Macpro 2009, model MacPro4,1

Apple 24 inch LED display connected via displayport connector.

Xrite DTP94 colorimeter

Calcheck module of Veripress.

Procedure:

A set of colour patches were placed in a small rectangle in the centre of the screen and measured using the DTP94. These values were then used as the reference. Measurements were then taken on a 3 x 3 grid and the measurements compared to the reference using a simple distance formula in Lab ie. delteE CIE1976. The monitor brightness was measured at 150cd/m2 and 6481.30K. This is the way the monitor was already set as I am most comfortable working at this brightness level.

The results are summarised in the table below, and screen shots are included as a way of proof.

This is the average deltaE on the 3 x 3 grid

2.86 1.79 2.97

2.88 1.13 1.73

4.10 1.97 2.00

This is the maximum deltaE on the 3 x 3 grid.

5.63 2.86 4.49

4.71 1.73 3.04

5.52 3.04 4.59

This is the standard deviation on the 3 x 3 grid.

1.85 0.63 1.01

1.16 0.41 0.69

1.12 0.55 1.24

Observations:

From the results we can see that this monitor works best along the centre column and worst on the left and right hand columns. This is probably in line with the design criteria of the device, as most people focus their attention on the centre column of the screen when using the computer, as so most attention has been paid to making this as uniform as possible. I set the deltaE tolerance very high, 6.0, and even so the monitor does not pass the uniformity test. As I previously mentioned, I had the brightness at 150 cd/m2 but I doubt that increasing the brightness will improve the uniformity enough to make the device be useable for critical colour work.

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Apple I Basic plucked from vintage cassette tape, turned into MP3
POSTED BY JOHN BROWNLEE, JULY 16, 2008 3:10 AM | PERMALINK
They very first piece of commercial Apple software — a primordial flavor of BASIC originally released in 1976 that took thirty seconds to load — has been perfectly and authoritatively extracted from a yellowing audio tape and converted into a 38 second MP3, playable in iTunes. Plucky, hyper-intelligent beardos are now dissecting the file and learning its secrets, but their findings are a bit above my head. You can read them in full at the link below. All I feel worthy of commenting upon is the song itself, which is rather catchy — a Music to Make Love To Your Old Lady By as interpreted by antediluvian 70s cyborgs.
1200 Baud Archeology: Reconstructing Apple BASIC from a Cassette Tape [Pagetable via Crunchgear]

posted in: AUDIO AND PORTABLES , RETRO ,
[From Apple I Basic plucked from vintage cassette tape, turned into MP3 - Boing Boing Gadgets]

I took the picture with my unlocked / pawned iPhone . How ironic is that?