of the case you can lightly mist the cloth with water (do NOT get towel wet enough that any moisture drips from it.) To clean the inside of the case you must turn the computer off and unplug the system before opening the case. Once power is disconnected you can open the case and use a can of compressed air (do NOT use a air compressor because air from a compressor will have moisture in it and can damage your system) to blow the dirt and dust off all components.
The PC system case is is the metal shell that surrounds the individual PC components. It is also often called a "computer case", "computer tower", or some people call it the "CPU". However CPU is, by definition, only one component in the case.
ATX Computer Cases
Yes. Make sure you unplug your computer and peripherals before opening the case.
system unit