Best rated computers today
In computing, a computers performance is the amount of useful work accomplished by a computer system. Outside of specific contexts, computer performance is estimated in terms of accuracy, efficiency, and speed of executing computer program instructions.
Computers are constantly getting smaller and more powerful. However, when you shop, you probably shouldn’t consider anything lower than 2 GHz. Higher numbers give the best performance. The factor that into your decision, depending on your needs.
In addition, computers have a certain amount of storage capacity for running programs and storing data. You’ll see specifications for RAM and hard-drive data storage capacity when you go laptop shopping. Again, the specific numbers will change, so the rule of thumb is to look for a laptop with higher RAM numbers if you feel you need more storage capacity.
Computers RAM is the memory needed to simply access and run programs. RAM chips come in different types, including DRAM, SDRAM, and the latest version, DDR2. Look for a minimum of 1 gigabyte (GB) of RAM for everyday computing.
RAM chips are rated by access speed, which relates to how quickly a request for data from your system can be completed. You might see RAM speed measured in megahertz (MHz). Today, 800 MHz could be considered an acceptable access speed. Note that there are two common RAM types — SRAM and DRAM, with DRAM being the more efficient.
Your Computers hard drive has a certain capacity for data storage measured in gigabytes (GB). These days, you should probably look for a minimum of a 250GB hard drive, but hard drives can come with a range of huge capacities, with the largest being measured in terabytes (TB, measured in thousands of gigabytes).
Your computer requires some RAM to run the operating system. Windows 8.1 requires 1GB of main memory for a 32-bit system and 2GB for a 64-bit system. It also requires 16GB of hard drive space for a 32-bit system and 20GB for a 64-bit system. Check your computer user guide to find out which system you have.
Your processor has multiple cores. Most processors today are multiple-core processors, such as the i3, i5, and i7 processor lines from Intel. Multiple cores mean that two or more processors are involved in reading and executing software instructions as you use your laptop. Those with two processors are called dual-core, those with four processors are called quad-core, and processors with six cores are referred to as Hexa-core.
The bottom line with cores is that the more you have, the faster your laptop can process instructions because all the cores can be working at once, making multitasking possible. (Multitasking is when you’re running several programs at once, for example, playing music, downloading files from the Internet, running an antivirus scan, and working in a word processor — all at the same time.)
Many people have moved away from desktops in the past decade. However, they still may be useful for many consumers.
Desktops typically offer more performance for the money than laptops and are less expensive to repair. They may allow for a more ergonomically correct work environment, generally come with better speakers, and allow you to view your work on a larger screen
All-in-one desktop computers, also known as “all-in-ones,” incorporate the computer and monitor in one case. The components are tightly packed behind and underneath the display, making them difficult to upgrade or repair. Meant to be space-savers, they’re also designed to look less stodgy than traditional computers. You’ll pay a premium for these models.
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Laptops let you use your computer away from your desk, but you pay for that mobility with a keyboard that’s a little more cramped, a higher price, and (sometimes) reduced performance. A laptop can also be more difficult and expensive to repair than a desktop.
Whether your main consideration is portability or power, screen size will be an essential factor in deciding which type of laptop is right for you.
These days, it’s not unusual for individuals or families to have more than one type of computer. If you’re looking to carry your computer to work or on vacation, you obviously need a laptop. And some have slimmed down to weigh as little as a couple of pounds.
If mobility isn’t a concern, get a desktop, because it’s very likely that you’ll get more performance for the same money—plus more flexibility in customizing the machine once you buy it. (That’s one reason lots of serious gamers have desktops.)
Those are two major categories of computer, but there are several variations to consider—and we haven’t even mentioned the choice of operating system yet.
Choices among computers are becoming more confusing as the boundaries between categories blur. For instance, some new desktops are almost as small and inconspicuous as a laptop. Conversely, you can easily find a laptop that’s just as powerful as a typical desktop. And then there are some slightly unconventional categories, such as laptops that can be used liked tablets and all-in-one desktops that don’t need a separate monitor.