XI IP Chapter 2 Notes

SOFTWARE CONCEPTS

1.       What is a software

-          It is intangible thing that is used to work in computer

2.       Name the Different types of software

-          System Software

o   Operation System

-          Language Preprocessor

o   Assembler

o   Interpreter

o   Compiler

-          Application software

o   Utility Software

3.       What is a operation system

-          Software with handle the three task

o   Process management

o   Input Output Management

o   Memory Management

4.       What are different types of OS

1.       Single User OS

2.       Multi User

3.       Time Sharing

4.       Real time

5.       Multiprocessing

5.       What are Packages

-          Packages are application software to do specific works

-          E.g. office typing

-          E.g. listening to music

-          E.g. Database management

6.       What are the main package category

-          Word Processing Software (packages to handle typing and printing documents) MS WORD

-          SpreadSheets (packages to handle tabular form of data) MS EXCEL

-          Database Management System. (packages to handle huge amount of data) MYSQL

-          Desktop Publishing software. (packages to handle publication works) PhotoShop Picassa

-          Graphic multimedia applications. (packages to handle 2d and 3d media contents.) VLC Media

7.       What are utility software

-          They perform all the housekeeping jobs in the system e.g. antivirus / disk management software.

8.       Name some Utility Software

-          Text Editor

-          Backup Utility

-          Compression Utility –winzip / winrar

-          Disk Defragmenter

-          Antivirus software

9.       What are business software

-          Software used to help business are called business software. E.g. Inventory Management System / Financial Accounting System / Payroll System.

10.   What are development tools

-          The software used to develop other utility and user software are called development tools.

-          Development tools are based on Language Preprocessor

11.   What are the more commonly used development tools.

-          Compilers

-          Interpreters

-          IDE (Integrated Development Environments)

12.   What is an IDE

-          It is a application that consist of different development tools needed for developing and application.

-          E.g. Java IDE – Netbeans

-          E.g. C++ - borland C++

13.   What is the issue of security in computers

-          Computer security is the ability of a system to protect information and system resource with respect to confidentiality and integrity.

14.   What are the basic components of computer security

-          Confidentiality - Secured

-          Integrity – checking of the honesty

-          Authentication – Genuinely

15.   How to achieve the computer security

-          Password

-          OTP  (One Time Password)

-          Hardware Keys

-          Software Keys.

-          Firewall policy

16.   Some common threats with computer security

-          Viruses

o   Worms

o   Trojans

-          Spyware

-          Adware

-          Spamming

-          PC Intrusion

o   Denial of Service (DoS)

o   Sweeping

o   Password Guessing

-          Phishing

17.    What is the difference between Worms and Trojan Hourse

-          Worms are self-replicating

-          Trojan horse appears harmless but actually performs malicious functions such as deleting or damaging files.