Webcams and digital cameras have over the past ten years also significantly expanded the way that a great many people work with and think about computers. Digital photography is now commonplace, with the uploading of images onto a PC for e-mailing, sharing over the web, or printout, now the norm. I remember in the late 1990s the manager of the largest chain of photo processing shops in the UK telling me that digital photography would have no real impact on their business. Oh how wrong he was!
[The above all said, those hoping to speed up thier PC by installing more RAM need to note that any PC with a 32 bit operating system can only access a maximum of 4GB of RAM. Add more, and the PC simply will not recognise it. In practice this means that the vast majority of PCs in use and being sold today cannot benefit from more than 4GB of RAM -- and this includes many PCs running Windows 7 (which is very widely sold in its 32 rather than 64 bit format to maximise compatabilty with older software and perhipherals).]
Case -- If you're using a laptop, the computer case includes keyboard and screen. For desktop PCs, the case is typically some type of box with lights, vents, and places for attaching cables. The size of the case can vary from small tabletop units to tall towers. A larger case doesn't always imply a more powerful computer; it's what's inside that counts. PC builders design or select a case based on the type of motherboard that should fit inside.
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RAM - Random Access Memory, or just "memory". RAM is the working scratchpad memory the computer uses to store code and data that are being actively used. RAM is effectively a storage area of bytes under the control of the CPU. RAM is relatively fast and able to retrieve the value of any particular byte in a few nanoseconds (1 nanosecond is 1 billionth of a second). The other main feature of RAM is that it only keeps its state so long as it is supplied with power -- RAM is not "persistent" storage.
A power supply unit, commonly abbreviated as PSU, does more than just supply your computer with power. It is the point where power enters your system from an external power source and is then allocated by the motherboard to individual component hardware. Not all power supplies are made equally however, and without the right wattage PSU your system will fail to work.
If you're shopping for popular computer components like external hard drives or graphics cards, you're sure to find excellent deals during end-of-year sales, especially Black Friday and Cyber Monday. When you're looking for replacement or individual parts, there isn't a particular time of year when you're bound to find the best prices. While the holidays are as good a time as any, you might also try computer suppliers during other holidays, such as Labor Day or Memorial Day, as these are popular times for all kinds of stores to have sales.

Where higher processor speeds become more important is for applications such as video editing, 3D graphics work and (for the majority of "power users") playing computer games! For any of these applications, within reason the faster the processor the better. This said, people in need a very powerful computer have to be aware that CPU performance is now determined by far more than raw speed alone. Intel made this very clear when it introduced its system of processor numbers. These provide an indication of a processor's "architecture", "cache" and "front side bus (FSB) speed" in addition to its clock speed.

The motherboard in a PC is what creates the connection between all the other components in your computer, similar to how the central nervous system works in conjunction with the organs in the human body. A printed circuit board, the motherboard allows the components in the PC, such as the processor, graphics card and memory card, to communicate with each other. When choosing a motherboard, it is best to know what you want to do with the PC and, more importantly, what you will want to do with it later. For example, if you just want to build an inexpensive PC for work or doing school projects, you can choose a motherboard that has a limited number of USB ports and expansion slots. However, if you think you may want to use it for watching high-definition videos or do some intense gaming with it, you will want a motherboard that can expand, such as adding a secondary graphics card or more memory.

If you are using a desktop you can always add more hard drives or Solid State Drives to your computer, they connected to the motherboard on the inside of the computer. Your operating system, which I will get into more detail later, is installed into your hard drive and is necessary to run a computer. If you’re using a laptop, your hard drive will be installed into the laptop from the start and there will be no way to add any new hard drives as there’s no space inside the laptop. Should want to add more storage to your laptop, you can buy external storage devices that connect via usb or firewire to your laptop and will store your data.
Slots are an opening in a computer where a circuit board can be inserted to add new capabilities. All personal computers contain expansion slots for adding more memory, graphics capabilities, and support for special devices. Expansion slots come in different flavours, which will be described below. An alternative explanation for expansion slots can be found here.
1. Performance times based on internal lab testing conducted in August 2015. Each task was executed and timed after the system had undergone a fresh boot so that other factors and applications didn’t affect the reported load and boot times. Actual performance may vary based on individual system configuration. Test setup: 1TB Crucial MX200 SSD and 1TB HGST Travelstar® Z5K1000 internal hard drive, both tested on an HP® Elitebook 8760W laptop, Intel® Core™ i7-2620M 2.70GHz processor, 4GB Crucial DDR3 1333 MT/s memory, BIOS Rev. F50 (5 August 2014), and Microsoft® Windows® 8.1 Pro 64-bit operating system.

