After my previous post about checking computer specs in Linux somebody asked an interesting question: how do you check your computer’s specifications if you don’t actually have any operating system to check them with?
In my opinion the easiest way to do this would be to download a disk image of a live CD for a lightweight Linux distribution, such as my favourite: ArchLinux. Once you’ve burned it to a disc you can put it in your computer and boot directly from the disc. ArchLinux is light and fast and will allow you to log in as root with command line access, where you will be able to run the commands I talked about in my other post to find your computer specs even for a computer with no OS or in other cases, for example where you don’t have permission to check with the current OS. If you’re not familiar with Linux don’t worry, follow the on-screen instructions and just type the commands I described. When you’re done checking you can turn off the computer and take out the CD and things will be just as they were before.
His blog was a great resource for people who keep things light and get the most out of the technology they have. It has a huge list of software and a wiki too. He used to post very regularly, about once a day, but although the site is still online, he won’t be making any more additions. This was without a doubt my favourite blog, probably the only blog I actually read. I’m not sure I’ll ever write that much on here, I haven’t even written anything for the last 4 months or so, but I somehow hope I can carry on what K. Mandla started and share my useful ideas and information with you.
“Be kind to one another. We’re all we’ve got.” —K.Mandla
Something you always want to do on a computer, even if only once, is to check its hardware specifications, that is:
how much RAM do I have?
how much hard disk space do I have?
how “fast” is my CPU?
how much RAM does my graphics card have?
Of course most modern GNU/Linux desktop environments like Ubuntu usually come with some kind of graphical tool to find this information. GNOME’s System Monitor program should provide at least some of what you’re looking for. The information here is more for when you’re staring at a blinking cursor on a black screen trying to remember what the command was to show information about the CPU, RAM or Graphics Card.
This is the third time I’ve had to go on an internet search quest to remind myself how to do this in a Linux terminal. To save myself the trouble in the future, I’m writing down the commands here and if anyone else finds it useful then that’s great, and a second bird is figuratively killed! Continue reading →
You can look down on the idea of it all you want but command-line games have their place. Not only are there situations where you need them but in a way, not having any graphics sometimes allows them to focus on other aspects of gameplay that makes them better. I was installing a new operating system on my computer today but I messed up somewhere and ended up with no Desktop Environment. Imagine turning on your computer one day and where you usually get:
“Hi, welcome to your computer [insert lots of fancy graphics and stuff], please pick who you want to log in as and I’ll give you a desktop with buttons and icons that will show you programs in little windows and let you click on things to do stuff.”
I think I need to apologise for my recent quietness, I was working on 2 big projects which I learned a lot from, maybe even things that I’ll post about here for the geekier people following my blog to read, and (maybe more importantly) so that if I ever need to remember something cool/useful that I learnt doing this, I can read to remember it.
One really nice but unrelated thing that I learned during my hiatus was how to make 3 minute brownies in a cup! The Anonymous internet were on an information sharing spree and this was one of the things being shared. My family and I have really enjoyed this so I hope you will too. Here’s the picture I got with all you need to know:
Recipe by Pictures: 3min Brownies
To save this from being a somewhat redundant post where no value is added I’d like to mention that you should not be shy when adding the oil/milk unless you like dry brownies and that if you are preparing more than 1 cup you might like to increase the time on the microwave or do them one cup at a time otherwise you end up with a cup of un-baked chocolate goo, which is arguably not such a bad thing… I have yet to test if the cocoa can be safely substituted with Milo. If you don’t have any cocoa you can use Milo. I have tested this and the result is a bit strange but I think you can still call it a brownie.
I was reading something by a friend of mine about an easy way to remember a large number of passwords. I had some comments on it but I was writing a bit too much to fit in a comment box so I’ve moved it here instead.
The basic idea is that because it’s inadvisable to use the same password across multiple networks because, possibly amongst other things, if someone knows one of your passwords then they have access to everything you do online! So it was suggested that you pick something memorable, for instance you might be a proud supporter of Liverpool F.C., so you take the word “liverpool” and prepend the first letter of whatever service the password is for to that. For example:
And so on…
Now, while in principle this might be an easy way to remember passwords, there are some problems with it, so I’d like to add a bit more. Continue reading →
A tutorial on how to install Ubuntu on your computer is completely redundantbecause it’s really that easy. I’ve installed Windows 7 for people and I’ve installed Ubuntu, as well as several other things. Based on my observation Ubuntu’s installer is the easier of the two.This is what you have to do: Download the disk image from the Ubuntu Website, burn it to a CD, put the CD in your computer and restart the computer. Welcome to Ubuntu!
Edit: Based on some feedback there are some things I would like to add:
It’s that time of year again, when the Ubuntu users eagerly await the next release of their now purplish OS: Ubuntu 11.04 aka the Natty Narwhal. There have been some very big changes in Ubuntu since the last release (which, if you’ve been following Linux news, you’re probably already aware of), if you thought changing the orientation of the window buttons was radical then you’re in for a shock. Continue reading →
My brother’s doing his International Baccalaureate Diploma right now and for one of his Geography assignments he had to make these graphs -cross sections of rivers- he called them geographs because… they’re for geography and because it has fewer words, so that’s what I’ll call them here. He drew them by hand but they got smudged and I thought it would be nice if he could make them digitally, but that’s a lot of work. I then thought it would be good if there was an easy way to do this, and, having found one, I’ve decided to share it with the world so that other IB students can benefit from this too!
What is a GeoGraph?
It’s a bunch of points on a graph that shows the depth at different points of a river the class studies.
A graph looks like this one:
And as I understand, it works like this:
there is one graph for each transect measured at different points on the river
the width of the transect is shown
the width of the graph is scaled to the width of the transect
the depth of the river is shown for different points along these transects
the depth is measured at 5 points along the transect:
at the start of the transect
at the end of the transect
halfway between the start and the end
halfway between the midpoint and the start
halfway between the midpoint and the end
the depth is measured as a negative number
because depth is negative the graph is drawn below the x-axis
the graph is shown as an irregular polygon connecting all points on the graph
there is a line along the bottom of the polygon connecting the first and last points
this line is as low as the lowest point on the graph
That’s a lot of points to consider, and it’s why this graph is not easily done using the graphing functions of your spreadsheet application (for most of you that’s probably MS Excel). A lot of people might get frustrated, or resort to just drawing it in Paint or some other simple drawing program, which is much too much work! Don’t worry there’s a much easier way of doing it, and it’s all described below. Continue reading →