Содержание
- 2. Aims & Objectives Define Ports & Connectors (Serial, Parallel & USB) State reasons for Backing Storage
- 3. Introduction Printers produce paper copies of electronic files. Hard copies of computer documents remain important today.
- 4. Printers As a computer technician, you may be required to purchase, repair, or maintain a printer.
- 5. Printer to Computer Interfaces To access a printer, a computer must have an interface with it.
- 6. Laser Printers A laser printer is a high-quality, fast printer that uses a laser beam to
- 7. Impact Printers Impact printers use a print head impacts a printer tape or inked ribbon to
- 8. Inkjet Printers Use ink-filled cartridges that spray ink onto a page through tiny holes, or nozzles.
- 9. Solid-ink Printers Use solid sticks of ink rather than toner or ink cartridges. The printing process:
- 10. Thermal Printers A thermal printer uses chemically-treated paper that becomes black when heated. A thermal transfer
- 11. Dye-Sublimation Printers Also called thermal dye printers Usually used in producing photo-quality images for graphic printing
- 12. Installation and Configuration of Printers When purchasing a printer, the installation and configuration information is usually
- 13. Types of Scanners Technicians may be required to purchase, repair, or maintain a scanner. The following
- 14. Scanners Scanners typically create an RGB image that can be converted into image formats such as
- 15. All-in-one Scanners An all-in-one device combines the functionality of multiple into one physical piece of hardware
- 16. Flatbed Scanners Often used to scan books and photographs for archiving. Image is acquired by placing
- 17. Handheld Scanners A handheld scanner is small and portable. Pass the scanner head across the surface
- 18. Drum Scanners Drum scanners produce a high-quality scanned image, but they are being replaced by lower
- 19. Installation and Configuration of Scanners An installation media includes drivers, manuals, and diagnostic software will be
- 20. Preventive Maintenance Techniques Printers and scanners have many moving parts that can wear out over time
- 21. Preventive Maintenance Techniques (Continued) Printer Maintenance Printers have many moving parts and require more maintenance than
- 22. Preventive Maintenance Techniques (Continued) Scanner Maintenance The scanner surface should be kept clean. If the glass
- 23. Exercise 1 – Identify Component parts Indentify Component Parts
- 24. What’s Inside? Some of the Component Parts RAM HDD DVDROM AGP Slots CMOS BIOS CPU North
- 25. Functional Skills Links English Preparation for Reading Understanding Expressing yourself clearly Maths Reading and expressing numerical
- 26. Ports & Connectors Not all peripherals need a cable to link them to the port; Some
- 27. Ports & Connectors Cont. If cabling is used, the transfer of data to and from the
- 28. Serial & Parallel Port The serial and parallel ports on the PC are very different, as
- 29. Serial/Parallel Dictionary Activity Using two Dictionaries…
- 30. Serial & Parallel Connectors
- 31. Parallel & USB USB was designed to make the installation of slow peripherals, such as the
- 32. USB Connections
- 33. USB (Cont.) It is also possible to link the devices in a ‘daisy chain’ so that
- 34. USB C USB Type-C is about to be rolled out to a smartphone near you USB
- 35. Daisy chaining devices
- 36. SERIOUS QUESTION!!!?! Why has SATA and USB been adopted over Parallel communications devices such as IDE?
- 37. Output Devices There are many different Output devices but the most commonly used are: Monitors Printers
- 38. Monitors Monitors display the information on a screen. You can get 2 main types of monitors:
- 39. Which Monitor do I need? For anyone who owns a desktop PC, you’re going to need
- 40. Size Let’s begin with size. Depending on exactly what you’ll be using your new monitor for
- 41. Size Cont. Ultimately, you need to consider what you’ll be using your monitor for Perhaps you’re
- 42. Resolution One careful consideration to make, and one which is closely linked to screen size, is
- 43. Refresh Rate Another feature gamers should pay particular attention to is a monitor’s refresh rate which
- 44. Response Time Response time concerns the amount of time (measure in milliseconds) it takes the pixels
- 45. Resolution Cont. As you rise up the ladder of monitor sizes, resolutions will inevitably rise alongside
- 46. Panel Type Gone are the days of CRT and TFT technology LCD panels are pretty much
- 47. Gaming Monitors You many have noticed a lot of talk of response times and refresh rates
- 48. Gaming Monitors For a gamer then, it’s vital to enhancing their gameplay As such, a response
- 49. Connections Your final major consideration revolves around connections and ports HDMI has grown into the most
- 50. Connections DisplayPort connections are becoming increasingly popular, but are generally limited to a computer connection Capable
- 51. Connections Some newer monitors are opting for DVI connection, often alongside HDMI. Again, if this is
- 52. Price As computing technology moves ever forward, components such as monitors will continue to fall in
- 53. Printers There are 3 types of Printers: Dot Matrix : This printer is the oldest of
- 54. Plotters These devices produce high quality lines diagrams on paper. (Architects, Engineers and Scientist often use
- 55. Speakers / Headphones There is usually a small speaker within the computer however to increase the
- 56. Backing storage Primary storage, located within the computer, is relatively small and the majority of it
- 57. Backing Storage
- 58. Portable and fixed drives In the design of early computers, the drives (i.e. The readers) were
- 59. Key terms Primary storage – the memory of the computer Secondary storage – a backing store
- 61. Скачать презентацию