  upgrading is the process of replacing a product with a newer version of the same product. in computing and consumer electronics an upgrade is generally a replacement of hardware, software or firmware with a newer or better version, in order to bring the system up to date or to improve its characteristics. ==computing and consumer electronics== examples of common hardware upgrades include installing additional memory (ram), adding larger hard disks, replacing microprocessor cards or graphics cards, and installing new versions of software. many other upgrades are often possible as well. common software upgrades include changing the version of an operating system, of an office suite, of an anti-virus program, or of various other tools. common firmware upgrades include the updating of the ipod control menus, the xbox 360 dashboard, or the non-volatile flash memory that contains the embedded operating system for a consumer electronics device. users can often download software and firmware upgrades from the internet. often the download is a patchâit does not contain the new version of the software in its entirety, just the changes that need to be made. software patches usually aim to improve functionality or solve problems with security. rushed patches can cause more harm than good and are therefore sometimes regarded with scepticism for a short time after release (see "risks"). patches are generally free. a software or firmware upgrade can be major or minor and the release version code-number increases accordingly. a major upgrade will change the version number, whereas a minor update will often append a ".01", ".02", ".03", etc. for example, "version 10.03" might designate the third minor upgrade of version 10. in commercial software, the minor upgrades (or updates) are generally free, but the major versions must be purchased. see also: sidegrade. ==risks== although developers usually produce upgrades in order to improve a product, there are risks involvedâincluding the possibility that the upgrade will worsen the product. upgrades of hardware involve a risk that new hardware will not be compatible with other pieces of hardware in a system. for example, an upgrade of ram may not be compatible with existing ram in a computer. other hardware components may not be compatible after either an upgrade or 
Computing_terminology