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What does this mean ?

Central Processing Unit (CPU), or sometimes simply processor, is the component in a digital computer capable of executing a program.(Knott 1974) It interprets computer program instructions and processes data. CPUs provide the fundamental digital computer trait of programmability, and are one of the necessary components found in computers of any era, along with primary storage and input/output facilities. A CPU that is manufactured as a single integrated circuit is usually known as a microprocessor. Beginning in the mid-1970s, microprocessors of ever-increasing complexity and power gradually supplanted other designs, and today the term "CPU" is usually applied to some type of microprocessor.

The phrase "central processing unit" is a description of a certain class of logic machines that can execute computer programs. This broad definition can easily be applied to many early computers that existed long before the term "CPU" ever came into widespread usage. However, the term itself and its initialism have been in use in the computer industry at least since the early 1960s (Weik 1961). The form, design and implementation of CPUs have changed dramatically since the earliest examples, but their fundamental operation has remained much the same.

Early CPUs were custom-designed as a part of a larger, usually one-of-a-kind, computer. However, this costly method of designing custom CPUs for a particular application has largely given way to the development of mass-produced processors that are suited for one or many purposes. This standardization trend generally began in the era of discrete transistor mainframes and minicomputers and has rapidly accelerated with the popularization of the integrated circuit (IC). The IC has allowed increasingly complex CPUs to be designed and manufactured in very small spaces (on the order of millimeters). Both the miniaturization and standardization of CPUs have increased the presence of these digital devices in modern life far beyond the limited application of dedicated computing machines. Modern microprocessors appear in everything from automobiles to cell phones to children's toys.

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Compare CPUs prices from a wide range of UK shops on Mister-Price UK. Browse through the CPUs offers below, showing the best processors from Intel, AMD, Evergreen Technologies and more.

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AMD Athlon Ii X2 Dual Core (250) 3.0ghz Processor

AMD Athlon Ii X2 Dual Core (250) 3.0ghz Processor

eBay.co.uk
£65.37

Xeon D 5030 2.67Ghz Fsb667

Xeon D 5030 2.67Ghz Fsb667

XEON D 5030 2.67GHZ FSB667 ACTIVE/1U 2X2MB CACHE BOXED

Amazon Marketplace
£80.00

Intel Processor upgrade - 1 x Intel Dual-Core Xeon 5130 / 2 GHz ( 1333 MHz ) - LGA771 Socket - L2 4 MB ( 2 x 2 MB )

Intel Processor upgrade - 1 x Intel Dual-Core Xeon 5130 / 2 GHz ( 1333 MHz ) - LGA771 Socket - L2 4 MB ( 2 x 2 MB )

The platform of choice keeps getting better. Designed fordual-processor server and workstation platforms Intel Xeonprocessors give you the freedom to focus more on your business andhelp you gain greater flexibility and lower costs. Put the IntelXeon

Amazon UK
£430.18

HP Bl460c Dual Processor Capable, 1 X

HP Bl460c Dual Processor Capable, 1 X

Hp Proliant Bl460c Intel Xeon 5440 Quad Core / 4Gb / Hot Plug Sff / 3 Year Nbd Warranty / Blade Server

Misco
£1174.99

HP VX867EA/ABU

HP VX867EA/ABU

The mobility you want. at a price you can afford. Go up to seven hours unplugged without giving up performance or style. The thin. lightweight HP Pavilion VX867EA notebook PC is packed with power inside a bold aluminium chassis. AMD Athlon Neo. L335 processor model number,1.6 GHz processor clock speed,800 MHz

Laskys
£514.99

Rocky III

Rocky III

ASDA
£4.08

Intel Core i7 920 "D0 Stepping" 2.66Ghz (Nehalem) (Socket LGA1366) - Retail

Intel Core i7 920 "D0 Stepping" 2.66Ghz (Nehalem) (Socket LGA1366) - Retail

Intel Core i7 920 "D0 Stepping" 2.66Ghz (Nehalem) (Socket LGA1366) - Retail

Novatech Direct Ltd.
£216.99

Intel E1600 Celeron Dual Core Processor - 2.40 GHz, 512K Cache, 800MHz FSB, Socket LGA775, 65 nm, 3 Year Warranty, Retail Boxed

