Computer Hardware And Software Pdf
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2.3. Introduction to Computers
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.
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 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 CPU Central Processing Unit or processor is responsible for processing all information from programs run by your computer. This means that a processor advertising a high GHz rating will likely perform faster than a similarly specified processor of the same brand and age. The role of RAM is to temporarily store on-the-fly information created by programs and to do so in a way that makes this data immediately accessible.
The tasks that require random memory could be; rendering images for graphic design, edited video or photographs, multi-tasking with multiple apps open for example, running a game on one screen and chatting via Discord on the other.
Find out how much memory your computer needs. 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. Find out more about hard drives and how they work. There are two different types of storage devices: the traditional hard disk drive HDD and the newer solid state drives SSD.
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. Find out more about computer storage and how solid state drives work.
Especially important for 3D rendering, the GPU does exactly what its name suggests and processes huge batches of graphic data. 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. 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. 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.
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March 10, Upgrade your system storage with our range of solid state drives. Find prices, specs and customer reviews to help choose the best device for you. March 05, Every computer needs RAM to work properly, but what does it do? Find out with Crucial's explanation of computer memory. February 07, Discover more about computer form factors and how they apply to your hardware. Find a product Part no. Your search did not match any active Crucial part numbers or configuration IDs.
Find articles and site content Enter keywords. Back to results. What is a Motherboard? What is a Hard Drive? Related Articles. Crucial System Scanner March 10, Upgrade your system storage with our range of solid state drives. Read more. What is Computer Memory? March 05, Every computer needs RAM to work properly, but what does it do? What is a Form Factor? February 07, Discover more about computer form factors and how they apply to your hardware.
Computer Hardware and Software
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Unit of competency details
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.
Add to Likebox - Bolt with nut closeup on a black background. Hardware components are further divided into three groups. The pictures of computers mostly consist of laptops and desktops but we also have some images of the hardware and circuit board pictures. Computer Hardware: Hardware refers to the physical components of a computer. For example, many home routers will often act as a combination router, switch, and firewall.
Unit Descriptor. This unit covers upgrading and maintaining computers, computer devices and peripherals and installing, maintaining and configuring software. It encompasses safe working practices, installing and testing the upgrading components, locating faults in hardware components, replacing faulty subsystems, installing and testing the operating system and application software, testing functionality, rectifying malfunctions, following written and oral instruction and procedures and applying appropriate customer relations. This unit applies to all aspects of Electrotechnology — engineering applications only.