yes, they do as for magnets are used for the speakers from the computers hard drive and to use any network. this is because the major Internet service uses
magnets to send information's to other PCs and each one has its own type of special magnet.
There re only magnets in hard drives but they're sealed and will not affect the computer in any way
Some common items that contain magnets include refrigerator doors, speakers, headphones, electric motors, and MRI machines. Magnets are also found in computer hard drives, credit cards, and magnetic toys.
Yes, They are used to move the hard drives. The hard drives spin very fast, and they use magnets to achieve that speed. just don't hold a magnet 2 th computr or u will end up with a messed up / not working computr : /
No. The only parts that deal with magnetism are some kinds of storage, such as floppy disks, traditional hard drives, and tape libraries. However, some desktops and laptops are now shipping with SSD storage and are completely unaffected by most magnetism. Extremely strong magnetic fields are capable of interfering with any electrical system, however.
Refrigerator doors use permanent magnets to keep them closed and magnets are commonly used in speakers to convert electrical energy into sound by causing the driver (cone) to vibrate.
you cant buy, you can find them in old hard drives.
One application of magnets is in electric motors. These are used everywhere. Most computer hard drives used magnets, which uses similar magnetic technology as cassette tapes. Giant magnets are used for medical imaging in Magnetic Resonance Imaging (MRI) machines. These are only a few.
Hard drives, speakers, electric motors, many things.
In the computer's HARD
Magnets are not essential as part of the computing function itself, but many machines contain CD or similar drives, which are actuated by small motors. Which are magnetic in operation. And similarly for Hard drives, which use magnetic disks to store information. BUT -- But the imminent arrival of solid state drives, (Flash Memory of various sorts) may mean that there are no magnets in the computer. Excepting the loudspeaker which is likely to remain the magnetic type in the near future. [And excepting the transformers in the power supply.] P.S. Computer cooling fans also have magnets to be able to turn.
The most common problem with large hard drives is computer crashes.
Assuming that when you say system unit of a computer you mean the computer case A.K.A. the tower, then no, hard drives are not always installed internally. Hard drives can be in external enclosures, hard drive docks, and even network attached devices.