Explain the concept of an Operating System. Identify features of Windows Operating System family. | Introduction to Windows Session 2 Introduction to Windows/ Session 2/ of 41 Session Objectives Explain the concept of an Operating System Explain the concept of Networking Explain workgroup and domain models Identify features of Windows Operating System family Define some commonly used terminology Explain concept of sharing in Windows Introduction to Windows/ Session 2/ of 41 Introduction to Operating Systems “An operating system is a program that acts as an interface between the user and the computer hardware and controls the execution of all kinds of programs.” THE USER Floppy disk Hard disk Storage Devices Output device Printer / Monitor THE OPERATING SYSTEM MEMORY The Control Unit / The ALU Central Processing Unit Input device Keyboard Introduction to Windows/ Session 2/ of 41 Functions of an Operating System It loads itself into memory. It loads user program into memory. It loads required data into memory. It interprets program instructions. Gives instruction to . | Introduction to Windows Session 2 Introduction to Windows/ Session 2/ of 41 Session Objectives Explain the concept of an Operating System Explain the concept of Networking Explain workgroup and domain models Identify features of Windows Operating System family Define some commonly used terminology Explain concept of sharing in Windows Introduction to Windows/ Session 2/ of 41 Introduction to Operating Systems “An operating system is a program that acts as an interface between the user and the computer hardware and controls the execution of all kinds of programs.” THE USER Floppy disk Hard disk Storage Devices Output device Printer / Monitor THE OPERATING SYSTEM MEMORY The Control Unit / The ALU Central Processing Unit Input device Keyboard Introduction to Windows/ Session 2/ of 41 Functions of an Operating System It loads itself into memory. It loads user program into memory. It loads required data into memory. It interprets program instructions. Gives instruction to display results on screen. It manages resources. Introduction to Windows/ Session 2/ of 41 Single-user system Has a single CPU and one set of I/O devices. Popular example - Microsoft Disk Operating system or MS-DOS. Introduction to Windows/ Session 2/ of 41 Multi-user systems More than one user can work on system Each user could be working on different set of programs and data Central computer acts as server Data and programs stored on server All processing is done by server Computers connected as nodes or workstations function as dumb terminals or intelligent terminals Common multi-user system is UNIX Introduction to Windows/ Session 2/ of 41 Introduction to Networking “A computer network is a data communication network wherein two or more computers and peripheral devices are linked together”. Connection may be permanent (where cables are used) or temporary (through phone lines). Various devices are connected through network interface card (NIC). Introduction to .
