Andy Pastuszak
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Praying for my family and everyone in Ukraine.
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What I collect: United States, Ukraine, Ireland
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Post by Andy Pastuszak on Feb 14, 2014 3:58:21 GMT
I mentioned a piece of software called Vuescan before. I'm curious if anyone can notice a difference between these two scans, done on an Epson Antisam 835 All In One. This one was done in Apple Image Capture that comes with OS X. Resolution was 144 DPI.  And this one was done with the Mac version of Vuescan at 144 DPI:  Anyone notice a difference? Any comments welcome. |
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Zuzu
Member
Inactive
Self-Proclaimed Black Belt in Google Fu
Posts: 768 
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Post by Zuzu on Feb 14, 2014 4:31:48 GMT
I see very little difference. I believe the text on the Vuescan image is a little crisper.
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rod222
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Post by rod222 on Feb 14, 2014 5:02:19 GMT
I see little difference as well, yet the second (vuescan) just appears a little crisper.
Bravo! what a page. That will have some weight when backed with another page.
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Cal
**Member** 
Still vertical ...
Posts: 33
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Post by Cal on Feb 14, 2014 12:33:55 GMT
Viewing on an iPad, I see no obvious difference.
... Cal
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Post by Perfs14 on Feb 14, 2014 21:11:02 GMT
I can see no significant difference at this resolution (I copied your images and magnified portions of them as well). Try just part of the page at 600 or greater dpi, differences may show up.  |
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Andy Pastuszak
Member
Praying for my family and everyone in Ukraine.
Posts: 1,533
What I collect: United States, Ukraine, Ireland
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Post by Andy Pastuszak on Feb 14, 2014 21:38:24 GMT
Ok, I'll do that tonight while the kids are off playing Magic The Gathering.
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Andy Pastuszak
Member
Praying for my family and everyone in Ukraine.
Posts: 1,533
What I collect: United States, Ukraine, Ireland
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Post by Andy Pastuszak on Mar 23, 2014 2:04:17 GMT
Well with the Mac mini dying two weeks ago, this little experiment has come to a close. Sigh...
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firstfrog2013
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Post by firstfrog2013 on Mar 23, 2014 2:47:46 GMT
RIP alas poor Mac we knew him well.
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rod222
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Post by rod222 on Nov 6, 2015 3:09:48 GMT
Any members upgraded their computer with a SSD ? (Solid State Drive) (No moving parts, except bits and bytes)
Availability now in Aust (500Gb Samsung $219)
Comments?
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Admin
Administrator 
Posts: 2,636
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Post by Admin on Nov 6, 2015 17:57:53 GMT
Any members upgraded their computer with a SSD ? (Solid State Drive) (No moving parts, except bits and bytes) Availability now in Aust (500Gb Samsung $219) Comments? Answer to your question NO But I have also been looking into SSD and been leaning towards the Samsung. After reading many reviews it seems it has both good performance and price. I have bought many Samsung products and always had good experience with them. I find their prices are reasonable and the quality is good. |
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rod222
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Post by rod222 on Nov 7, 2015 0:33:15 GMT
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rod222
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Post by rod222 on Nov 29, 2015 5:44:04 GMT
Employing the Google Search at the bottom of the TSF page...
Is there a convention for searching for a phrase?
eg "western Canada airmail" will succeed in the TSF search box, but not in the Google box. Any suggestions?
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Jerry B
Departed
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Marietta, Georgia USA
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Post by Jerry B on Nov 29, 2015 7:55:12 GMT
Hi
Some thoughts on SSD. When I was in engineering I worked with solid state devices, "chips". There is some "leakage" in solid state components so, I wonder, what is the volatility (retention) of SSD devices, i.e; how long will data remain intact without degrading.
I use a Flash drive (also solid state but different technology) but only as temporary storage. I backup on DVD's, which is a physical storage medium, assuming the data will remain and not deteriorate, at least not in my lifetime.
