Your personal computer is the complete system containing several components like a monitor, the system unit, the speakers, the mouse, keyboard and software. The system unit has a floppy disk drive and a CD or DVD drive which can be used to insert your CDs and DVDs. Inside the system is a another drive called the hard drive and whatever you store in your computer gets stored on the hard drive.
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A notebook computer is a personal computer that is very light in weight and fit to be carried in a briefcase. The Notebook Computer is a portable device and it has a display screen which is made with a different technique. The screen quality of the Notebook Computer varies with many having VGA resolution. There are screens such as Active-matrix that produce crisp images but are not capable of instant refresh such as the regular monitors. The Notebook Computer has a CPU, memory space and disk drives also like the personal computer but in a smaller version. They come with batteries that help in the running of the computer without plugging them in.
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The hard disk contains data which can be of two types. The first type is the operating system with different software that is housed in one partition. The other type is the actual data that the user works on. When a hard disk crash takes place it causes permanent loss of data. In such situations the computer does not boot up and gives only error messages. When the computer is turned on the head gets stuck and causes scratches on the surface meant for recording of data and a scratching sound is emitted which is an indication of a hard disk crash. Recovery of data is expensive and done by disassembling the disk and files are extracted using special tools and copied onto another CD or DVD.
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USB is the short form of Universal Serial Bus. This is the hassle free way to connect instantly to new hardware such as scanners, joysticks, digital speakers, a PC telephone or digital cameras from the existing computer. There is no need for any add in cards or DIP switch settings to add peripheral devices and new capabilities to the PC. There is no need to shut down and restart the PC to plug in or remove a peripheral device .The new device is automatically traced by the PC and configures the software. USB also helps to connect to numerous peripherals at the same time.
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A pen drive is an external device that is removable and used for transferring of data from one PC to another. The pen drive saves time and has lot of space to store data unlike the CDs and floppy disks and they are very portable too. The pen drive is the most popular method for transferring large files. They are dust free and shock free too. There are varying pen drives available with storage capacities of 32 MB to 10 GB. Due to its convenience the manufacturers are introducing a new feature
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A sound card is a part of the computer that helps to process audio files to provide playback through the speakers connected to the computer. A sound card is capable of playing music files and voice and supports various audio file formats such as mp3, wav, cda and many others. The sound card has an interface with numerous output and input ports at the rear of the computer. The speakers are plugged directly at the back of the sound card. The sound card also has a line-in port for recording from an external device like a digital audio player and also for listening to the device.
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The computers have several tools to help in the functioning of the system such as the hardware and software. Hardware such as RAM, CPU, storage, input and output devices and connections helps to run the various software and application programs for display of images, texts and sounds. Software sends out instructions to the computer hardware to provide the desired information to the user. Application Programs allow the functioning of specific tasks such as creating slide presentations, preparing reports, browsing the net, word processing, database programs, editing images, drawing and painting. The application programs use the operating system and other supporting programs
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An IPod uses the MP4 format for the playing of music that is recognized only by Apple products. Apple has a music site iTunes that allows downloading of music only in MP4 format. The IPod consists of the iTunes software that helps to convert the MP3 format to MP4 format and make it compatible for playing the music. The IPods come with a battery, earphones with a standard pouch, a docking station for transfer of files and for charging the IPod, the iTunes software CD and an instruction manual. The IPod can be connected to the car stereo for listening to music in the car. It can also be played through the home stereo.
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A gaming console is an interactive game that uses multimedia for entertainment. This is an electronic computer gadget that lets users play games in more exciting and fun environments. The gaming console has special images and sounds that are displayed on television. The players can control the device and manipulate it with the help of a controller which is directly connected to the console. The controller has analog joysticks that allow the players to maneuver the images on the screen. The players can play their favorite game by inserting discs into the console. They can also download games from the internet.
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A graphics card is also called a video card which is a hardware that is installed in the computer that helps to provide images on the computer screen. The graphics card should be capable of displaying the best resolution. The graphic images are larger files than the text files with large amounts of data that need to be processed by the graphics card. A speedy graphics card has its own inbuilt memory for this purpose so that it does not put any unnecessary pressure on the system
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