GE6263 COMPUTER PROGRAMMING Lab Manual
Anna University Regulation 2013 Electrical and Electronics Engineering (EEE) GE6263 CP LAB Manual for all experiments is provided below. Download link for EEE 2nd SEM GE6263 COMPUTER PROGRAMMING Lab Manual is listed down for students to make perfect utilization and score maximum marks with our study materials.
Anna University Regulation 2013 Electrical and Electronics Engineering (EEE) 2nd SEM GE6263 CP LAB-COMPUTER PROGRAMMING Lab Manual
Ex.NO:1.1 STUDY OF UNIX OS
INTRODUCTION
An operating system is software that acts as an interface between the user and the computer hardware. It is considered as the brain of the computer. It controls and co-ordinates the internal activities of the computer and provides user interface.
The computer system is built with the following general components
Hardware
Application Software
Operating System
(i) Hardware: This includes the physical components such as CPU, Keyboard, Hard disk and Printer.
(ii) Application Software: These are the programs that are used to accomplish specific tasks.
(iii)Operating System: It is the component or the set of programs to manage and control the hardware as well as co-ordinate the applications. Each system must have at least have the hardware and the OS.
Functions of an Operating System.
Command interpretation: The CPU can‟t understand the commands keyed in by a user. It is the function of the OS to make it understand.
Peripheral Interfaces: The OS also has to take care of the devices attached to the system. The OS oversees communication between these devices and the CPU.
Memory management: The OS handles the extremely important job of allocating memory for various processes running on the system.
Process management: This is required if several programs must run concurrently. CPU time would then have to be rationed out by the OS to ensure that no programs get more than its fair share of the processor time.
Services of an OS:
1. Process Management
2. File Management
3. I/O Management
4. Scheduling
5. Security Management
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