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Parts of a Computer

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Riley Erekson

on 12 October 2012

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Transcript of Parts of a Computer

Parts of a Computer Motherboard The motherboard uses tiny electrical paths (buses) to connect each component of the computer together. The more buses the computer has the faster it operates. It is the main logic board and most expensive part in computers. BIOS The basic input/output system makes sure all the other chips, hard drives, ports, and CPU function together. It is used to set up the computer software. The BIOS chip contains enough information to operate the computer all by itself. CPU The central processing unit is the brain of the computer. It interprets instructions given to the computer and tells the other components what they need to do. It contains the control unit and the logic unit, both working together to process commands. Heatsink and Fan The CPU needs a fan and a heatsink to keep from getting too hot. The heatsink cools the device by dispersing heat into the surrounding air, which prevents the CPU from overheating. Random Access Memory The RAM is the computer's main memory. Information is temporarily stored here while the computer is working with it. It is made up of tiny memory chips that make up a module. It is a user replaceable part. The more RAM you have installed the better your computer's performance. Hard Drive The hard drive is the main storage of information in a computer. All personal and system files are stored inside the hard drive; therefore, the faster hard drive you have the faster you can access data. Battery The battery is an alternative power source for a laptop. Once the battery is charged you can unplug your laptop and it will continue to run on the battery power. This is necessary for mobile use of computers. LCD Screen The LCD screen is a flat panel mounted inside the display panel. It uses light modulating properties of liquid crystals that indirectly emit light. Modem The modem transmits and receives digital data over telephone wires. Modems send data by converting it into audio signals and receive it by converting audio signals back into digital form. Disk Drive Disk drives are file storage devices such as a floppy drive, CD drive, and a DVD drive. These drives can be used to transfer data from computer to computer. Floppy drives are small storage disks. Usually CD drives are read only and stores files permanently. Video/Graphics Card The video graphics card coverts binary codes from the CPU and enables you to view it on a monitor. It is usually integrated into the system board. However, some laptops have a graphics card that can be removed separately from the motherboard. Video Cable This cable connects the motherboard to the laptop screen, carries data signal for the LCD screen, and provides power for the inverter board. Sound Board Most computers have their sound board built into the motherboard. In contains all audio components such as volume control, microphone jack, and the headphone jack. The heart of the computer! The power supply sends power to all the components, which allows them to operate. Power Supply Monitor The monitor is the part of the computer that allows you to see what the computer is processing, like a TV set. It is a peripheral device that outputs processed data. Wireless Network Card This internal card allows your computer to connect to the Internet without running a cable. It allows network capable devices to access the computer network. The keyboard allows the user to enter text commands into the computer system. This is the main input device. Keyboard Mouse The mouse allows the user to use a point and click interface to enter commands into the computer. Audio i The mouse allows the user to use a point and click interface to enter commands into the computer. Screen Hinges These hinges are what connect the display panel and base assembly in any laptop. CMOS/RTC Battery This battery provides power to the CMOS chip when the laptop is turned off or disconnected. Inverter Board The inverter board is a power supply for the backlight lamp located inside the LCD screen. Web Camera Newer computers often come with a webcam built into the display panel. It is located on a separate board and is not part of the LCD screen. Drive Controllers The drive controllers control the interface of the computer system to the hard drives. They let the hard drives work by controlling their operations and are usually located on the motherboard. Expansion Slots The accelerated graphics slots allow the addition of a video card to the computer system. Peripheral component interconnect (PCIs) are the most commonly used slots. They allow sound, security, and other add-on expansion cards to the system. Sources "Kids Online." Kids Online. N.p., n.d. Web. 10 Oct. 2012. <http://www.kids-online.net/learn/c_n_l.html>."Anatomy of a Computer." Computer Troubleshooters. N.p., 1991. Web. 10 Oct. 2012. <http://encinitascomputerhelp.com/tt-anatomy.htm>."Laptop Parts 101." Laptop Parts 101. Wordpress, n.d. Web. 10 Oct. 2012. <http://www.laptopparts101.com/>.
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