1 to 7 lectures 11es

14
Lectures # 01 to 07 Subject: Computer Programming Batch: 11ES Subject Teacher: Engr. Sammer Zai Computer Programming: (Oft en shortened to pr ogramming or cod ing) is the pr ocess of wr it ing, test ing, debugging/troubleshooting, and maintaining the source code of computer programs. This source code is written in a programming language. The code may be a modification of an existing source or something completely new. The purpose of programming is to create a  program that exhibits a certain desired behavior (customization). The process of writing source codes requires expertise in many different subjects, including knowledge of the application domain, specialized algorithms, and formal logic. Software: Computer software is a general term used to describe a collection of computer  programs, procedures and documentation that perform some task on a computer system. Software is an ordered sequence of instructions for changing the state of the computer hardware in a particular sequence. It is usually written in high-level  programming languages that are easier and more efficient for humans to use (closer to natural language) than machine language. The term "software" was first used in this sense by John W. Tukey in 1958. In computer science and software engineering, computer software is all computer  programs. Types of Software: Practical computer systems divide software systems into three major classes: system software, programming software and application software 1. System Software helps run the computer hardware and computer system. It includes operating systems, device drivers, diagnostic tools, servers, windowing systems, utilities and more. The purpose of systems software is to insulate the applications programmer as muc h as pos sible fro m the details of the par ti cular comput er complex bei ng use d, especi all y memory and other har dwar e fea tures, and suc h as acc ess ory device s as communications, printers, readers, displays, keyboards, etc.There are 3 basics type of system software:

Upload: ibrahim-ayaz

Post on 09-Apr-2018

220 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: 1 to 7 lectures 11ES

8/7/2019 1 to 7 lectures 11ES

http://slidepdf.com/reader/full/1-to-7-lectures-11es 1/14

Page 2: 1 to 7 lectures 11ES

8/7/2019 1 to 7 lectures 11ES

http://slidepdf.com/reader/full/1-to-7-lectures-11es 2/14

Page 4: 1 to 7 lectures 11ES

8/7/2019 1 to 7 lectures 11ES

http://slidepdf.com/reader/full/1-to-7-lectures-11es 4/14

Page 5: 1 to 7 lectures 11ES

8/7/2019 1 to 7 lectures 11ES

http://slidepdf.com/reader/full/1-to-7-lectures-11es 5/14

Page 6: 1 to 7 lectures 11ES

8/7/2019 1 to 7 lectures 11ES

http://slidepdf.com/reader/full/1-to-7-lectures-11es 6/14

Page 7: 1 to 7 lectures 11ES

8/7/2019 1 to 7 lectures 11ES

http://slidepdf.com/reader/full/1-to-7-lectures-11es 7/14

Page 8: 1 to 7 lectures 11ES

8/7/2019 1 to 7 lectures 11ES

http://slidepdf.com/reader/full/1-to-7-lectures-11es 8/14

Page 10: 1 to 7 lectures 11ES

8/7/2019 1 to 7 lectures 11ES

http://slidepdf.com/reader/full/1-to-7-lectures-11es 10/14

Page 11: 1 to 7 lectures 11ES

8/7/2019 1 to 7 lectures 11ES

http://slidepdf.com/reader/full/1-to-7-lectures-11es 11/14

Page 13: 1 to 7 lectures 11ES

8/7/2019 1 to 7 lectures 11ES

http://slidepdf.com/reader/full/1-to-7-lectures-11es 13/14

Page 14: 1 to 7 lectures 11ES

8/7/2019 1 to 7 lectures 11ES

http://slidepdf.com/reader/full/1-to-7-lectures-11es 14/14