Jerry B
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rod222
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Post by rod222 on Nov 29, 2015 9:34:40 GMT
Hi Some thoughts on SSD. When I was in engineering I worked with solid state devices, "chips". There is some "leakage" in solid state components so, I wonder, what is the volatility (retention) of SSD devices, i.e; how long will data remain intact without degrading. I use a Flash drive (also solid state but different technology) but only as temporary storage. I backup on DVD's, which is a physical storage medium, assuming the data will remain and not deteriorate, at least not in my lifetime. Jerry B Hi Jerry, in the opinion of IT journalists, the solid state are more reliable than magnetic HDD's I left DVD storage 10 years ago. A 1 terabyte HDD is around $80, and transfers around 40 Gb per hour. |
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Jerry B
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Marietta, Georgia USA
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Post by Jerry B on Nov 29, 2015 12:25:00 GMT
Hi Rodney When all is said and done a DVD will last and have no discernible degradation in quality over the years. At one time the MTB (mean time between failures) for hard drives was iffy at best. However, the reliability today is excellent with few failures. After posting, I did some research on the internet and the comments for SSD is varied. I agree they are fast as access is direct. There is no waiting for the disk location to be under the read head. Access is similar to memory access. Until some new technology comes along I, personally, am going to stay with the DVD approach. In fact, I copied all my software CDs to DVDs. I use the CDs for music. I guess, for now, I am going to stay in the "let's wait and see" category. I am not totally against SSD. I'm flexible. I even repaired and transferred all my wife's 8 tracks and vinyls to casettes (next step casette to CD)  Jerry B |
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Andy Pastuszak
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Praying for my family and everyone in Ukraine.
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What I collect: United States, Ukraine, Ireland
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Post by Andy Pastuszak on Nov 29, 2015 19:45:54 GMT
DVDs don't last as long as you think they will. I have had tons of CD-Rs and DVD-Rs go bad on me over the years. Heck, I just tried to read a pile of DVD-Rs I burned 10 years ago, and I could only read one of them.
I think part of the issue is the quality of the DVDs/CDs. Buying whatever was on sale back in the 90s/early 2000s was probably not the best choice. I know they made (and still do make) archival quality CD-Rs/DVD-Rs. Those will probably last a LOT longer than the crap they would sell for $20/spindle of 100.
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Jerry B
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Marietta, Georgia USA
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Post by Jerry B on Nov 30, 2015 9:34:43 GMT
Hi Andy
The DVDs and CDs I buy are Memorex. They are a little more expensive but they seem to be a better quality. Memorex has been making storage media for years and I feel they have gotten it right.
The only time I could not read a CD was when the CD was burned using old type hardware. Also if the surface is dirty the led laser cannot "read" the disc. Most people think that the shiny surface is the recording surface but in actuality the recording surface is under that. So, a little alcohol (isopropyl only) and gentle wiping can solve the problem.
Jerry B
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Andy Pastuszak
Member
Praying for my family and everyone in Ukraine.
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What I collect: United States, Ukraine, Ireland
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Post by Andy Pastuszak on Dec 9, 2015 14:56:32 GMT
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Jerry B
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Marietta, Georgia USA
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Post by Jerry B on Dec 9, 2015 16:22:20 GMT
Hi Andy Interesting article about M-Disk. That is probably for me as I have been accused of writing code at one time with a chisel and stone tablet. External hard drives are still prone to "crashing". Personally, as an electrical engineer, I think USB sticks are more prone to lose their data than an SSD. One great advantage of SSD is that it does not rotate, it is similar to memory. As long as it is solid state it is bound to "leak". Question is what is the expected time frame for all charge to be gone. I feel that CD or DVD gets destroyed because no care is taken. So, I'll keep my CD/DVD for now. If one remembers, Vinyl records left in the sun did not do well either. Do you remember DAT (Digital Audio Tape)? Someone I know had a recorder that could create them. It was supposed to be the greatest with repeatable quality playback. Last I knew my friend's DAT recorder was doing duty as a door stop (same person also bought an Osborne computer)  Jerry B |
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Andy Pastuszak
Member
Praying for my family and everyone in Ukraine.
