1 / 18

Computer Basics

Computer Basics . Tianguang Ball State University. Content. Main box Peripherals Software . Computer . Desktop Laptop Server. Personal computer . PC MAC. Server. More?. Main box. Mother board CPU Memory Extensions Drives . Memory . Primary Memory

richard_edik
Download Presentation

Computer Basics

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. Computer Basics Tianguang Ball State University

  2. Content • Main box • Peripherals • Software

  3. Computer • Desktop • Laptop • Server

  4. Personal computer • PC • MAC

  5. Server

  6. More?

  7. Main box • Mother board • CPU • Memory • Extensions • Drives

  8. Memory • Primary Memory • RAM (random access memory): • is the most common memory chip. • will not remain if power goes off. • must move data onto a disk if it is to be saved. • ROM (read-only memory): • information is stored permanently on a chip. • contains startup information and other permanent data. • Secondary Memory • Disks (magnetic and optical disks)

  9. DRAM and Cache • DRAM --Dynamic Random Access memory—mostly in PC and must be constantly refreshed or it will lose the content • SDRAMSynchronous DRAM--is tied to the system clock. • SRAM—Static Random Access Memory—faster and more reliable than DRAM but expensive. Usually used for cache. • Cache is a special high-speed storage mechanism. It can be either a reserved section of main memory or an independent high-speed storage device.

  10. CPU = Control Unit + ALU • The Control Unit coordinates the operation of all the other components. • The ALU performs all arithmetic calculations and logical decisions. • CPU speed is determined by the internal clock of a computer and measured in Megahertz. 2.6GHz, 2.7GHz, 2.8 GHz, 3.2GHz, … • Comparing CPU speeds in different architectures?

  11. Drives • Hard drive • Disk drive • CD drive • Zip • DVD

  12. Flash drives • Portable hard drive

  13. Peripherals • Input • Mouse • Keyboard • microphone • Scanner • Digital camera • Output • Monitor • Printer • Speaker • projector

  14. Computer Software • System software • Application programs • User interfaces • Graphic interface (Win and Mac)

  15. System Software • The operating system controls: • communication with peripherals. • the coordination of concurrent processing. • memory management. • the monitoring of resources and security. • the management of programs and data. • Utility software controls tasks such as: • repairing damaged files. • making it easy for users to copy files from one storage device to another. • translating files so different software can read them. • guarding against viruses.

  16. Application software • Programs that can be used to create different products. • Word, Excel, PowerPoint, ……

  17. Courseware • Educational application programs that can be used directly for teaching and learning to achieve instructional goals.

  18. ?

More Related