Blu-ray is a newer optical disc storage media format. Its main uses are high-definition video and data storage. The disc has the same dimensions as a CD or DVD. The term “Blu-ray” comes from the blue laser used to read and write to the disc. The Blu-ray discs can store much more data then CDs or DVDs. A dual layer Blu-ray disc can store up to 50GB, almost six times thecapacity of a dual layer DVD (WOW!). Blu-ray discs have similar devices used to read them and write to them as CDs have. A BD-ROM drive can only read a Blu-ray disc and a BD writer can read and write a Blu-ray disc.
Physically USB 1.1, USB 2.0 and USB 3.0 ports appear pretty much identical. However, USB 3.0 connectors have an extra set of pins to accommodate higher speed data transfers. These are positioned in the back of a standard "Type A" plug (and hence in the front of a standard Type A socket). All other USB 3.0 connectors have been re-designed with a larger plugs and sockets to accomodate the extra set of pins. This means that USB 3.0 cables cannot be used with USB 2.0 and USB 1.1 peripherals, although USB 2.0 cables can be used with USB 3.0 devices, if at USB 2.0 speeds. For ease of identification, all USB cables and connectors are colour-coded bright blue. You can learn more about USB 3.0 in the following video:

The same application software must be portable across many different server types, so the customer merely chooses the format of the server based upon the installation. That choice requires rugged servers to be code-compatible within the same processor family using a computer-on-module (COM) engine that houses the processor or processors subsystem, such as an Intel Xeon E5, Xeon D, or future processor types. The engine is the same, whether used in a VPX server blade, a SFF conduction-cooled chassis, an air-cooled 19-inch rackmount, or even sandwiched into a smart-panel PC display.
This is my first amazon review even though I purchase a lot of things on amazon.PC Server & Parts exceeded my expectation.First my MSA arrived ahead of schedule which is always appreciated.The packing of the MSA was professional grade!The MSA looks brand new.They provided all bay trays and every accessory even the small things like including power cords.Bottom line They Rocked the entire process!!

[The above all said, those hoping to speed up thier PC by installing more RAM need to note that any PC with a 32 bit operating system can only access a maximum of 4GB of RAM. Add more, and the PC simply will not recognise it. In practice this means that the vast majority of PCs in use and being sold today cannot benefit from more than 4GB of RAM -- and this includes many PCs running Windows 7 (which is very widely sold in its 32 rather than 64 bit format to maximise compatabilty with older software and perhipherals).]
A motherboard is an electronic circuit board in a computer which interconnects hardware devices attached to it. At a minimum it includes one or more Central processing units, and the main processing activity of the computer takes place on it. However, other connected printed circuit boards may contain their own pre-processing or post-processing CPUs, to take some of the load off of the motherboard; these, together with other plug-in boards without CPUs, may be called "daughter boards." It was called a "mother" board in relation to these. A PC motherboard may have a series of sockets, allowing daughter boards to be plugged in directly. Other connectors on the motherboard allow communication through cables with various peripheral devices, both inside and outside the computer case.
RAM is measured in megabytes (MB) and gigabytes (GB), as detailed on the storage page. Just how much RAM a computer needs depends on the software it is required to run effectively. A computer running Windows XP will usually function quite happily with 1GB of RAM, whereas twice this amount (ie 2GB) is the realistic minimum for computers running Windows 7. Most mobile computers usually feature far less RAM, and indeed even desktop computers running smaller operating systems (such as some versions of Linux or Windows 98) can run very effectively with as little as 128MB of RAM in certain situations.
Hard-drive capacity is also measured in gigabytes (GB), like memory. A typical hard drive might be 500 GB or even 1 terabyte (1,000 GB) or more. Most hard drives sold today are the traditional mechanical type that use metal platters to store data with magnetic polarity, but a newer type, called a solid state hard drive (SSHD), uses a type of memory, resulting in a fast, quiet, and reliable (but expensive) storage alternative.
A supercomputer is superficially similar to a mainframe, but is instead intended for extremely demanding computational tasks. As of June 2018, the fastest supercomputer on the TOP500supercomputer list is the Summit, in the United States, with a LINPACK benchmarkscore of 122.3 PFLOPS, exceeding the previous record holder, Sunway TaihuLight, by around 29 PFLOPS.