Guess Paper 9th Class Computer
2024 and Guess Paper 9th Class 2024 and Guess Paper Short Question 9th
Class Computer and 9th Class Important MCQs and 9th Class
Important Short Question and Class 9th Important Long Question for
students in final exams.
Guess Paper 9th Class 2024 Computer Science |
Guess Paper 9th Class Computer Science 2024 in Punjab Board of Lahore.
COMPUTER SCIENCE 9TH
Problem Solving
Short Introduction
Problem
solving is the process of solving complex problems. This unit introduces the
methodologies to understand a problem and solve it in an effective manner.
Student’s
Learning Outcomes
- Problem Solving Steps
- Define a problem
- Understanding a problem
- Planning a solution
- Defining candid solutions
- Selecting the best solution
- Flowcharts
- Defining a flowchart
- Explaining the importance of a flowchart for problem solving
- Determining the requirements for a flowchart
- Using flowchart symbols
- Drawing flowcharts for sample problems
- Algorithm
- Defining an algorithm
- Describing role of algorithm in problem solving
- Formulating an algorithm
- Writing algorithms for sample problems
- Understanding efficiency of algorithms
- Differentiating between algorithms and flowcharts
- Test data
- Understanding the concept of test data
- Describing importance of testing
- Understanding types of test cases
- Verification and validation
- Understanding the concept of Verification
- Understanding the concept of validation
- Identification and correction of errors
- Using trace table for testing
- Using invalid test data for testing
Binary System
Short introduction
A computer
understands the language of 1s and 0s only, called machine language. The number
systems that only contains 1s and 0s is called binary number systems. The usage
of a computer includes internet surfing, playing games, watching movies, making
documents etc. How are such activities converted to 1s and 0s? This is
discussed in this unit with respect to binary conversation and storage of
binary values in computer memory.
Networks
Short Introduction
In this
unit, the fundamentals of computer networks and data communication are
discussed. We can understand the basic components of a computer networks along
with geographical arrangements of devices in a networks. Communication model
over the Internet is also discussed.
Data and Privacy
Short Introduction
Data
transfer is discussed in previous unit but this discusses “secure data transfer”.
Data is converted to unreadable format before sending and again it is converted
back to readable format when it reaches its destination. This unit discusses
such type of conversions to secure the transferring of data. A computer is
accessible to others if it is connected to a network. In this unit, security
measures are discussed for sending sensitive data over a network.
Designing Website
Short Introduction
Internet surfing is part of almost everyone’s life and we use if for online shopping, social networking, checking results, sending/receiving emails etc. In this unit, the techniques to develop a simple website are discussed.
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