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Lac one 01 Parts of computer.pptx

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A computer is a programmable device that processes data and can perform mathematical and logical operations. It consists of both hardware and software. Key hardware components include the CPU, RAM, hard drive, motherboard, graphics card, power supply, and various input/output devices like the keyboard, mouse, and monitor. Software like operating systems and applications allow the hardware to function. Drivers are also needed to allow operating systems to communicate with hardware components.

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A computer is a programmable device that stores, retrieves, and processes data. A device that computes specially programmable electronic machine that perform high speed mathematical or logical operation. Is a collection of entities(hardware, and software ) that are designed to receive, process, manage and present information in a meaningful format. uninterruptible power supply 2
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1. Keyboard, mouse, Printer 2. Monitor(LCD)(CRT) 3. Desktop(Case) 4. Mother Board 5. CPU 6. RAM 7. Hard Disk(HDD)(SSD) 8. VGA(Graphics Card) 9. Power Supply Unit 10. LAN Card 11. Modem 12. CD-ROM 5
A keyboard is one of the ways to communicate with a computer. Typing a key from the keyboard sends a small portion of data to tell the computer which key was pressed Mouse A mouse allows the user to move a pointer displayed on the monitor and experience a more intuitive interaction with the computer. 6
Printer A printer can take an image sent by a computer and deliver it onto a sheet of paper. Scanner A scanner can take anything on paper and scan it to produce a replicated digital image. 7
A monitor is what you use to visualize the graphics data sent from the computers graphics card. LCD(Liquid Crystal Display) display that uses LCD technology to show clear images, and is found mostly in laptop computers and flat panel monitors. CRT(cathode-ray tube) The image on a CRT display is created by firing electrons from the back of the tube to phosphors located towards the front of the display. 8
Definition CRT stands for Cathode Ray Tube. LCD stands for Liquid Crystal Display. Power Consumpti on CRT consumes more power than LCD. LCD consumes much less power than CRT. Cost CRT is cheaper than LCD. LCD is costlier than CRT. Speed CRT is faster than LCD in response time. LCD is slower than CRT in response time. Size CRT is larger than LCD in size. LCD is smaller than CRT in size. Resolution CRT resolution is quiet lower than LCD. LCD resolution is quiet high than CRT thus have high image quality support. 9
This is the part that holds all of the internal components to make up the computer itself. 10
The motherboard is the main board that is screwed directly inside the computer case. All other cards and everything else plugs directly into the motherboard, hence its name. 11
The CPU is basically like the brain of a computer. It processes all the information on a computational level. 12
RAM is a data storage device that can provide fast read and write access. RAM is also volatile, which means that it loses all the stored data when power is lost. 13
A hard drive is found in most computers. Its usually a mechanical drive that stores all the data. Apart from storing data, it can also be used as a boot drive to run the operating system from it. 14
An SSD is also a type of hard drive, but it doesnt have any moving parts. It consists of a bank of flash memory that can hold a reasonable amount of data. While SSDs are increasing in size all the time, they arent cost-effective for storing large amounts of data. 15
A graphics card processes the data from the motherboard and sends the appropriate information to the monitor for it to be displayed. 16
A power supply mounts inside the computer case. This converts the AC mains supply from the wall socket and supplies the correct DC voltages to all the components inside the computer. 17
LAN card is a piece of hardware which is connected inside the linking the computer network using the MAC address for network to work. 18
A modem card is an internal type of modem that is plugged into the PCI slot of a PC motherboard. A modem is a communications device that allows a computer to send and receive data through telephone or cable lines. 19
