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Instructions Create a Word document and name it YourtastName YourFirstName Syste

ID: 3734346 • Letter: I

Question

Instructions Create a Word document and name it YourtastName YourFirstName System Unit. Replace YourtastName YourFirstName with your actual first and last name. Type your name at the top and then press Enter Type the component number, the component name, and the purpose/description of the component A definition should include what the device is and what the device does. Each response is to be on a separate line. Completeness of your answers as well as quality, spelling and grammar are part of your score When you have described all the components, save and close your Word document and submit your file at the class Web site. 3. Power Supply 1. Hard Drive 4. CPU

Explanation / Answer

Hard Drive - Hard Drive is non volatile memory. It stores the data permanently and retrieves data from computers. It is secondary storage device that consists one or more platters to which data is written using a magnetic head, all inside of an air-sealed casing.Sometimes abbreviated as a HD,HDD, Hard drive.

Fan - It is a harware device that keeps overall computer cool by circulating air to or from the computer component
       There are many types of fan:
       CPU Fan: It on the top of the processor located. Work is to Cooling the processor.
       Case Fan: It located inside of the computer case. Work is to out the hotter air from case.
       Power Supply Fan: It located inside a power supply. work is to blows hotter air from computer.
       Video Card Fan: It located on video card. It keeps the video card cool when playing game, editing video etc.
      
Power supply - CPU is brain of the computer. It contains memory unit which is called registers. It is hardware device which recieves power form electrical outlet and converts from alternate current(AC) to direct current(DC). It regulates voltage to eliminate spikes and surges common in most electrical systems. Not all power supplies, however, do an adequate voltage-regulation job, so a computer is always susceptible to large voltage fluctuations.

CPU - Central Processing Unit referred as Processor, central processor or microprocessor. It works is to control the instructions and data flow to the other parts of the computers. It handles the instructions that recieves from hardware or software running on the computer.
       It has two components:
       Control Unit: Extracts instructions from memory then decodes and then executes them.
       Arithmetic Logic Unit(ALU): It handles the arithmetic and logical operations.

Expansion card - It is also hardware device which extend the functionality of the computer by adding the extra hardware that is sound card, lan card, video card, tv tuner etc.

Expansion Slot - There are different types of expansion slot but it mainly work is to extend the functionality of the computer by adding the expansion card into the expansion slot.
Different types of expansion slots are: PCI Express, PCI(Peripheral Component Interconnect), AGP (Accelerated Graphics Port),ExpressCard & PC,ISA.

Motherboard - Motherboard is essential part of the computer. It is printed circuit board(PCB). Motherboard is a computers central communications backbone connectivity point, through which all components and external peripherals connected including the CPU. It contains a number of sockets and slots to connect the other components.

RAM - Random Access Memory(RAM) that can read and write data randomly. It is much faster than HDD, SDD or optical drive so they can quickly intract with processor. Data in RAM remains untill the computer is on, when the computer is off RAN data will be loss. when the computer is turn on the os data and is loaded into ram to fast intract with the processor.

Memory Slots - Memory slot is place where the RAM is inserted into computer. There are four slot into the computer. generally all are not filled but if wants to increase by adding exrtra RAM user can insert other ram into the memory slot.

USB port - It is a connection interface that user can connect the extra device. The most common usb port are plug-n-play in todays computers.