In previous article, we have discussed the basics of interrupt. In order to be able to trigger an interrupt, the hardware connected to the main processor (CPU) must be interrupt-capable, i.e. generate an output signal (electrical voltage at an output pin) via the so-called interrupt line when a certain event occurs. The CPU generally has separate pins for maskable (disabled) interrupts (INTR) and … [Read more...]
Computer and Internet
Computer and Internet is catchall section of core computing categories including Cloud Computing, Digital Photography, Virtualization, Networking, Protocols and Others' which are not otherwise more subcategorized. Here also you will get unique articles and news on computer hardware, Software, Networking and Protocols.
What is Interrupt?
In computer science, an interrupt is a short-term interruption of the normal execution of a program, in order to process a usually short, but time-critical, process. The triggering event is called an interrupt request (IRQ). After this request, the processor executes an interrupt handler, interrupt service routine, or ISR. The interrupt routine is executed with extended privileges (on appropriate … [Read more...]
Reasons Your Photographs Are Blurry And How to Fix Them
Capturing a crisp and clear photograph is the goal of every photographer, whether amateur or professional. However, achieving sharpness in images can sometimes be a challenge, as various factors can contribute to blurriness. Understanding the common reasons behind blurry photos and learning how to address them can significantly improve the quality of your photography. In this article, we'll … [Read more...]
Advantages of PHP (Over Other Web Programming Languages)
Choosing the right programming language is crucial for building dynamic, interactive, and scalable web applications. While numerous programming languages exist for web development, PHP stands out as a popular and versatile choice. In previous article, we discussed why PHP is still popular and the shortcomings. In this article, we explore the advantages of PHP over other web programming languages, … [Read more...]
What is Public Key Infrastructure (PKI)
In cryptology, public key infrastructure (PKI) is a system that can issue, distribute, and verify digital certificates. The certificates issued within a PKI are used to secure computer-aided communication. With the help of an asymmetric cryptosystem, messages on a network can be digitally signed and encrypted. Secure cryptosystems cannot be broken in a reasonable period of time, at least according … [Read more...]
Tips and Tricks for Finding Family Portrait Locations
Family portraits serve as timeless treasures, capturing cherished moments and creating lasting memories. One of the critical decisions in creating stunning family portraits is selecting the perfect location. The backdrop sets the tone, enhances the aesthetic appeal, and reflects the personality of your family. This article will help you finding family portrait locations that complement your style, … [Read more...]
Basics of Web Application Firewall
A Web Application Firewall (WAF) is a method designed to protect web applications from Hypertext Transfer Protocol (HTTP) attacks. It is therefore a special case of an Application Layer Firewall (ALF) or an Application Layer Gateway (ALG). Compared to traditional firewalls and intrusion detection systems (IDS), a WAF examines communication at the application level. This usually does not require … [Read more...]
Importance of Encrypting Backup Files with GnuPG
In an era where data breaches and cyber threats are prevalent, safeguarding sensitive information is paramount. One effective method to protect data integrity and confidentiality is through encryption. Encrypting backup files adds an additional layer of security, ensuring that even if unauthorized access occurs, the data remains unreadable. Among the various encryption tools available, GnuPG (GNU … [Read more...]
Comparison of Usenet With Forums & Mailing Lists
The Usenet, originally Unix User Network is a global electronic network that represents its own independent service on the Internet alongside the World Wide Web. It was created in 1979, long before the World Wide Web. It provides all kinds of professional discussion forums in pure text form, the newsgroups, in which basically anyone can participate. The participant usually uses a news reader for … [Read more...]
CircuitPython vs. Arduino’s C++ Language for ESP32: A Comparative Analysis
After we published the article, Live Reloading of Arduino Code in ESP32, a reader questioned the difference with CircuitPython. Instead of a direct comparison of Toit and CircuitPython, in this article, we will compare with Arduino's official language. In the world of embedded systems and microcontroller programming, CircuitPython (offered by Adafruit) and Arduino's C++ language (offered by … [Read more...]
Protection and Countermeasures Against Ransomware
In our previously published article, we have discussed how ransomware attacks have become increasingly prevalent and damaging in recent years, posing significant threats to individuals, businesses, and organizations worldwide. These malicious attacks encrypt valuable data and demand ransom payments for decryption keys, causing financial losses, operational disruptions, and reputational damage. … [Read more...]