Category: Science and Technology

A2Z 2019 – Day 26 : ‘Z’ – Zero Day Exploit

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On the last day of the A2Z Challenge 2019, I am going to talk about the Zero Day Exploit. A zero-day exploit is a cyber attack that occurs on the same day a vulnerability is discovered in software. A vulnerability is an unintended flaw in a computer system that can leave it open to attack. …

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A2Z 2019 – Day 25 : ‘Y’ – Y2K Bug

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It’s the penultimate day of the A2Z Challenge 2019. In my last post, I forgot to mention that it was my 100th post. During keyword selection, I couldn’t work out the keywords for X, Y and Z. I started my journey by selecting 23 out of 26 keywords. In my 4 years of Engineering, I …

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A2Z 2019 – Day 24 : ‘X’ – x86 and x64

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Selecting the keyword for day 24 of the A2Z Challenge 2019 was a bit challenging. In computer science, we have very few terms or keywords that start with ‘X’. All of them are ‘hi-tech’. So, after a lot of research and analysis, I selected ‘x86’ and ‘x64’. In this post, I am going to talk …

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A2Z 2019 – Day 23 : ‘W’ – World Wide Web

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On the 23rd day of the A2Z Challenge 2019, I shall talk about the A2Z of World Wide Web. When we think of WWW (World Wide Web) we often think only of the Internet. Internet and Web isn’t the same thing, the Web is just a part of the Internet. It is one of the …

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A2Z 2019 – Day 22 : ‘V’ – Virtual Reality

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On the 22nd day of the A2Z Challenge 2019, I shall talk about the A2Z of Virtual Reality. Imagine that you want to visit Switzerland to spend your summer vacation or how about a trip to the Moon? Sounds exciting, isn’t it? But, if I tell you that you can do both simply by sitting …

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A2Z 2019 – Day 21 : ‘U’ – USB

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On the 21st day of the A2Z Challenge 2019, I shall talk about A2Z of USB (Universal Serial Bus).  It is a common interface that connects peripheral devices such as keyboards, mice, printers, scanners, media devices, digital cameras, flash drives, and external hard drives. In simple terms, it’s a newer version of a port that …

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A2Z 2019 – Day 20 : ‘T’ – Telecommunication

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On the 20th day of A2Z Challenge 2019, I shall talk about the A2Z of Telecommunication. Telecommunication is the process of exchanging information between two communicating participants with the help of telecommunication devices. Telecommunications devices include telephones, radio, fibre, satellites and the Internet. Today’s post is an extension of my earlier post on networking. In …

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A2Z 2019 – Day 19 : ‘S’ – Software

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On the first day of the 4th week of the A2Z Challenge 2019, I shall talk about the A2Z of Software. Software is a set of programs that are used to operate computers. Softwares are intangible and are not tangible like computer hardware. They are lines of codes written by computer programmers that have been …

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A2Z 2019 – Day 18 : ‘R’ – RAM and ROM

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On the 18th day of A2Z Challenge 2019, I shall about A2Z of RAM (Random Access Memory) and ROM (Read Only Memory). In the world of computers, there are two kinds of primary memory (main memory) – RAM and ROM. RAM stores data as long as the computer is switched on. Once you switch off …

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A2Z 2019 – Day 17 : ‘Q’ – QR code

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On the 17th day of the A2Z Challenge 2019, I shall about the A2Z of QR code. QR stands for Quick Response. A QR code is a two-dimensional barcode. It consists of black squares arranged in a square grid on a white background. QR contains information about the item to which it is attached. QR …

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