Service Oriented Computing
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August 31, 2023
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Service orientation is the core reference model for cloud computing systems. This approach adopts the concept of services as the main...
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Virtualization Techniques
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August 30, 2023
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From a purely academic standpoint, virtualization is little more than a layer of abstraction between two other layers . What do we mean...
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Basics of Distributed Systems
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August 30, 2023
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Utilizing massively distributed computer facilities to rent out computing services is not a new concept. It dates back to the early 195...
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Web 2.0
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August 30, 2023
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The major interface used by cloud computing to deliver services is the Web. Currently, the Web includes a variety of tools an...
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Input / Output Devices
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August 22, 2023
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Controlling all of the computer's I/O (Input/Output) devices is one of the primary responsibilities of an operating system. It must s...
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Zombie Process using C Programming Language
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August 21, 2023
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A zombie process is one that has completed execution but still has an entry in the process table to report to its parent process. A ch...
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Swapping in Memory management
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August 18, 2023
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With timesharing systems or graphically oriented personal computers, sometimes there is not enough main memory to hold all the currently...
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Input/Output Devices in Operating System
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August 17, 2023
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Different people look at I/O hardware in different ways. Electrical engineers look at it in terms of chips, wires, power supplies, motors...
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File System Implementation and Memory Allocation
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August 16, 2023
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The main challenge in implementing file storage is remembering which disk blocks correspond to which file. Different operating systems ...
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File System Layout in Operating System
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August 15, 2023
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File systems are stored on disks. Most disks can be divided up into one or more partitions, with independent file systems on each partiti...
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Introduction to Shell
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August 14, 2023
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Computers understand the language of 0's and 1's called binary language, In the early days of computing, instructions are provid...
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Secure Shell (ssh) command in Unix and Linux
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August 09, 2023
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The ssh command in Linux is used to establish a secure shell (SSH) connection to a remote server or device. It allows you to log in t...
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Secure Copy (scp) command in Linux and Unix
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August 09, 2023
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The scp (secure copy) command is used in Linux and Unix-like operating systems to securely transfer files and directories between a l...
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Tree Data Structures
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August 09, 2023
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A tree is a fundamental data structure in computer science that organizes elements hierarchically. It consists of nodes connected by...
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Basics of grep command in Unix
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August 09, 2023
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The `grep` is a powerful command-line tool used for searching and matching patterns in text files. It stands for "Global Regular E...
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Routing Related Commands in Linux
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August 04, 2023
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The Ethernets of the Virtual Brewery and the Virtual Winery are linked through such a gateway, namely the host vlager. Assuming tha...
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IP Addresses and Interfaces in Networking (hostname, dhcpd, ifconfig, ping)
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August 04, 2023
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ifconfig command The ifconfig in short “interface configuration” utility for system/network administration in Unix/Linux operating ...
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