Btech C Program Lab Notes
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C Programming & Data Structures
UNIT-1
Introduction to Computers:
A computer system consists of hardware and software. Computer hardware is the collection of physical elements that comprise a computer system. Computer software is a collection of computer programs and related data that provides the instructions for a computer what to do and how to do it. Software refers to one or more computer programs and data held in the storage of the computer for some purposes. Basically computer software is of three main types 1. Operating System The Operating System (OS) is an interface between the compute software and hardware. The most popular and latest operating systems include Windows XP, Mac, UNIX, Linux, Windows Vista, etc. 2. Application Software The application software is widely used for accomplishment of specific and precise tasks which is a step ahead than the basic operations or running of the computer system. The application software includes printing documents, and permitting access to internet for web and video conferencing activities. The Application software indirectly does the interaction with the machine to perform all these functions. 3. System Software System software directly interacts with computer hardware. Some of the examples are the device drivers for CPU, Motherboard, Mouse, Printer, Keyboard, etc. The system software takes the responsibility of control, integration and managing individual hardware machine of the computer.
Computing Environment:
Computing Environment is a collection of computers / machines, software, and networks that support the processing and exchange of electronic information meant to support various types of computing solutions.
Types of Computing Environments:
Personal Computing Environment Client Server Environment Time sharing Environment Distributed Environment
1 www.jntuworld.com
www.jntuworld.com
www.jwjobs.net
C Programming & Data Structures
www.jwjobs.net
C Programming & Data Structures
UNIT-1
Introduction to Computers:
A computer system consists of hardware and software. Computer hardware is the collection of physical elements that comprise a computer system. Computer software is a collection of computer programs and related data that provides the instructions for a computer what to do and how to do it. Software refers to one or more computer programs and data held in the storage of the computer for some purposes. Basically computer software is of three main types 1. Operating System The Operating System (OS) is an interface between the compute software and hardware. The most popular and latest operating systems include Windows XP, Mac, UNIX, Linux, Windows Vista, etc. 2. Application Software The application software is widely used for accomplishment of specific and precise tasks which is a step ahead than the basic operations or running of the computer system. The application software includes printing documents, and permitting access to internet for web and video conferencing activities. The Application software indirectly does the interaction with the machine to perform all these functions. 3. System Software System software directly interacts with computer hardware. Some of the examples are the device drivers for CPU, Motherboard, Mouse, Printer, Keyboard, etc. The system software takes the responsibility of control, integration and managing individual hardware machine of the computer.
Computing Environment:
Computing Environment is a collection of computers / machines, software, and networks that support the processing and exchange of electronic information meant to support various types of computing solutions.
Types of Computing Environments:
Personal Computing Environment Client Server Environment Time sharing Environment Distributed Environment
1 www.jntuworld.com
www.jntuworld.com
www.jwjobs.net
C Programming & Data Structures