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04 January 2010, 00:29 UTCReturned my Dgtec HDPVR5009 to Dick Smith

Last week I bought a "Dgtec HDPVR5009" High-definition Personal Video Record from Dick Smith electronics. Today I returned it, which is a bit disappointing.

It should be a reasonably adequate device. It doesn't have AV input, so I cannot digitise old videos, it doesn't have USB for external storage or network or any of those frills. But it has twin HD DVB-T tuners and 500GB of internal disk drive, and HDMI output, so it should do basic recording and playback OK. But it doesn't.

Also there seem to be a lot of rough edges on the software, enough to make me feel it would constantly annoy me.

The big problems were:

Those were enough to convince me to take the device back. Other problems are relatively minor but still an annoyance.

So, a long way less than perfect. And while the price-point ($400) would lead you not to expect perfection, it was to me sufficiently far from perfect to be unusable. Your mileage might vary....

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11 June 2006, 04:43 UTCA good tongue to speak in.

So, Christian: You think you would like to be able to "Speak in tongues"?

Let me suggest a good tongue to start with.

They say "Money speaks all languages" so if you speak with money, you can speak in all tongues.

I encourage you then to speak your worship of God with the language of Money. Give, as Christ has given so much to you.

Then your 'speaking in tongues' will truely be a blessing to many (including yourself) and will be glofirfying to God.

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27 February 2006, 17:54 UTCFree Indeed

What would you say is the biggest difference between "The Western World" (by which I mean Australia, NZ, UK, USA, Canada, Western Europe, and similar countries and their cultures) and the rest of the world?

I think one answer would have to be freedom. The US in particular seems to make a big deal of individual freedom, but they are by no means alone in enjoying it. Most western cultures do, while many African, Asian, and East European countries do not enjoy as much freedom (I'm not sure about South America..)

By freedom I mean many things. Freedom to speak one's mind in public. Freedom to worship as one pleases. Freedom to choose how to uses one's time and property. Indeed, freedom to own property. It also includes the concept of a free market to buy and sell goods and services.

Freedom from poverty, freedom from ignorance, freedom from curable disease are also important parts of freedom and whiile they may not be as prevalent in the west as we might like, they are much more prevalent thant in the rest.

So where does this freedom come from? The answer would seem to be "From Christians".

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16 July 2005, 23:24 UTCSpiritual Gifts of Spiritual People
One of the topics that often receives, and requires, teaching in the Christian Church is that of so-called Spiritual Gifts. This is hardly a new thing. Paul was teaching about it in the first century to the Corinthians (1Cor12) and the Ephesians (Eph 4) and others (e.g. Romans 12).

But it is still an important thing to teach about as there seems to be much confusion about it. One of the divisions in the Protestant Churches of today seems to between the so-called "Charismatic" and "Evangelical" movements and a large part of that division seems to be based around the understand of spiritual gifts. This is particularly ironic as in the places where the New Testament particularly teaches about theses gifts, the over-riding focus of the section in on Unity within the church.

So why am I saying all this? Because I recently gained a perspective on gifts that I find very helpful. It seems to put things in the right context in that it focuses on people, and people are what God is really interested in: People and their relationships to Him and to each other.

My observation is simply this: That some of the most significant gifts that I have received from God are people. The greatest gift was certainly a person: Jesus. Other gifts are very often people: people who encourage, or teach, or challenge, or care, or reveal God in some other way. I wouldn't say that gifts from God are exclusively people: God is much bigger than that. But it seems that when God wants to speak or act in someone's life, he prefers to do it with another person.

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15 December 2004, 10:28 UTCWhy I don't like ACLs and extended attributes
I really don't lile ACL's and extended attributes in filesystems. NFSv4 supports them and it makes it ugly. More and more filesystems are supporting them and it is just added complexity that really is the wrong way to go.

But me just saying that doesn't prove anything. So I should try to convince you, dear reader.

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06 December 2004, 17:02 UTCWhere Unix went wrong - filesystems - access control
This is one in a (possible) series where I complain about design decisions in Unix. Unix has, on the whole, a very good design, so mistakes stand out rather clearly.