A CD-ROM Drive or optical drive is the device used to read CD ROM disks. CD-ROM drives have speeds ranging from 1x to 72x, meaning it reads the CD roughly 72 times faster than the 1x version. Compact Disc Read-Only Memory, a CD-ROM is an optical disc containing audio or software data whose memory is read-only. As you would imagine, these drives are capable of playing audio CDs and reading data CDs, including CD-R and CD-RW discs. 20
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VGA Cable Also known as D-sub cable, analog video cable Connect one end to: computer monitor, television (PC input port) Connect other end to: VGA port on computer (see image below) 22
DVI Cable Connect one end to: computer monitor Connect other end to: DVI port on computer (see image below) 23
HDMI Cable Connect one end to: computer monitor, television Connect other end to: HDMI port on computer (see image below) 24
PS/2 Cable Connect one end to: PS/2 keyboard, PS/2 mouse Connect other end to: PS/2 ports on computer (see image below) Purple PS/2 port: keyboard Green PS/2 port: mouse 25
Ethernet Cable Also known as RJ-45 cable Connect one end to: router, network switch Connect other end to: Ethernet port on computer (see image below) 26
Audio Cable Connect one end to: computer speakers, 3.5mm headphones, 3.5mm microphone Connect other end to: audio ports on computer (see image below) Green audio port: computer speakers or headphones Pink audio port: microphone Blue audio port: MP3 player, CD player, DVD player, turntable, electric guitar etc. (line-in port to play and record sounds from the above devices) 27
USB Cable For USB computer cable connections, there are two popular formats: USB 2.0 and the newer USB 3.0 Since USB was intended to be the one computer cable connection to replace them all, it's no surprise that the possible uses for a USB port are quite mind-blowing Connect one end to: USB device Storage devices Input devices Output devices Wireless adapters Data (and charging) cable for mobile devices such as mobile phone, tablet, MP3 player Connect other end to: USB ports on computer (see image below) 28
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Computer Power Cord Connect one end to: AC power socket Connect other end to: power supply unit (see image below), computer monitor Note: Always turn off your power supply unit (with the 1-0 switch at the back) before connecting a power cord to it. 30
A driver, or device driver, is a set of files that tells a piece of hardware how to function by communicating with a computer's operating system. All pieces of hardware require a driver, from your internal computer components, such as your graphics card, to your external peripherals, like a printer. 31

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Lac one 01 Parts of computer.pptx

  • 1. 1
  • 2. A computer is a programmable device that stores, retrieves, and processes data. A device that computes specially programmable electronic machine that perform high speed mathematical or logical operation. Is a collection of entities(hardware, and software ) that are designed to receive, process, manage and present information in a meaningful format. uninterruptible power supply 2
  • 3. 3
  • 4. 4
  • 5. 1. Keyboard, mouse, Printer 2. Monitor(LCD)(CRT) 3. Desktop(Case) 4. Mother Board 5. CPU 6. RAM 7. Hard Disk(HDD)(SSD) 8. VGA(Graphics Card) 9. Power Supply Unit 10. LAN Card 11. Modem 12. CD-ROM 5
  • 6. A keyboard is one of the ways to communicate with a computer. Typing a key from the keyboard sends a small portion of data to tell the computer which key was pressed Mouse A mouse allows the user to move a pointer displayed on the monitor and experience a more intuitive interaction with the computer. 6
  • 7. Printer A printer can take an image sent by a computer and deliver it onto a sheet of paper. Scanner A scanner can take anything on paper and scan it to produce a replicated digital image. 7
  • 8. A monitor is what you use to visualize the graphics data sent from the computers graphics card. LCD(Liquid Crystal Display) display that uses LCD technology to show clear images, and is found mostly in laptop computers and flat panel monitors. CRT(cathode-ray tube) The image on a CRT display is created by firing electrons from the back of the tube to phosphors located towards the front of the display. 8
  • 9. Definition CRT stands for Cathode Ray Tube. LCD stands for Liquid Crystal Display. Power Consumpti on CRT consumes more power than LCD. LCD consumes much less power than CRT. Cost CRT is cheaper than LCD. LCD is costlier than CRT. Speed CRT is faster than LCD in response time. LCD is slower than CRT in response time. Size CRT is larger than LCD in size. LCD is smaller than CRT in size. Resolution CRT resolution is quiet lower than LCD. LCD resolution is quiet high than CRT thus have high image quality support. 9