Intel E1600 Celeron Dual Core Processor - 2.40 GHz, 512K Cache, 800MHz FSB, Socket LGA775, 65 nm, 3 Year Warranty, Retail Boxed

Intel E1600 Celeron Dual Core Processor - 2.40 GHz, 512K Cache, 800MHz FSB, Socket LGA775, 65 nm, 3 Year Warranty, Retail Boxed

Amazon UK
£45.40

Intel E2220 Pentium Dual-Core Processor - 2.40 GHz, 1MB L2 Cache, 800MHz FSB, Socket LGA775, 65 nm, 3 Year Warranty, Retail Boxed

Intel E2220 Pentium Dual-Core Processor - 2.40 GHz, 1MB L2 Cache, 800MHz FSB, Socket LGA775, 65 nm, 3 Year Warranty, Retail Boxed

PENTIUM DUAL CORE E2220 2.4GHZ SKT775 FSB800 1MB CACHE BOXED IN

Amazon UK
£59.65

Intel i7-860 Quad Core Processor - 2.80 GHz, 8MB Cache, 2.5 GT/sec, Socket 1156, 45 nm, 3 Year Warranty, Retail Boxed

Intel i7-860 Quad Core Processor - 2.80 GHz, 8MB Cache, 2.5 GT/sec, Socket 1156, 45 nm, 3 Year Warranty, Retail Boxed

Intel Core i7 (860) 2.8GHz Processor 8192KB L3 Cache 4.8GT/s Bus Speed (Boxed).

Amazon UK
£226.20

Intel P8400 Mobile Core 2 Duo Processor - 2.26 GHz, 3MB L2 Cache, 1066MHz FSB, Socket P/FCPGA8, 45 nm, 3 Year Warranty, Retail Boxed

Intel P8400 Mobile Core 2 Duo Processor - 2.26 GHz, 3MB L2 Cache, 1066MHz FSB, Socket P/FCPGA8, 45 nm, 3 Year Warranty, Retail Boxed

The Intel Core 2 Duo processor is Intel's second-generation mobiledual-core processor designed to deliver breakthrough performanceand great power savings. BX80577P8400

Amazon UK
£185.89

Intel T9600 Core 2 Duo Mobile Processor - 2.80 GHz, 6144KB L2 Cache, 1066MHz FSB, Boxed

Intel T9600 Core 2 Duo Mobile Processor - 2.80 GHz, 6144KB L2 Cache, 1066MHz FSB, Boxed

Intel T9600 Core 2 Duo Mobile Processor - 2.80 GHz, 6144KB L2 Cache, 1066MHz FSB, Boxed

Amazon UK
£260.96

Intel P9500 Core 2 Duo Mobile Processor - 2.53 GHz, 6144KB L2 1066MHz Boxed

Intel P9500 Core 2 Duo Mobile Processor - 2.53 GHz, 6144KB L2 1066MHz Boxed

Intel P9500 Core 2 Duo Mobile Processor - 2.53 GHz, 6144KB L2 1066MHz Boxed

Amazon UK
£278.44

Intel Processor - 1 x Intel Xeon 3.4 GHz ( 800 MHz ) - Socket 604 - L2 2 MB - Box

Intel Processor - 1 x Intel Xeon 3.4 GHz ( 800 MHz ) - Socket 604 - L2 2 MB - Box

Your customers need solutions that offerperformancereliabilityversatilityand low ownership costs.Dual-processor workstations based on Intel Xeon processors deliverall this and more from the industry leader in enterprisetechnology.The latest Intel Xe

Amazon UK
£376.54

AMD Processor - 1 x AMD Dual-Core Opteron 1210 / 1.8 GHz - Socket AM2 - L2 2 MB ( 2 x 1 MB ) - Box

AMD Processor - 1 x AMD Dual-Core Opteron 1210 / 1.8 GHz - Socket AM2 - L2 2 MB ( 2 x 1 MB ) - Box

The AMD Opteron processor enabling simultaneous 32- and 64-bitcomputing represents the landmark introduction of AMD64 withDirect Connect Architecture. The AMD Opteron processor is designedto run existing 32-bit applications with outstanding performa

Amazon UK
£196.85

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