Alone
opening up your system unit
many people use a computer for years without ever needing to open their system unit. But there are two reasons you might want or need to do so to replace a defective expansion card or device or to replace a defective expansion card or device or to upgrade your computer. If your hard drive or cd rom drive fails it's quite simple to open the system unit yourself and replace it. Adding additional memory or adding a dvd rw drive are simple upgrade procedure that you can do safely at home.
opening up your system unit
many people use a computer for years without ever needing to open their system unit. But there are two reasons you might want or need to do so to replace a defective expansion card or device or to replace a defective expansion card or device or to upgrade your computer. If your hard drive or cd rom drive fails it's quite simple to open the system unit yourself and replace it. Adding additional memory or adding a dvd rw drive are simple upgrade procedure that you can do safely at home.
