OpenGenus IQ: Learn Algorithms, DL, System Design (Page 65)

Managing packages with yum/dnf in RHEL

Package management involves managing software on a system. This includes installing, upgrading, downgrading, updating, removing, etc. We discuss package management in Red Hat Enterprise Linux Distros using yum and dnf.

Python

Factory Pattern in Python

In this article, we have explained the idea of Factory Pattern in Python with a complete Python implementation example.

Linux

Managing Debian packages with dpkg

In Linux software is considered a package and is distributed using remote repositories. As end-users, to access it we use package managers. We discuss the dpkg package manager for Debian-based Linux distros.

Linux

Managing Debian packages with apt

apt(Advanced Package Tool) is a package management tool. It is used to install, configure, search for, update and remove software in a Debian based Linux system.

Linux

Bash until loop

Loops are an important aspect in any programming language. In this article we look at the until loop that is used for looping in shell scripts.

Machine Learning (ML)

Similarity Search on Big Vector Data

In this article, we have explored Similarity Search on Big Vector Data along with Nearest Neighbor Search (NNS) or Approximate Nearest Neighbor Search (ANNS).

Operating System

Secure boot

Secure boot is a security standard implemented in the advanced UEFI to prevent malware from attacking the computer during boot up when the computer is most vulnerable.

Interview Problems on Array

MEX (minimum excluded) of a sequence (with updates)

In this article, we have explored approaches to find the MEX (minimum excluded) of a sequence (with updates) efficiently with pre-computation.

Computer Architecture

UEFI and Legacy boot

Both UEFI and BIOS are firmware that specify an interface between the computer operating system and the underlying firmware. Legacy boot involves booting the computer using legacy firmware such as BIOS and UEFI boot involves booting a computer using the more advanced UEFI.

Computer Architecture

UEFI (Unified Extensible Firmware Interface)

UEFI(Unified Extensible Firmware Interface) is the interface between the operating system and the low-level initialization firmware. It initializes hardware components and is responsible for executing the OS stored in a boot device.

Algorithms

Find elements that appear more than N/3 times

In this article, we have solved the problem of finding elements that appear more than N/3 times. This involve ideas of Hash Map and Boyer Moore algorithm.

System Design

AWS Redshift in System Design

In this article, We will take a look at AWS Redshift and understand it using a real-time example.

System Design

MemCached in System Design

In this article, we have explored the idea of MemCached in System Design and how it is used in different systems.

System Design

Google Cloud BigQuery in System Design

Google BigQuery is a fully managed enterprise data warehouse that is serverless, highly scalable, and cost-effective for analyzing petabytes of data and billions of rows using ANSI SQL.

Computer Architecture

Types of memory devices

In this article, we have covered the different types of memory devices like CD-ROM, SD card and much more.

Computer Architecture

Firmware

In this article we discuss firmware - software that is directly programmed into hardware devices such as routers, cameras, network cards etc.

Computer Architecture

BIOS (Basic Input Output System)

We discuss BIOS - firmware stored in non-volatile memory e.g EPROM, responsible for startup procedures such as POST before passing control to the bootloader which loads the OS.

Linux

Types of Boot loaders

A boot-loader is responsible for loading the operating system to the Linux kernel and the Linux initial RAM disk. In this article we discuss different boot loaders for the Linux operating system.

Linux

GRUB bootloader

GRUB is one of the many Linux boot loaders responsible for loading an operating system into memory during startup. In this article we discuss the booting process involving GRUB and how to configure and customize GRUB.

Linux

Run levels in Linux

Run levels are modes of operation for computer operating systems. We discuss the different run levels in the Linux OS and demonstrate how to change the default run level.

Linux

Systemd Components

Systemd is a suite of utilities that provide an array of system components for the Linux OS. We look at various components within systemd.

Linux

Unit files in Linux

A unit file is responsible for specifying how systemd starts and runs. In this article, we discuss unit files, the contents of these files, service and target unit and unit files and how to create and edit unit files.

Linux

Systemctl and Systemd in Linux

The systemctl command is a systemd utility used to manage services, get information about service unit files and service states and therefore a useful utility to know for managing services on the server while systemd is an array of components for Linux OS.

Compiler Design

Data-flow analysis in Compiler Design

All optimizations in a compiler depend on data-flow analysis. We discuss three instances of data-flow problems, reaching definitions, live variables and available expressions.

Algorithms

Max path sum between two nodes in Binary Tree

In this article, we have explored algorithms to find the Max path sum between two nodes in Binary Tree along with time and space complexity.