Today's article looks at "Access Control" for files. The "ugo" access control in Unix doesn't seem all that bad until you look at the generalisation known as ACLs - access control lists. Once you see them you have to realise that something was fundamentally wrong to start with.

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14 June 2004, 12:46 UTCA theory of meetings
Meetings often bother me. They are important an dcan be useful. But they also often seem to be largely a waste of time. I sit there day-dreaming or tapping on my notebook (very rude!!) waiting for something that is of relevance to me.

I've been thinking about this on and off and would like to develop "theory of meetings", or atleast part of one.

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01 June 2004, 17:08 UTCEntry

Beyond Pipes

Pipes are a great tool for connecting programs together. It is a real joy to be able to connected various Unix tools together in a pipeline. One of my favourite is

... | sort | uniq -c | sort -n to get a frequency count of some collection of lines (often from logs).

It is worth noting that pipes are only one of the enabling technologies for this sort of thing. There are two others.

The first is the Bourne shell and derivative. The fact that the shell makes it easy to create pipelines is fundamental to their success.

The other is the common practice of having program receive and generate un-decorated line-oriented data. This 'common language' for passing data around is essential for pipelines to work. It is worth noting that while line-oriented is very standard, having fields in the lines is very ad-hoc. Many commands allow you to act of fields, but they all do so in different ways. If you compare sort, cut, uniq and others you will see a complete lack of uniformity. This something that a successor to pipes would need to address.

So a successor to pipes needs an IPC primitive (the pipe), and platform for building applications (the shell) and a standard data representation (line == record). It also needs a market - a reason for existence.

My own feeling of the market is for interactive tools. With pipe line, there is no opportunity for a conversation between elements of the pipeline. There is no way to have a "server" which will respond to requests, or a client that can give more information. So interactivity would be my choice of market place. Note that this doesn't mean interactive in a 'human-interacts-with-computer' sense, but in a 'client interacts with server' sense.

This is by no means a new market - there have been RPC (remote procedure call) systems for decades. There is even CORBA which is designed to make parts easily interchangeable. But somehow they don't seem to have the same degree of use as pipelines.

I also think that the IPC primitive is already available. I see two primitives as being usable. One is loadable modules, and the other is Unix domain sockets.

Loadable modules allow the server to run in the same address space as the client, which should provide high bandwidth and low latency. It does require the server to be single threaded and to only server one client at a time. For many applications this would be fine.

Unix domain sockets are an easy way to create a connection between two processes, much like a pipe. It is better than IP sockets as there is natural permission checking.

That just leaves a suitable data format, and a usable platform.

Data Format

I think it would be a mistake to try to define how fields fit into records, what separator to use, and how to label fields. It might be worth doing this if we were trying to make pipelines better, but we are going beyond that.

I see that appropriate abstraction being a namespace line a filesystem. Each server presents a namespace. Each name can be "opened" and the resulting channel can be subject to "read" and "write". Each client sees it's own namespace, so that different clients don't affect each other unless that is the purpose of the service.

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01 June 2004, 15:57 UTCGetting Organised

I often get the feeling that I am thrashing - lots of little things to do, plenty of interruptions, stuff gets done but it doesn't seem to get done as efficiently as it should. I spend to much time trying to decide what to do next.

So I recently (well, a few weeks ago now) realised that it was time for something to change.

Since then, I have been planning to do one thing each day. Sometime two if the second one was small, but normally one.

If I get an interruption that cannot be dealt with immediately, I schedule it in so that it has it's day, a few days hence.

This has been working REALLY WELL.


On the whole, I am very pleased.

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30 March 2004, 06:43 UTCBeyond Spreadsheets
It is time that so-called "Office suites" got beyond the spreadsheet.

Spread sheets are a wonderful and powerful idea. I have put them to good use several times. But they are tied to an idea that is no longer relevant - the idea from which they got their name.

A spread sheet is basically an infinitely (or atleast indefinately) large two dimensional table of cells. Each cell can do calculations based on values in other cells. This is great for doing calculations on columns or rows or whole tables. This works really well. There is just one problem.

I've never wanted to have an indefinately large table.

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25 March 2004, 16:23 UTCA new sort of HashCash?
24 March 2004, 17:19 UTCI want a better EMACS

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