Tag Archives: computer fundamentals

Using Linux Shells, Command entry and Terminal emulators.

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

Posted in computer fundamentals, Linux, Operating system installation, Operating systems, Study guides and exams, Windows 10 | Tagged , , , , , , , , | Leave a comment

I/O Addresses and I/O memory

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

Advertisement

Posted in computer fundamentals, Linux, Operating systems, Uncategorized | Tagged , , , , , , , | Leave a comment

Device IRQ’s (interrupt requests) a Definition.

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

Posted in Development board hardware, Linux, Radxa rock, Raspberry pi, Single board computers, Uncategorized | Tagged , , , , , | Leave a comment

Hexadecimal file editors and viewers

In my last post I talked a little about the numeric base systems of (Binary, Octal, Hex-decimal and Decimal) relating them to both computer machine level instruction code and application data. However these mathematical concepts are a little hard to … Continue reading

Posted in computer fundamentals, Linux, Operating systems, Programming skills | Tagged , , , , , , , , , , , , | Leave a comment

Numeric base systems of (Binary, Octal, Hex-decimal and Decimal)

Computer related numeric systems and their written representation In My last post I talked a little about the way computers see both their pre-defined commands in the form of machine code instructions that are grouped into applications by a programmer. … Continue reading

Posted in computer fundamentals, Development Languages, Programming skills | Tagged , , , , , , , , , , , , | 1 Comment