Used computers are affordable solutions to owning a home machine.
Buying a used computer provides users with a more affordable solution for a home computer. Even with the reduction in price for simple computers over the years, they still cost hundreds of dollars for a new system. A used computer saves people money, but it helps to have the knowledge to notice any problems before buying a used machine.
Inspect the Case
Just like buying a car, inspect the outer case for any dents, scratches or abnormalities. The port connections are usually placed in the back of the computer. Ensure that these ports are not dented or misaligned. Port-connection problems may render the computer unusable, since they can restrict connection of important peripheral devices such as a mouse, keyboard or monitor. Ask the original owner to open the case to inspect the inside of the machine as well. Inspect the hardware for any physical damage such as scratches to the circuit board or actual circuits. Physical damage can lead to hardware failure even if the machine currently runs perfectly.
Check Devices
If you don't have personal experience identifying computer components, bringing a professional is important. Since it is a used machine, you need to make sure what is advertised is actually installed into the computer. Check devices and even device version numbers to ensure that the equipment listed in the advertisement is indeed included with the machine. This includes video card, sound card, external peripherals like a mouse, keyboard and monitor and the processor and memory. Processor and memory specifications are also listed in the system BIOS or in the operating-system properties window.
CD-ROM or DVD Drive
Most computers come with an optical drive installed, but older computers may not give you the ability to access your CD-ROMs or DVDs. Many manufacturers require a CD-ROM or DVD player to install their software, so it's important for your used computer to have a CD-ROM or DVD player. An added bonus is a CD or DVD writer, which allows you to burn data and backup copies to a ROM device.
Warranty
Some computer manufacturers do not transfer a warranty to new computer owners who buy a used machine. A warranty provides the user with an upgrade or replacement part should the hardware fail. If the used computer is several years old, there is a greater chance for hardware failure. Be prepared to replace hardware if no warranty is offered with the new purchase.
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