Hardware Components Of Cpu And Their Functions Pdf
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My company has been approached by the producers of the TV programme The Gadget Show to write a blog or website to help their viewers understand the different elements of a computer system.
A computer is a complex machine. While most of it works on a microscopic level, it certainly has recognizable macroscopic components that contribute to its uses. A computer can be used to do just about anything from simple calculations to preparing reports to sending rockets into space to simulating the spread of cancer in body organs.
PC hardware, such as a desktop computer, is the most common type of IT hardware purchased by a small business. The cost of hardware depends on its specification , which in turn is determined by some key components. When you buy PC hardware, you need to decide what the specification of these key components should be. The processor is the driver of the computer. Processors are usually differentiated by speed, measured in gigahertz GHz.
The higher the GHz, the faster the computer will run. You should buy the fastest processor you can afford, but dual or quad-core processors running at speeds of 2 GHz or above will normally be enough for most business functions, eg word processing, spreadsheets and some multimedia. The processor uses memory to run programs. Generally, the more RAM you have, the better your computer will run when using several programs at once. Your computer should have enough memory to make the most of the processor speed.
To use multiple modern software applications effectively, you should have at least 2 gigabytes GB of RAM and preferably 4 GB or above for more memory intense software applications, such as design, photography or video editing. The hard disk stores the data you create in your business, as well as the programs you use. A typical office computer will have at least GB of hard disk space. Some new laptops and specialist performance computers come with solid state drives SSD.
These drives are silent because they have no moving parts and are five to eight times faster than the standard magnetic hard disk drives used in most desktop computers. Although SSD can offer significant performance advantages, the cost per GB of storage is approximately four times more expensive for the same storage capacity.
You can use external plug-ins, such as USB memory sticks and portable external hard drives, to supplement your computer's storage requirements. The monitor is the computer's display screen. Liquid Crystal Display LCD or flat screen monitors offer reduced bulk and lower power consumption, relative to the older style cathode ray tube CRT monitors. Monitors are normally measured diagonally in inches - typically 19, 22 or 24 inches. Larger or wide-screen monitors allow you to compare two documents on-screen.
Many monitors have an aspect ratio - the proportion of image width to height - of , although screens with a ratio are becoming more widely available and offer higher resolution. The keyboard and mouse usually come as part of a bundle, but you may be able to select wireless devices that make desktops neater. There are alternative computers to conventional PCs available, such as Apple Macs.
These have historically been used to support desktop publishing software but now also offer a comparable system for general office use.
Computer hardware for business Computer hardware components and specifications. Central processing unit The processor is the driver of the computer. Random access memory RAM The processor uses memory to run programs. Hard disk The hard disk stores the data you create in your business, as well as the programs you use. Peripherals The monitor is the computer's display screen. Printer-friendly version. Invest NI Helpline. Computer hardware. Also on this site. Computer software for business.
Computer networking. Choose an IT supplier for your business.
Parts of the Computer & Their Uses
CPU respects your privacy. You can trust us. Computers, love them or hate them, you most likely use them on a daily basis and would be lost without them. Like the car, these machines are an integral part of modern society, but few of us know the first thing about them beyond how to use them. Yes, computers are complicated, but it can really help to know a bit about the internal components of your trusty computer.
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.
7 essential hardware components
PC hardware, such as a desktop computer, is the most common type of IT hardware purchased by a small business. The cost of hardware depends on its specification , which in turn is determined by some key components. When you buy PC hardware, you need to decide what the specification of these key components should be.
Computer hardware includes the physical parts of a computer , such as the case ,  central processing unit CPU , monitor , mouse , keyboard , computer data storage , graphics card , sound card , speakers and motherboard. By contrast, software is the set of instructions that can be stored and run by hardware. Hardware is so-termed because it is " hard " or rigid with respect to changes, whereas software is "soft" because it is easy to change. Hardware is typically directed by the software to execute any command or instruction. A combination of hardware and software forms a usable computing system, although other systems exist with only hardware.
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