What is a general purpose computer?
When people think of a computer system, the image that usually comes to mind is a typical desktop with a separate monitor.
The best all-in-one PC packs the screen, processor, motherboard, and other computer system components into one compact space. The computer keyboard and mouse are still separate items.
This distinguishes them from computers, which combine a mouse and keyboard and are presented directly in one device. Computers are portable, while compact all-in-ones require permanent desktop space.
Factors to consider before choosing a PC
Your needs and budget plan
Its use case details define the relevant computer specifications. For example, the required speed of your PC depends on what you are going to do with it. A fast processor, enough RAM, and an efficient graphics card are vital for a gaming PC. A desktop computer with a lower budget plan should be enough if you plan to use the computer for browsing the Internet, as well as for simple productivity-related tasks such as data processing.
While there are many different desktop processors or CPUs, most of them come from just two vendors: AMD and Intel. Intel processors usually provide higher efficiency, but they are more expensive than AMD processors. However, the main difference between CPUs has to do with the variety of cores they use, as well as the speed of their family members.
Memory, or RAM, plays an important role in the speed and performance of a PC. The more RAM, the higher the efficiency. Experts advise at least 8 gigabytes of memory, but 16 GB gives much more efficiency. For gaming and other heavy computing applications, 16GB is the minimum you should consider.
While some computers still have hard drives, many newer PCs come with solid state drives for saving and caching information. Solid state drives are more efficient because they are faster, more efficient, and also much more durable than hard drives.
Many desktop computers are still equipped with DVD burners, but some smaller, variable speed PCs are ditching optical drives. Your desktop needs a Blu-ray drive to watch new HD movies. If the computer system you want doesn’t have optical drives, buy an external CD, DVD, and Blu-ray player.
Video card and video cards
If you don’t play PC games with 3D graphics, you don’t need to bother with a dedicated graphics card. Gamers should consider a DirectX 11 card with at least 2GB of internal memory. Choose an inexpensive graphics card if you’re interested in faster performance without 3D. Variables to consider include performance, amount of memory on the card, output adapters, and version of Straight X supported.
External Peripheral Connectors
Examine the number and type of external ports available on the computer system for use with future peripherals. A number of high-speed peripheral adapters are currently offered. It is best to purchase a computer with at least 6 USB ports. Other high-speed adapters include eSATA as well as Thunderbolt, which can be especially useful for external storage. Many desktop computers also have SD card readers.
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