First of all what is a computer?. A compupter is one of the greatest inventions of man and it has many many changes in functions, memory space, size and portability. what makes a computer an amazing invetions is the ability to store and process a massive amount of information, which used to perform many tasks or even help creat new gadgets.
Lets take a look at the different types of computers that help us understand their functions and whaty they are used for.
A PC is a computer used for personal use. Its convenient size, price and simple functions make it easy for the end-user to work on it without any intervention from computer operators.
Computer made to be placed in the desk and not for portability is called a desktop. These are usally kept in a somewhat permanent location and can be a little big. They usally have more storage and power compared to their movable counterparts.
A PC that you can take anywhere is called a laptop. The name comes from the fact you can keep it in your lap and use it. The name notebook comes from the fact you can carry the divice to classes or meetings conveniently and store any notes or information in it. It has the monitor, keyboard, pointing device, CPU, memory and hard drive in one system.
This is similar to a laptop, the only difference is that it is a much smaller siz, that makes it more portable. Also less expensive and performs the basic functions, but its internal parts are not as strong as the dekstop or laptop.
This is a computer with much larger, powerful processor, greater memory space and extra ability to do specific kind of work. These types of computers are used by programmers, game developers, video or sound editors and graphic designers.
A Personal Digital Assistant is a small, highly integrated computer mainly using flash memory to store memory instead of a hard drive. It is touch based technology and dose not come with a keyboard. That whitch use's a digital pen or input call handheld computers. It is light, portable, had good battery life and fits within your palm, and because it is also called a palmtop.
The Server's prioity is to provide certain services to other computers or a whole network of computers. Its larger then any averge computer and generally a whole room is necessary to fit the whole server. it has powerful processors, additional amount of memory and bigger hard drives.
The Mainframe computers are used by large companies and organisations to perform critical taks that involve bulk data processing like transaction processing, census information, statistical data and so on. They consist of extensive input and ouput facilities, are very stable and dependable and handle millions of transactions every day.
These type of computers processes data much faster then a regular system. it is the leader in processing capacity and costs millions of dollars. A supercomputer is used for sensitive and calculation-intensive work such as scientifc research, physical simulation, climate studies, oil and natural gas exploration, wweather forecasting, quantum physics, to name a few.
This device is worn on the body like a watch or visor and is often used by military professionals or doctors to track human actions if their hands are engaged in other activites. smart watches are fabric PCs are examples of wearable computers.
All these types of computers serve a different purpose but there are a few things common in all of them, that they help us save time in achieving accuracy in work. From occupying a whole room to fitting in our pocket, the computer has indeed came a long way. And the best part is spite of all the developments and possibilities of what they can achiev are litmitless.
Hardware is the physical parts of the computer, like the key board, mouse, Mother board the screen. Those are all hardware components. Here are some images on what hardware parts look like.
To identify what type of hardware components you will need, can you take a look at the list below those are the most common hardware parts of a computer.
Here is a list of i tems, that are computer hardware.
Here are some common hardware that you might find connected to the outside of a computer, although many tablets, laptops and netbooks integrate some of these items into their housings:.
whenever RAM fault occurs your monitor shows a blue screen with a memory reference like x000xxx as a reboot interruption. RAM faults cannot be prefented but you can fix them. There may be frequent PC restarts. This is due to faulty RAM chips. These Faulty RAM chips are unable to store the boot laoder or NT loader file therefore the OS cannot find it and hence it shuts down all the processes, due to non-availability of the boot loader file in the RAM as a result the PC restarts again and again.
The laptop does not turn on at all no matter what you do. There are several possible scenarios that may lead to this outcome including the battery draining completely because of a malfunctioning AC adapter. Maybe the DC jack has to be replaced because it makes no contact with the motherboard. The worst scenario by far is the one with the failed motherboard. If that is the case, just go and buy yourself a new laptop.
