1 / 5

Central Processing Unit

What's a Computer?. Monitor. Central Processing Unit. Disk. Main Memory. mouse. Keyboard. Network. can do very simple tasks VERY FAST. add, write in memory. CPU: (stupid) brain of the computer. Goal: Perform elaborate tasks by putting together many simple tasks. HOW ?.

tucker-lee
Télécharger la présentation

Central Processing Unit

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. What's a Computer? Monitor Central Processing Unit Disk Main Memory mouse Keyboard Network can do very simple tasksVERY FAST add, write in memory... CPU: (stupid) brain of the computer Goal: Perform elaborate tasks by putting together many simple tasks HOW ? 110-A1

  2. Write a program! But A computer only understands instructions written as a series of 0’s and 1’s Could write as such, TIME CONSUMING... MACHINE LANGUAGE BETTER High level language close (but ) to plain English • To solve a specific problem: weather forecast, payroll, word processing, traffic lights... Need a compiler to translate our program into 0’s and 1’s 110-A2

  3. Which language? What we will use BUT You will learn programming VB is not the point A useful skill valid for any language Examples of High level languages: • FORTRAN, LISP… 50’s (scientific) • COBOL… 60’s (business) • BASIC, PASCAL, C… 70’s (multipurpose) • C++ (OOP), VB (Objects + events) …80’s • Java,… 90’s (platform independent) • C#, VB.NET… 2000’s (OOP + event driven) An "easy" and powerful language 110-A3

  4. How to write a program Logical series of tasks Example: Managing a traffic light Check the time How long has it been since the light has changed? No Yes • Clearly specify the problem • Analyze the problem • Find an algorithm to solve the problem Long enough? Change the light • Write the program (use VB). • DOCUMENTATION • Test and Debug (correct mistakes) • Maintain and Update 110-A4

  5. What to Expect? * Programming is FUN DO NOT FALL BEHIND plenty Rewards: • Open doors in • Education: Engineering, Computer Science, Physics, Bio technologies... * and sometimes frustrating • Read the book • Come to class • Get a lot of practice on the computers • And... • Employment: good programmers are still in high demand 110-A5

More Related