// All posts
← homeWhat is QuickSort? When and by whom was it created? How does QuickSort work?
QuickSort is a sorting algorithm that uses the "divide and conquer" strategy. It quickly and efficiently sorts arrays by comparin…
What are ASC and DESC? What is the difference? Examples of use in SQL, JavaScript, and Ruby.
В чому різниця між ASC / DESC What is ASC sorting? ASC (Ascending) sorting is a method of arranging elements in a sequence (for e…
Final stage of installing Ubuntu. Post-installation configuration of Ubuntu.
This note will talk about the standard post-installation setup after installing Ubuntu. By post-installation setup, I mean the wi…
What is Ubuntu Pro? What is the difference between Ubuntu and Ubuntu Pro?
Ubuntu Pro is the commercial version of the operating system Ubuntu, provided by Canonical Ltd., the company that develops and ma…
What is PCIe (Peripheral Component Interconnect Express)?
PCIe (Peripheral Component Interconnect Express) is a bus used for connecting devices to a computer's motherboard. It is a standa…
What is NVMe (Non-Volatile Memory Express)? Where is NVMe used?
NVMe (Non-Volatile Memory Express) is a data transfer protocol specifically designed for use with flash memory-based storage, suc…
What is the difference between SSD and HDD?
SSD (Solid State Drive) is an electronic data storage device that uses flash memory to replace the traditional hard disk drive (H…
What is RST with Optane and RST Premium with Optane, and what is the difference? What are the differences from AHCI?
RST (Rapid Storage Technology) with Optane is a combination of two technologies used in computer systems: RST (Rapid Storage Tech…
How to disable RST on a laptop? Using the Acer Nitro 5 as an example.
When installing Ubuntu on Acer Nitro I saw the following message (which interrupts the installation process.) Disable RSTIntel RS…
What is AHCI (Advanced Host Controller Interface)?
AHCI (Advanced Host Controller Interface) is an interface for data transfer between the operating system and the data storage (su…
What is SATA (Serial Advanced Technology Attachment)?
SATA (Serial Advanced Technology Attachment) mode is one of the operating modes for connecting devices to a computer via the SATA…
How to enter BIOS on Acer Nitro 5 (AN515-54-5304) laptop?
Usually, you need to enter BIOS before installing the operating system to change some settings and allow the computer to boot fro…
What is BIOS and what is it used for?
BIOS (Basic Input/Output System) is the software that resides on the computer's motherboard. It is responsible for initializing a…
What is UEFI? What are the main differences between UEFI and BIOS?
UEFI (Unified Extensible Firmware Interface) is a specification of a software interface that replaces the traditional BIOS in mod…
What is balenaEtcher? How to install Etcher on macOS?
balenaEtcher is a free software product used for creating bootable USB drives or SD cards from operating system images. It allows…
How to install Ubuntu on a laptop instead of Windows? Personal experience with the Acer Nitro 5 (AN515-54-5304) laptop.
```html I got my hands on an Acer Nitro 5 (AN515-54-5304) laptop with Windows 11 Home installed. The legality of the operating sy…
What is RST in SSD disk settings? What is RST needed for?
RST (Rapid Storage Technology) is a technology developed by Intel that provides caching and disk management features on a compute…
What is the difference between 32-bit and 64-bit processor architecture? Why is 64-bit architecture more popular now?
The architecture of the processor determines the bitness of data processing and addresses that the processor can handle. The main…
Where to download the official ISO file (image) of Ubuntu?
Like any software, it should be downloaded from official websites. No one knows which site is official. So people click on the fi…
What is an ISO image? Where are software ISO images used?
An ISO image is a file format that contains an exact copy of a disk or operating system, including all files, folders, and data s…