If the desk allows for such an attachment, there is no reason you couldn't. The wood must be strong enough though, or you risk damaging the desk under the weight. In such cases, consider purchasing a hutch instead.
The desk may not be sturdy enough to support a monitor mount.
You can buy a desk that allows for an attachment for a monitor mount. Usually the mount attachments are sold separately.
To mount a monitor to the back of a desk (wall) you'll need a VESA mount, which is a standard mount for monitors and will cost anywhere from $50 to $150.
A computer monitor wall mount clears up space on the desk. Your computer monitor hangs on the wall, which adds a little more space on your desk, which can be more convenient for people with small computer desks.
Wooden desks with heavy scratch coating will work fine, but will still be scratched if you move a plastic monitor or the like.
you can obviously ex: This desk is wooden.
The monitor.
Tower style computers have a monitor that is separate to the monitor. The tower would sit under a desk, by a desk or on top of the desk with the monitor attached by a cable but still being a separate entity to the hard drive.
No, wood is not magnetic, so a wooden desk itself would not attract magnets. However, if there are metal components (like screws or brackets) attached to the wooden desk, those parts may be magnetic.
The most likely reason to wall mount a computer, or at least it's monitor, is for space saving purposes. Using the wall will free up a desk or other surface for other items and if the room is so small as to need a pull out desk, this type of arrangement will help.
A normal child's wooden bed can be turned into a normal bunk bed with a desk underneath by disassembling the wooden bed and then modeling it into a bunk bed with a desk underneath.
A monitor stand holds the computer monitor helping to alleviate any neck strain. The monitor types are desk top and wall mount versions. Dell monitors may be purchased at Office Depot, Amazon, Dell and eBay.