Computer Notes for Class 9
SIR AHTISHAM ALI SHAH ahtii@msn.com CELL: 0333 – 3102680 ahti_shah@hotmail.com computer Chapter INTRODUCTION TO COMPUTER IX One Q - 1) Define the term computer? or Define computer? Ans: Computer is an electronic and automatic device that accepts data and instruction (In form of program) as Input and process it and produces the results or information as Output. It has also capability to plug and play different devices. Q - 2) Define Hardware and Software? Hardware: The physical and tangible components forming a computer are called “Hardware”. It includes not only the computer system but also cables, connectors, power supply units and peripherals such as Keyboard, Mouse, Audio Speaker, Printer etc. Software:
The software refers to the program that instructs the computer what to do. Or The term Software refers to non – physical elements of a computer system. Software makes the hardware usable. Such as Ms. Office, Corel Draw, Oracle etc. Q - 3) Define a programming language and state its type: Ans: Programming language:
A set of rules that provides a way of telling a computer what operations to perform, is called programming language. It is classified into three types machine language, assembly language and high level language. Q - 4) Define a programming language and state its type briefly: Ans: Programming language: A set of rules that provides a way of telling a computer what operations is to perform, is called Programming language. It is categorized into three types as under. Machine language: (Low Level Language) Computer has its own unique machine language to perform specific tasks. It is based on binary codes 0s and 1s to execute given instructions. All instructions in machine language consists of series of 0s and 1s. It is very difficult to write program in machine language. Assembly language: (Low Level Language) Each computer has its own unique assembly language. In this language the statements are written in symbolic code (Mnemonics) that are
The software refers to the program that instructs the computer what to do. Or The term Software refers to non – physical elements of a computer system. Software makes the hardware usable. Such as Ms. Office, Corel Draw, Oracle etc. Q - 3) Define a programming language and state its type: Ans: Programming language:
A set of rules that provides a way of telling a computer what operations to perform, is called programming language. It is classified into three types machine language, assembly language and high level language. Q - 4) Define a programming language and state its type briefly: Ans: Programming language: A set of rules that provides a way of telling a computer what operations is to perform, is called Programming language. It is categorized into three types as under. Machine language: (Low Level Language) Computer has its own unique machine language to perform specific tasks. It is based on binary codes 0s and 1s to execute given instructions. All instructions in machine language consists of series of 0s and 1s. It is very difficult to write program in machine language. Assembly language: (Low Level Language) Each computer has its own unique assembly language. In this language the statements are written in symbolic code (Mnemonics) that are