FEATURES OF UNIX

Posted by Amrita Gautam at May 15, 2021

There are several features of UNIX that have made it very popular. The main features of UNIX are as fellows: Multi-User UNIX is a Multi-user operating system which allows concurrent access to Host machine by multiple users working different terminals. In UNIX operating system, UNIX server allows multiple users to have access to the UNIX […]

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ARCHITECTURE OF UNIX

Posted by Amrita Gautam at

UNIX follows Layered architecture as shown in figure below. It consists of four main layers called: Hardware, shall and Utilities. HARDWARE  It Consist with all physical components of computer system and hardware modules of the system visible with naked eyes such as:monitor, CPU, RAM etc. KERNEL  The kernel of UNIX is the hub of the […]

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HISTORY OF UNIX

Posted by Amrita Gautam at

The origin of UNIX dates back to 1965, when a joint venture was signed by bell laboratories, General Electric company and MIT (Massachusetts Institute of Technology). The aim of this joint venture was to develop an operating system which had  Capability to serve large community  Capability to provide sharing of data among users working on […]

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Threads

Posted by Anisha Jaiswar at May 14, 2021

Multithreading Model There are two types of threads 1.User threads      2. Kernel threads  Kernel threads are supported and managed directly by the operating system. User threads are above the kernel and the managed without kernel support. There are three common ways of establishing relationship between user threads and kernel threads. Many-to-one model One-to-one model Many-to-many […]

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INTRODUCTION TO DATABASES

Posted by Supriya Khattar at May 2, 2021

THE VALUE OF DATA AND DATABASES Many of the actions you make during the day become data for organisations to use for there own profit and learning.Using an automated teller machine, filling out a form for a driver’s licence, orderings book on the internet, booking a flight on an airline – all become digitised data […]

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Overview of UNIX

Posted by Amrita Gautam at

INTRODUCTION An operating system is the software that manages all the resources of computer and provides a convenient and safe environment for running programs . Though , there are various operating systems available in the market today like DOS , Windows , UNIX , Linux etc.Amongst these UNIX operating system had arrived in the computer […]

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Acid And Base

Posted by Anjum Shekh at May 1, 2021

Acid:- The Term Acid derived from word acid means sour test acid have following features. They term sour test They term blue litmus to red They React with base to from salt H2o Ex: – HCL+NaOH ⇄ H2o+Nacl They Reaction with active mattle to involve Hydrogen gas 2Na+2Hcl ⇄ 2Nacl+H2 ↑ Basis:- The term base […]

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Functions of operating system

Posted by Anisha Jaiswar at

The operating system controls and coordinates the use of hardware among various application programs for various users . Various functions of operating system are Resource utilization Resource allocation Process control and management File management Communication Information maintenance Device management Basic Terms Associated With Operating System Kernel Kernel is defined as a program running at all […]

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Mathematics fun Problems

Posted by admin at December 30, 2020

If 1=3 2=3 3=5 4=4 5=4 Then, 6=? What is the number of the parking space covered by the car? Replace the question mark in the above problem with the appropriate number. Which number is equivalent to 3^(4)÷3^(2) There are 49 dogs signed up for a dog show. There are 36 more small dogs than […]

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Euler’s Riddle (Eggs Problem)

Posted by admin at December 15, 2020

Euler’s riddle: Two traders went to a market to sell eggs. Each of them had her own eggs and they had 100 eggs altogether. After selling all their eggs they earned the same amount of money. One of them says to the other: If I had as many eggs as you had, I would have earned […]

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