1 / 15

Lesson 1

Lesson 1. Computer Technology. Changes in Computers over the Past 50 years. Computers are SMALLER From room size to pocket size Computers are FASTER Billions of cycles per second Computers are LESS EXPENSIVE Price goes down as technology becomes more available. Trends for the Future.

armen
Download Presentation

Lesson 1

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. Lesson 1 Computer Technology

  2. Changes in Computers over the Past 50 years • Computers are SMALLER • From room size to pocket size • Computers are FASTER • Billions of cycles per second • Computers are LESS EXPENSIVE • Price goes down as technology becomes more available

  3. Trends for the Future • Computers will continue to get smaller and faster. • Even more people will have access to computers. • Voice recognition will get better and be used more widely. • Security for computers will be an increasing problem. • The internet will grow even larger.

  4. What trends do you see for the future?

  5. Speed • Measured in Hertz • Megahertz (MHz) millions of cycles per second • Gigahertz (GHz) billions of cycles per second

  6. SizeMeasuring Storage and Memory • Bytes • Kilobyte* One Thousand Bytes • Megabyte* One Million Bytes • Gigabyte* One Billion Bytes • Terabyte* One Trillion Bytes *approximately

  7. Internal Storage / Memory • RAM • Random Access Memory • Internal Temporary Storage for Current Application in use • ROM • Read Only Memory • Cannot be altered • External storage • CD & DVD software

  8. Computers for: Home and Personal Use Business and Government Use Mini Mainframe Super computer • Palm • Laptop • Desktop

  9. Also called: Handheld PDA Cost: $100 - $500 Palm

  10. Portable Cost $1,000 - $3,000 Laptop or Notebook

  11. Also Called Micro Computer PC Cost: $500 - $1,500 Desktop

  12. Sometimes used as a server for a small – medium sized network. Cost: $10,000 and up Mini Computer

  13. Used as a server for medium to large businesses or organizations. Cost: $100,000 and up Mainframe

  14. Largest, most powerful computers used today NASA Large Universities Government Cost: $ Millions Super Computer

More Related