1 / 20

Chapter 4: Hardware for Educators

Chapter 4: Hardware for Educators. Allie Poston, Jessica Foster, Jaime Black, and Tiffany Myers . Objectives. Describe the system unit Define the term bit and describe how a series of bits are used to represent data

monita
Télécharger la présentation

Chapter 4: Hardware for Educators

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 4: Hardware for Educators Allie Poston, Jessica Foster, Jaime Black, and Tiffany Myers

  2. Objectives • Describe the system unit • Define the term bit and describe how a series of bits are used to represent data • Identify the major components of the system unit and explain their functions • Explain how the CPU uses the four steps of a machine cycle to process data • List the characteristics of a keyboard and identify various types of keyboards • Differentiate among the four types of output • Explain differences among various types of printers • Differentiate between storage and memory • Identify types of storage media and devices • Differentiate between CDs and DVDs

  3. System UnitsIt doesn’t matter the size, make, or model all computers and mobile devices have a system unit.

  4. Data RepresentationHow is data represented in a computer? • Binary System • Bits & Bytes • American Standard Code for Information Interchange, ASCII

  5. The Components of the System Unit • The motherboard

  6. The CPUCentral Processing Unit • Processor or Microprocessor • Dual & Multi-Core • Control Unit: Fetching, decoding, executing, storing. • The Arithmetic/Logic Unit, ALU • The System Clock

  7. Memory Memory stores three basic items: Operating system and other system that controls the computer equipment The application software designed to carry out a specific task The data being processed by the application

  8. Memory Expansion Slots and Expansion Cards Removable Memory Devices Port and Connectors

  9. Input- entering memory (4types) • Data-unprocessed • Program-instructions • Command –given • User Responses- questions

  10. What are Input Devices • Keyboard • Pointing Devices • Touchpad • Trackball • Joystick and Wheel • Touch Screen • Optical Scanners • Pen Input • Audio and Video Input • PDAs, smartphones, and media players input

  11. Output • Data that has been processed into a useful form. • Text, Graphics, Audio, and Video

  12. Output devices • Displays- monitors, flat panel, LCD, Plasma • TVs • Printers • Data Projectors • Fax Machines • Whiteboards • Speakers, Headphones, Earphones

  13. Storage Media and Devices

  14. What is Storage? • Refers to the media on which data, information, and instructions are kept, as well as the devices that record and retrieve these items. • Stores data, instructions, and information when they are not being processed.

  15. MEDIA AND DEVICES • Storage medium(media)-(secondary storage) is the physical material on which data, instructions, and information are kept. • Storage devices-the mechanism used to record and retrieve these items to and from a storage medium

  16. Storage Devices • Magnetic disks (p.229) a.k.a. Floppy Disk • Hard Disks (p.230) • Miniature Hard Disks • Portable Hard Disks • Solid State Drives (p.232) • Optical Discs (p.232) • CDs and DVDs (p.232) • CD-ROM, PICTURE CDS, CD-R, CD-RW, DVD, & BR • Miniature Mobile Storage Media (p.237) • Flash Memory Cards, USB Flash Drives, & Smart Cards

  17. Optical Discs –CDs and DVDs • CDs and DVDs are one type of optical disc • Types of CDs: • CD-ROM, CD-R, CD-RW • Types of DVDs: • DVD- ROM, DVD-R, DVD+R, DVD-RW, DVD+RW, DVD+RAM, BD • Primarily stores music, movies, digital photographs, and software programs.

  18. CDs and DVDs • CD-ROM-Compact Disc-read only memory • CD-R-Compact Disc-recordable • CD-RW-Compact Disc-rewritable • DVD-ROM-Digital Video-read only memory • DVD-R-Digital Video-recordable • DVD-RW- Digital Video-rewritable • BD-Blue-ray Disc

  19. Facts about Storage Devices • Magnetic Discs have been replaced by the USB flash drive as the preferred portable storage medium. • Hard disks provide computers with a larger capacity of storage mostly for software programs and files. • Miniature Hard Disks are found in devices such as mp3 players, smart phones, and digital cameras. • Portable Hard Disks are external hard disks and removable hard disks. • Solid State Drives (SSD) have several advantages such as being faster, lasting up to 50 years, consuming less power, and generating less heat.

  20. Miniature Mobile Storage Media • Flash Memory Card-used in digital cameras, smart phones, PDAs, photo printers, handheld gaming consoles and navigation devices and many more. • USB flash drives have replaced floppy discs because they have large storage capacities, easier to carry, and preferred among students and other computer users. • Smart Cards-used in storing health care information, student purchases on campus, or even employee attendance. Also double for an ID

More Related