  • 10. This is the part that holds all of the internal components to make up the computer itself. 10
  • 11. The motherboard is the main board that is screwed directly inside the computer case. All other cards and everything else plugs directly into the motherboard, hence its name. 11
  • 12. The CPU is basically like the brain of a computer. It processes all the information on a computational level. 12
  • 13. RAM is a data storage device that can provide fast read and write access. RAM is also volatile, which means that it loses all the stored data when power is lost. 13
  • 14. A hard drive is found in most computers. Its usually a mechanical drive that stores all the data. Apart from storing data, it can also be used as a boot drive to run the operating system from it. 14
  • 15. An SSD is also a type of hard drive, but it doesnt have any moving parts. It consists of a bank of flash memory that can hold a reasonable amount of data. While SSDs are increasing in size all the time, they arent cost-effective for storing large amounts of data. 15
  • 16. A graphics card processes the data from the motherboard and sends the appropriate information to the monitor for it to be displayed. 16
  • 17. A power supply mounts inside the computer case. This converts the AC mains supply from the wall socket and supplies the correct DC voltages to all the components inside the computer. 17
  • 18. LAN card is a piece of hardware which is connected inside the linking the computer network using the MAC address for network to work. 18
  • 19. A modem card is an internal type of modem that is plugged into the PCI slot of a PC motherboard. A modem is a communications device that allows a computer to send and receive data through telephone or cable lines. 19
  • 20. A CD-ROM Drive or optical drive is the device used to read CD ROM disks. CD-ROM drives have speeds ranging from 1x to 72x, meaning it reads the CD roughly 72 times faster than the 1x version. Compact Disc Read-Only Memory, a CD-ROM is an optical disc containing audio or software data whose memory is read-only. As you would imagine, these drives are capable of playing audio CDs and reading data CDs, including CD-R and CD-RW discs. 20
  • 21. 21
  • 22. VGA Cable Also known as D-sub cable, analog video cable Connect one end to: computer monitor, television (PC input port) Connect other end to: VGA port on computer (see image below) 22
  • 23. DVI Cable Connect one end to: computer monitor Connect other end to: DVI port on computer (see image below) 23
  • 24. HDMI Cable Connect one end to: computer monitor, television Connect other end to: HDMI port on computer (see image below) 24
  • 25. PS/2 Cable Connect one end to: PS/2 keyboard, PS/2 mouse Connect other end to: PS/2 ports on computer (see image below) Purple PS/2 port: keyboard Green PS/2 port: mouse 25
  • 26. Ethernet Cable Also known as RJ-45 cable Connect one end to: router, network switch Connect other end to: Ethernet port on computer (see image below) 26
  • 27. Audio Cable Connect one end to: computer speakers, 3.5mm headphones, 3.5mm microphone Connect other end to: audio ports on computer (see image below) Green audio port: computer speakers or headphones Pink audio port: microphone Blue audio port: MP3 player, CD player, DVD player, turntable, electric guitar etc. (line-in port to play and record sounds from the above devices) 27
  • 28. USB Cable For USB computer cable connections, there are two popular formats: USB 2.0 and the newer USB 3.0 Since USB was intended to be the one computer cable connection to replace them all, it's no surprise that the possible uses for a USB port are quite mind-blowing Connect one end to: USB device Storage devices Input devices Output devices Wireless adapters Data (and charging) cable for mobile devices such as mobile phone, tablet, MP3 player Connect other end to: USB ports on computer (see image below) 28
  • 29. 29
  • 30. Computer Power Cord Connect one end to: AC power socket Connect other end to: power supply unit (see image below), computer monitor Note: Always turn off your power supply unit (with the 1-0 switch at the back) before connecting a power cord to it. 30
  • 31. A driver, or device driver, is a set of files that tells a piece of hardware how to function by communicating with a computer's operating system. All pieces of hardware require a driver, from your internal computer components, such as your graphics card, to your external peripherals, like a printer. 31