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The central processing unit (CPU) is the portion of a computer system that carries out the instructions of a computer program, to perform the basic arithmetical, logical, and input/output operations of the system. The CPU plays a role somewhat analogous to the brain in the computer. The term has been in use in the computer industry at least since the early 1960s.The form, design and implementation of CPUs have changed dramatically since the earliest examples, but their fundamental operation remains much the same.
On large machines, CPUs require one or more printed circuit boards. On personal computers and small workstations, the CPU is housed in a single silicon chip called a microprocessor. Since the 1970s the microprocessor class of CPUs has almost completely overtaken all other CPU implementations. Modern CPUs are large scale integrated circuits in packages typically less than four centimeters square, with hundreds of connecting pins.
Two typical components of a CPU are the arithmetic logic unit (ALU), which performs arithmetic and logical operations, and the control unit (CU), which extracts instructions from memory and decodes and executes them, calling on the ALU when necessary.
Not all computational systems rely on a central processing unit. An array processor or vector processor has multiple parallel computing elements, with no one unit considered the "center". In the distributed computing model, problems are solved by a distributed interconnected set of processors.
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Got a quick close up of my motherboard before I started assembling and installing. Lots and lots of details in these things. Crazy.
In 2015 I built a computer for photo processing. It is still in use (for PC games) 8 years later.
Over the years, it has had a new graphics card, an internet adapter, upgraded memory and an extra fan; also it needed a replacement PSU (power supply unit); and now in order to replace Windows 8.1 with Windows 11 it has had a new motherboard (main board), a new CPU (central processing unit) and the SSD (solid state drive) has been replaced with a bigger PCIe style SSD; oh, and the memory has been doubled again.
However, it is good to know that the computer is still in use after all this time.
(I have in mind here the Wikipedia article called ‘Ship of Thesius’. The concept is also known popularly in the UK as ‘Trigger’s broom’).
Takumar-A 28mm f2.8 vintage lens.
* Keyboard cuff links, designed and made by MarcB, out of recycled laptop keys.
* Toetsenbord manchetknopen, ontworpen en gemaakt door MarcB, uit gerecycleerde laptop toetsen.
Great for the office or a Geeky desktop accessory! This computer bug is well contained within a "habitat" 60mm x 15mm plastic petri dish with a keyboard circuitry base. Each bug is completely unique!
Your Pixel Pet's Name:
Yeerk
A Yeerk is a parasite that takes over the body of another being by infesting a host's brain through their ear canal. Yeerks in their natural state have decent senses of smell and touch, but they are blind until they enter a host, as they do not have eyes. They possess antennae-like protrusions called palps, as well as osmosis nodes, small organs that process nutrients in the Yeerks' native pools. Although the presence of a circulatory system of some kind is debatable, apparently Yeerks have no hearts, as evidenced by the description of a human morphing into a Yeerk, in which the human heart stops and dissolves away completely.
Yeerks communicate in their natural state using a language of ultrasonic squeaks, and use sonar to get a basic picture of the surroundings.
A random computer part I found at a car boot sale ! Bought for 50p - I reckon It may be a modem.....
My hubby is building me a brand new computer so I can process photos a little faster, use it for grad school, other regular use... oh, and play video games with him again (this computer gets bogged down every time I try to play L4D2) :)
All those little PC Boards connections look like tiny city roads in a tiny city, don't they?
I got my first explored!! Whoa! :D Thanks (^-^)
[ODT - GADGETS]
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