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Equivalent Series Resistance

In an ideal world capacitors would only exhibit capacitance and inductors would only exhibit inductance. However, in reality both capacitors and resistors are not perfect and exhibit other qualities, including resistance. To account for this in circuits it is useful to consider capacitors and...

Conventional current & electron flow

A week doesn’t go by without someone asking if PHP is dead? They usually ask this question because they have read about another language that they assume will overtake it or they read about a feature in PHP that’s not as good as in another language. My short answer is an emphatic NO. My...

Logical operators

Logical operators follow this format where Operand 1 must be a register and Operand 2 can be a register or a number Instruction <Destination>, <Operand 1>, <Operand 2> 2. :%d Selects and deletes all in Vim 3. AND returns 0 except when both bits are 1 a. @ AND Example .global _start _start:...

Bits, Bytes and Nibbles

Computers use a base-2 counting system. This is different to humans, who use base-10. Base-2 means that there are only 2 different numbers used, 0 and 1. This is different to base-10, which uses 10 different numbers, 0 – 9. We use different names to describe different sizes of memory. The...

Tab vs space

How should programmers indent their code? Tabs or spaces? It’s an old question that will never have everyone in agreement! On the one hand, those in favour of tabs argue that it provides more precision. Equally those in favour of spaces argue that if it was about presicion then woudn’t...

Guide to using Notepad++

Notepad++ is a text editor and source code editor for use with Microsoft Windows. It supports tabbed editing, which allows working with multiple open files in a single window. The project’s name comes from the C increment operator. Notepad++ is distributed as free software. Notepad++ was...

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What is HTTPS?

HTTPS is an acronym for Hypertext Transfer Protocol Secure. It is an extension of the Hypertext Transfer Protocol (HTTP). It is used for secure communication over a computer network, and is widely used on the Internet. In HTTPS, the communication protocol is encrypted using Transport Layer Security...

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