Computer Lecture 1

  • 3,096 views
Uploaded on

 

  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
No Downloads

Views

Total Views
3,096
On Slideshare
0
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
141
Comments
0
Likes
1

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. OVERVIEW OF COMPUTER SYSTEMS
    • Parts Of A Computer System.
    • Looking Inside The Machine.
    • Software: Bringing Machine To Life.
  • 2.  
  • 3. PARTS OF A COMPUTER
    • What is a computer
    • Hardware
    • Software
    • Data
    • Users
  • 4.  
  • 5. WHAT IS A COMPUTER
    • A computer is an electronic device used to process data.
    • A computer can convert data into information that is useful to people.
    • A complete computer system includes four distinct parts:
      • Hardware
      • Software
      • Data
      • User
  • 6. HARDWARE
    • A computer's hardware consists of electronic devices; the parts you can see and touch.
    • The term "device" refers to any piece of hardware used by the computer, such as a keyboard, monitor, modem, mouse, etc.
  • 7.  
  • 8. SOFTWARE
    • Software – also called programs – consists of organized sets of instructions for controlling the computer.
    • Some programs exist for the computer's use, to help it manage its own tasks and devices.
    • Other programs exist for the user, and enable the computer to perform tasks for you, such as creating documents.
  • 9. DATA
    • Data consists of raw facts, which the computer can manipulate and process into information that is useful to people.
    • Computerized data is digital, meaning that it has been reduced to digits, or numbers. The computer stores and reads all data as numbers.
    • Although computers use data in digital form, they convert data into forms that people can understand, such as text, numerals, sounds, and images.
  • 10.  
  • 11. USERS
    • People are the computer's operators, or users.
    • Some types of computers can operate without much intervention from people, but personal computers are designed specifically for use by people.
  • 12. TYPES OF COMPUTERS
    • Supercomputers
    • Mainframe Computers
    • Minicomputers
    • Microcomputers, or Personal Computers
  • 13. SUPERCOMPUTERS
    • Supercomputers are the most powerful computers. They are used for problems requiring complex calculations.
    • Because of their size and expense, supercomputers are relatively rare.
    • Supercomputers are used by universities, government agencies, and large businesses.
  • 14. Cray T90 Supercomputer
  • 15. MAINFRAME COMPUTERS
    • Mainframe computers can support hundreds or thousands of users, handling massive amounts of input, output, and storage.
    • Mainframe computers are used in large organizations where many users need access to shared data and programs.
    • Mainframes are also used as e-commerce servers, handling transactions over the Internet .
  • 16.  
  • 17. MINI COMPUTERS
    • Minicomputers are smaller than mainframes but larger than microcomputers.
    • Minicomputers usually have multiple terminals.
    • Minicomputers may be used as network servers and Internet servers.
  • 18. Minicomputer
  • 19. MICROCOMPUTERS
    • Microcomputers are more commonly known as personal computers. The term "PC" is applied to IBM-PCs or compatible computers.
    • Full-size desktop computers are the most common type of PC.
    • Notebook (laptop) computers are used by people who need the power of a desktop system, but also portability.
    • Handheld PCs (such as PDAs) lack the power of a desktop or notebook PC, but offer features for users who need limited functions and small size.
  • 20. Handheld PC Philips Velo