Parts of computer system unit

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 The document discusses the key components that make up a computer system unit. It describes 13 components: 1) ATX power supply, 2) central processing unit (CPU), 3) CPU fan, 4) CPU heat sink, 5) video card, 6) RAM, 7) modem, 8) sound card, 9) ribbon cable, 10) SATA cable, 11) motherboard, 12) DVD ROM drive, and 13) hard disk drive. 






1.ATX power supply

The most common computer power supplies are built to conform to the ATX form factor. ATX power supply also are designed to turn on and offf using a signal from the motherboard,and provide support for modern functions such as the standby mode availble in many computers.


2.Central Processing Unit(CPU)

CPU is the portion of a computer system that carries out the instructions of computer program,and is the primary element carrying  out the computer's function.The CPU carries out each instruction of the program in sequunce'to perfor, the basic arithmatic, logical,and input/output operations of the system.










3.CPU fan

Use for cooling purposes,and may refer to fans tha draw cooler air into the case from the outside,expel warm from inside,or move air across a heatsink to cool a particuler components.








4.CPU heatsink

Heatsink is a term for a component or assemble thst transfers heat generates within a solid material to a fluid medium,such as air or liquidHeat sink aldo help to coo; electronic and optoelectronic devices,such as higher power lasers and light emitiing diodes.









5.Video Card

A video card,video adapter,graphics asselerator card,display adapter  or graphics card is an expanation card whose function is to generate output image to a display.Many video card accelerated rendering of 3D scenes and 2D graphics,video chapter,TV-tuner adapter,FireWire,light pen, TV ouyput to connect multiple monitors.

6.RAM

Random-accesss memory,the most common computer memory which can be used by programs to perform necessary tasks ehile the computer is on;an intergrated circuit memory chi[ allows information to be stored or accesssed in any order and all storage locations are equally accessible.






7.Modem

 Modem is a divice that modulates an analog carrier signal to encode digital information,and also demodulaters such a carrier signal to decode the transmitted information.The goal is to produce a signal that can be transmitted easily and decoded to reproduce the original digital data.






8.Sound Card

sound card is a computer expansion card that facilitates the input and output of audio signals to and from a computer under control of computer programs.Many computers have sound capabilities built in,ehile others require adiitional expansion card to provide for audio capability.




9.Ribbon Cable

Ribbon is a cable with many conducting wires running parallel to each other on the same flat plane.As result the cable is wide and flat.IT is commonly seen for internal peripherals in computers,such as hard drives,CD deive and floppy drives.On some older computer systems they were commonly used for external connections as well.



10.SATA Cable

A SATA (Serial Advanced Technology Attachment) cable is used to connect storage devices like hard drives, solid-state drives (SSDs), and optical drives to a computer's motherboard. It allows data transfer between the storage device and the computer. SATA cables are commonly found in desktops and laptops for connecting internal drives.

Here are some key points about SATA cables:

  1. Data Transfer: SATA cables are designed to transfer data quickly between the motherboard and storage devices, with newer versions (like SATA III) offering speeds of up to 6 Gb/s (gigabits per second).

  2. Connector Design: The cable has a distinctive, thin, flat design with a 7-pin connector on each end, making it much smaller and more flexible than the older parallel ATA (PATA) cables.

  3. Versions: There are different versions of SATA cables (SATA I, II, III), each supporting different data transfer speeds. SATA III is the most common in modern systems.

  4. Power Connection: While SATA cables handle data transfer, a separate power cable is used to provide power to the drives.


11.Motherboard

The motherboard is the main circuit board of a computer, and it serves as the central hub that connects and allows communication between all the computer's hardware components. It's like the "backbone" of the system, linking together parts like the CPU (Central Processing Unit), RAM (Random Access Memory), storage devices, graphics card, and other peripherals.



12.DVD

A DVD (Digital Versatile Disc or Digital Video Disc) is a type of optical storage medium used to store data, including videos, music, software, and other types of files. DVDs are similar to CDs but offer much higher storage capacity, making them a popular format for video and data distribution, especially before the widespread use of streaming services and digital downloads.

13.Hard Disk Drive

A Hard Disk Drive (HDD) is a type of storage device used to store and retrieve digital data in computers and other devices. It has been one of the most common types of storage for decades. HDDs use magnetic storage to store data on rotating disks (also called platters), which are read by a mechanical arm with a read/write head.

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