The central processing unit (CPU), also called a processor, is located inside the computer case on the motherboard. It is sometimes called the brain of the computer, and its job is to carry out commands. Whenever you press a key, click the mouse, or start an application, you're sending instructions to the CPU.The CPU is usually a two-inch ceramic square with a silicon chip located inside. The chip is usually about the size of a thumbnail. The CPU fits into the motherboard's CPU socket, which is covered by the heat sink, an object that absorbs heat from the CPU.A processor's speed is measured in megahertz (MHz), or millions of instructions per second; and gigahertz (GHz), or billions of instructions per second.

• 10 Components Of A Cpu
• Basic Components Of Cpu

A faster processor can execute instructions more quickly. However, the actual speed of the computer depends on the speed of many different components—not just the processor. RAM (random access memory). RAM is your system's short-term memory. Whenever your computer performs calculations, it temporarily stores the data in the RAM until it is needed.This short-term memory disappears when the computer is turned off. If you're working on a document, spreadsheet, or other type of file, you'll need to save it to avoid losing it. When you save a file, the data is written to the hard drive, which acts as long-term storage.RAM is measured in megabytes (MB) or gigabytes (GB).

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Computer Parts & Accessories Description and Classification PHOTO ITEM TARIFF NUMBER E41 APPLICATION Computer System 8471.49.00 YES Laptops 8471.30.00 YES Convertible Tablet PC 8471.30.00 YES Pen Tablet 8471.60.00 NO Tablet/Slate 8471.30.00 YES PC Case (also called the frame). Formulas & Functions in Microsoft Excel Theresa A Scott, MS Biostatistician III Department of Biostatistics. Feel free to contact me at theresa.scott@vanderbilt.edu or (615) 343-1713, or drop. Functions differ from regular formulas in that, after the equal sign, you supply the cell addresses but not.

The more RAM you have, the more things your computer can do at the same time. If you don't have enough RAM, you may notice that your computer is sluggish when you have several programs open. Because of this, many people add extra RAM to their computers to improve performance. The power supply unit in a computer converts the power from the wall outlet to the type of power needed by the computer. It sends power through cables to the motherboard and other components.If you decide to open the computer case and take a look, make sure to unplug the computer first. Before touching the inside of the computer, you should touch a grounded metal object —or a metal part of the computer casing —to discharge any static buildup.

Static electricity can be transmitted through the computer circuits, which can seriously damage your machine. Expansion cardsMost computers have expansion slots on the motherboard that allow you to add various types of expansion cards. These are sometimes called PCI (peripheral component interconnect) cards. You may never need to add any PCI cards because most motherboards have built-in video, sound, network, and other capabilities.However, if you want to boost the performance of your computer or update the capabilities of an older computer, you can always add one or more cards. Below are some of the most common types of expansion cards. The video card is responsible for what you see on the monitor. Most computers have a GPU (graphics processing unit) built into the motherboard instead of having a separate video card.

If you like playing graphics-intensive games, you can add a faster video card to one of the expansion slots to get better performance. Sound cardThe sound card —also called an audio card —is responsible for what you hear in the speakers or headphones. Most motherboards have integrated sound, but you can upgrade to a dedicated sound card for higher-quality sound. Network card.

Want to know what hardware is in your computer? Become a computer pro with our quick guide to these essential components and their roles.Quite simply, computer hardware is the physical components that a computer system requires to function. It encompasses everything with a circuit board that operates within a PC or laptop; including the motherboard, graphics card, CPU (Central Processing Unit), ventilation fans, webcam, power supply, and so on.Although the design of hardware differs between desktop PCs and laptops due to their differences in size, the same core components will be found in both. Without hardware, there would be no way of running the essential software that makes computers so useful.

Software is defined as the virtual programs that run on your computer; that is, operating system, internet browser, word-processing documents, etc.Although a computer can function only when both hardware and software are working together, the speed of a system will largely rely on the hardware used.When building up a new computer, or simply replacing old parts, you may need to know the specific hardware in your computer. The purpose of this guide is therefore to help you understand the inner-workings of your computer.

10 Components Of A Cpu

The motherboard is at the center of what makes a PC work. It houses the CPU and is a hub that all other hardware runs through. The motherboard acts as a brain; allocating power where it’s needed, communicating with and coordinating across all other components – making it one of the most important pieces of hardware in a computer.When choosing a motherboard, it’s important to check what hardware ports the motherboard supplies. It’s vital to check how many USB ports, and what grade (USB 2.0, 3.0, 3.1) they are, as well as what display ports are used (HDMI, DVI, RGB) and how many of each there are.

The ports on the motherboard will also help you define what other hardware will be compatible with your computer, such as what type of RAM and graphics card you can use.Although the motherboard is just one piece of circuitry, it is home to another one of the most important pieces of hardware: the processor. The hard drive is a storage device responsible for storing permanent and temporary data. This data comes in many different forms, but is essentially anything saved or installed to a computer: for example, computer programs, family photos, operating system, word-processing documents, and so on.There are two different types of storage devices: the traditional hard disk drive (HDD) and the newer solid state drives (SSD).

Basic Components Of Cpu

Hard disk drives work by writing binary data onto spinning magnetic disks called platters that rotate at high speeds, while a solid-state drive stores data by using static flash memory chips. Especially important for 3D rendering, the GPU does exactly what its name suggests and processes huge batches of graphic data. You will find that your computer’s graphics card has at least one GPU. As opposed to the basic on-board graphic capabilities that PC motherboards supply, dedicated graphics cards interface with the motherboard via an expansion slot to work almost exclusively on graphic rendering. This also means you can upgrade your graphics card if you want to get a bit more performance from your PC.Not only this, but modern GPUs fulfil a broad computational workload beyond just rendering, making them an extension to the central processing unit. 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.A modern computer will generally need a PSU that’s rated between 500W – 850W to effectively power all hardware, although the size of the PSU will depend entirely on the power consumption of the system. Computers that are used for highly intensive tasks such as graphic design or gaming will require more powerful components and thus will need a bigger PSU to cater to this additional need.Without the right amount of power, components won’t be able to run effectively and the computer might experience crashes or simply fail to boot at all. It’s recommended to have a power supply that more than covers your system usage. Not only do you guard yourself against system failure, you also future-proof yourself against needing a new PSU when you upgrade to more powerful PC components.Understanding your computer and its hardware components can prove very useful when the time comes to upgrade or replace any parts, or when building a computer. Should a problem arise with the internal workings of your computer, you will have a better understanding of the importance of each component, the need for them to be in good working condition and how to go about solving any issues.