If you are asking about the inside of your computer, I would suggest grounding yourself by touching any metal surface (outside of your computer) and make sure your computer is completely turned off initially.
Parts of the computer that are safe to touch:
The metal casing
The hard drive (as long as you are gentle with it, and don't shake it.)
The RAM (you want to touch the ram on the very edges, avoid touching the "pads" on the middle of the cards.)
The CD Drive (completely safe to touch)
The Motherboard. (you do not want to mess with the little cylinders on the mobo. They are crucial to your computer running properly.)
Parts of the computer I would not recommend touching unless you absolutely know what you're doing:
The Processor. (this is the brain of your computer, do not touch it unless it is absolutely necessary.)
Make sure you know where all of the chords are coming from, and where they are going before you remove any.
you can touch the keyboards and mouse the power box and the speakers the one thing you should not touch is the screen
That would be hardware. You cannot touch software, since software is virtual and invisible. Software is not diskettes and CDs, but the contents of those items.
Everything except the private parts. <g> Actually, the parts you touch are called computer hardware. You cannot touch software, since it is invisible.
Well, you would need to be more specific. the only thing you shouldn't touch the the bottom of the heatsink on then CPU because that would mess with the thermal paste.
hope it helps.
mouse and keyboard
Peripheral devices
The computer hardware is the part which we can touch.
Anything you can touch.
The hardware.
All of it with the right screwdrivers.
hardware
Hardware.
Actually Every part of the computer is seen and can touch called the Hardware. Software is the Intangible.
A touch pad can be a standalone device, or it can be part of the monitor or keyboard. It is an input device.
The keyboard, monitor, CPU, etc.
Anything you can touch or pick up is hardware. Everything else is software.
Computer hardware is technical equipment, to the computer, which you are able to physically touch e.g monitor, tower, mouse, keyboard etc.
A computer should not be so hot that it hurts to touch it.