plugged into motherboard
Riser
Yes motherboard is a hardware. And all other components that are attached on motherboard are hardware.
No, the sound card is attached to the motherboard of the computer.
a daughter board is a smaller board usually attached to the main or motherboard
In a typical personal computer, the CPU is attached to the motherboard.
Most videocards are integrated (permanently attached) to the motherboard. So, no.
The Motherboard functions as the main circuit board that connects and communicates to all the devices and components attached in the computer. The motherboard facilitates the communication of devices with each other.
Motherboard consist of slots where Processor & Memory can be attached. There are IDE or SATA ports on Motherboard to connect Harddisks. Motherboard is housed in Computer Cabinet which is called as CPU.
No, the motherboard contains the majority of the electronic components. But, there is the removable media drives, the power supply, RAM sticks and depending on the options on your computer you'll have more. However, everything is attached to the motherboard in some way.
No the hard drive is attached to the motherboard via a IDE/SATA cable
DIMM stands for Dual In-line Memory Module. Have a look at the Wikipedia entry in the attached link. There is a picture on the rightihand side of the article of the DIMM slots on ta motherboard.