Category Archives: Linux

Update and notes .. Developing an SQL database server/client system.

Posted on July 24, 2019 by nigel borrington

Its already been a couple of weeks since my last post, I had hoped to post more often in the last couple of days but putting the fine details for my SQL database project in place has taken a lot … Continue reading →

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New development projects for 2019 – SQL Data-base management, Psion Series 5 second life, Element 14 PiDesktop

Posted on January 26, 2018 by nigel borrington

I have three news Development projects and Study areas that I have been working on in January 2018 as follows: Asus Tinker Board SQL Data base server. Almost all computer based projects including those in the Makers community at some … Continue reading →

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Linux Shell- command history

Posted on May 19, 2016 by nigel borrington

NB : Please note that this post follows on from Linux Shell command tricks The second of the tools available for the command line interface to a Linux shell is command History, Just like Command and file completion this set … Continue reading →

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Linux Shell command tricks – Command completion

Posted on May 17, 2016 by nigel borrington

The power of the command line in Linux Distributions is still very much at the forefront, many admin task can simply be performed much more efficiently this way. This faster command entry speed, for admin tasks is true even by … Continue reading →

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Linux OS and GPIO managment

Posted on May 5, 2016 by nigel borrington

Please note that this post follows on from : GPIO Part 1 :ARM Development boards and their low-level coding Data-sheets This post is part 2 of A Look at how development boards such as the Raspberry PI allow a developer … Continue reading →

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Looking at shells, internal and External commands

Posted on May 3, 2016 by nigel borrington

This Study area follows on from this Post , Using Linux Shells Each of the available command shells in Linux has two primary types of commands, Internal or External. Internal By saying a command is Internal, these commands are fully … Continue reading →

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Using Linux Shells, Command entry and Terminal emulators.

Posted on May 1, 2016 by nigel borrington

Please note that this post follows on from : The Linux Shell Operating systems such as Linux and Microsoft windows owe their current existence to much earlier versions of themselves with ASCII-code Text based command lines as their only interface … Continue reading →

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I/O Addresses and I/O memory

Posted on April 28, 2016 by nigel borrington

Please note that this post follows on from : IRQ’s and Interrupts I/O Addresses and I/O memory relate to bi-directional Communications between (CPU/Computer to devices ) as opposed to IRQ’s/Interrupt’s which are one way (device to CPU/Computer) communications. Communication via … Continue reading →

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Device IRQ’s (interrupt requests) a Definition.

Posted on April 27, 2016 by nigel borrington

Definition of : IRQ (interrupt request) An IRQ (interrupt request) value is an assigned location in memory where the computer can expect a particular device to interrupt it when the device sends the computer signals about its operation. Note that … Continue reading →

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Raspberry Pi GPIO programming

Posted on April 21, 2016 by nigel borrington

GPIO – Starting from the pins up During the last week of study I have spent a lot of time looking at many online references that relate to Coding for GPIO input and output on the Raspberry PI along with … Continue reading →

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