It means that the computer system is making noise while running. The reason of Noisy Computer is Dirty Fan. The dust particles sticks on the Fan including the Heat Sink and other parts such as Motherboard and other electrical parts of computer .This dust Blocks the smooth action of Fan and causing the fan to make noise. Clean your system completely by removing motherboard from its place and also clean the Fan and Heat sink with a brush or soft cloth
For some careless guys, it’s easy to spill something on the laptop and it’s stopped working. Liquid spills are very dangerous and unpredictable. If it happened, turn off the laptop ASAP, remove the battery and do not use it until all internal parts are inspected for liquid damage. It’s still possible the laptop will work again after you clean the damage
There are numerous computer software issues that are elementary to fix, but hard to diagnose. When you successfully identify the appropriate problem, it becomes easy to iron out the pitfall. Now, let’s share the common software problems and solutions according to experience
It is a very generic problem with your computer. Your computer gets this problem by merely visiting a website. Some of the symptoms of PC viruses are strange behavior in the OS, non-responsive applications and slow performance. However, do not get scared because the solution to this problem is not hard. You can install antivirus program in your computer to get rid of this problem.
It is another generic problem that infects your computer. Malware means malicious software. Worms and Trojan Horses are some of the examples of common malware. Malware often enters your computer via mail attachments. It is really difficult to free your computer from malware. It is always suggested that you do a system restore and reinstall you
It is the most generic computer problem. Your computer can pick spyware from just about anything. Slowdown of computer is a symptom of spyware. You may also notice some certain programs that you have never installed in your computer. But the good thing is that you can find numerous programs in the market that can remove spyware, some of them are free as well.
If your computer doesn’t have any of the aforementioned problems, but still it is performing slowly, you need to do some couple of actions to fix the problem. Just execute a disk cleanup: “Start > All Programs > Accessories > System Tools > Disk Cleanup.” Defragment your hard drive: “Start > All Programs > Accessories > System Tools > Disk Defragmenter.”
When the computer is powerd on, the CPU starts executing software instructions from your BIOS (or UEFI), which is a special chip on your mainboard. This program will then request more instructions from a specific hard drive (or CD-ROM, or USB device, or network card), and your operating system will start executing.
The type of computer software and task's they do
Purpose to control your computer; When you turn on a computer, the operating system is usually the first piece of software you see. It lets you install software, organize your files, and tell your hardware what to do. The operating system keeps all your software and hardware (such as your mouse or printer) working together.
Purose:to write essays, novels, reports, or other types of text.Word-processing software lets you fix mistakes in your writing or rearrange text. You can check your spelling or count how many words you have entered. You can decorate your text by making it bold, changing its size, or using a different font.
purposeTrack budgets or investments, or make other calculations.Spreadsheets have rows and columns, like an accountant’s ledger. Calculations such as totals or averages can be done automatically.
Purpose; creat slide shows for meetings.Presentations feature short notes, pictures, and charts for an audience to see. You can add sounds or animation to make presentations more interesting. such as power point ect.
Purpose; organize and filter lists of data, such as addresses or inventories. A database contains information about groups of things, such as people or books or sales. The information is broken down into categories. For example, a table of books might have categories like title, author, publication date, and number of pages. A database management system helps you search all the tables in a database to locate specific data, summarize this data, or find trends.
purpose; Change digital photots and other images.Photo editors allow you to make your pictures brighter, emphasize a particular colour, or add artistic effects, such as blurs. You can fix common photography problems, such as overexposure or red-eye. You can also combine two or more photos or erase unwanted parts of photos.
Purpose; Have fun playn or experienceing challenges.With the different games available you can take the role of a race-car driver, starship pilot, or army commander, or you can play electronic versions of old favourites, such as chess or solitaire.
Purpose; Making a magazine, a poster or an advertisement. Desktop publishing software lets you arrange words and photos together, making layouts that are ready for professional printing.
Purpose; Creat blueprints or designs.With CAD software you can draw plans for bridges, buildings, gardens, engines, bicycles, or other objects and see what your design might look like in the real world
Purpose; View pages on the world wide web.You need a Web browser to visit Web pages like the Amazon.com bookstore or the CBC.ca news site. Web browsers store the addresses of your favourite pages so you can visit them again.
Purpose; send letters and files to other people.E-mail clients also keep and organize the messages you have sent or received. They store the e-mail addresses of your friends and colleagues.
All these software’s are always updated to keep up with today advancing technology. Allot of these programs you use daily every day. As new programs open up more doors these programs update so they can handle other programs such as games and graphics.
Another great tip to know is how to change the system settings in your computer, and how to uninstall programs that will also help remove programs that you don't use increasing your computer's speed. This will teach you step by step how to acces both.
First we will access system settings.
This will show you how to uninstall programs.