Posts: 1,533
What I collect: United States, Ukraine, Ireland
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Post by Andy Pastuszak on Dec 9, 2015 18:30:14 GMT
Hi Andy Interesting article about M-Disk. That is probably for me as I have been accused of writing code at one time with a chisel and stone tablet. External hard drives are still prone to "crashing". Personally, as an electrical engineer, I think USB sticks are more prone to lose their data than an SSD. One great advantage of SSD is that it does not rotate, it is similar to memory. As long as it is solid state it is bound to "leak". Question is what is the expected time frame for all charge to be gone. I feel that CD or DVD gets destroyed because no care is taken. So, I'll keep my CD/DVD for now. If one remembers, Vinyl records left in the sun did not do well either. Do you remember DAT (Digital Audio Tape)? Someone I know had a recorder that could create them. It was supposed to be the greatest with repeatable quality playback. Last I knew my friend's DAT recorder was doing duty as a door stop (same person also bought an Osborne computer) Jerry B SSDs are indeed pretty immune to crashes. The biggest problem with older SSDs is that they have a battery on them. The battery has a life of around 5-7 years. When that battery dies, the SSDs simply gets wiped. Newer SSDs (since about 2014) don't need the battery any more. The one minor drawback with SSDs is that they can't be recovered if they crash, unlike mechanical drives. But because they're SSDs. They really should not crash. |
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Jerry B
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Marietta, Georgia USA
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Post by Jerry B on Dec 9, 2015 21:40:03 GMT
Hi Andy The batteries are probably used to keep a trickle charge on the chip components to retain the component states (0 or 1). However, if one takes PROM (Programmable Read Only Memory)into consideration they do not need power to retain their state. Note that PROMs can be reprogrammed. Therefore, I assume that the new SSDs (no batteries) are using some form of PROM technology. I believe the computer's BIOS is a prom. Its intriguing, at least to me, since I once worked in a solid state lab. Are you saying that the SSDs without power cannot be recovered? I can understand that with the battery powered SSDs. It is like your computer. Once you remove power everything in memory is lost. If you really want to get into the SSD technology: computer.howstuffworks.com/solid-state-drive.htmarstechnica.com/information-technology/2012/06/inside-the-ssd-revolution-how-solid-state-disks-really-work/Jerry B |
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Andy Pastuszak
Member
Praying for my family and everyone in Ukraine.
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What I collect: United States, Ukraine, Ireland
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Post by Andy Pastuszak on Dec 18, 2015 16:32:07 GMT
Hi Andy The batteries are probably used to keep a trickle charge on the chip components to retain the component states (0 or 1). However, if one takes PROM (Programmable Read Only Memory)into consideration they do not need power to retain their state. Note that PROMs can be reprogrammed. Therefore, I assume that the new SSDs (no batteries) are using some form of PROM technology. I believe the computer's BIOS is a prom. Its intriguing, at least to me, since I once worked in a solid state lab. Are you saying that the SSDs without power cannot be recovered? I can understand that with the battery powered SSDs. It is like your computer. Once you remove power everything in memory is lost. If you really want to get into the SSD technology: computer.howstuffworks.com/solid-state-drive.htmarstechnica.com/information-technology/2012/06/inside-the-ssd-revolution-how-solid-state-disks-really-work/Jerry B Yes. That is what I am saying. Older style SSDs get wiped when the battery on them goes dead. SSDs also do wear out over time, so backups are important. |
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rod222
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Post by rod222 on Feb 17, 2016 6:39:36 GMT
Looking at @falshung Austrian Airmails.
How does one get 2 images to lie side by side, in a post?
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cjd
Member
Posts: 1,107
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Post by cjd on Feb 17, 2016 13:48:25 GMT
If you put one image link directly behind the first link (i.e., on the same line), you'll get them side by side. Perhaps they have to fit within a certain width limitation, or else they'll "wrap" but that's just a guess...  |
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Feb 17, 2016 13:49:22 GMT
Paste the first image from the image insert icon
Press Space bar as much as you want separation between the 2 pictures
Paste the 2nd picture
Keep the total width of all the pictures to about 900 px otherwise it will default to one below the other
You can paste as many as you want together provided you don't make the total width too large
Picture size can easily be manipulated without adjusting it before you post
Too large a picture often gets blurred or detracts from the overall appeal of the post
Paste the picture in large format, before you save, click on the picture
A frame appears, grab the corner (not the side) and pull the picture to a convenient size.
A large blurred picture might now be a more detailed one.
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tomiseksj
Moderator 
Woodbridge, Virginia, USA
Posts: 6,263
What I collect: Worldwide stamps/covers, Cinderellas, Ohio Prepaid Sales Tax Receipts, U.S. WWII Ration ephemera
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Post by tomiseksj on Feb 17, 2016 14:59:56 GMT
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firstfrog2013
Member
Posts: 3,276
What I collect: BNA Liberia St Pierre U.S. Bolivia Turkey
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Post by firstfrog2013 on Feb 17, 2016 15:07:33 GMT
You guys are great! Keep it up and even I may catch up to you youngsters with the techy stuff. The question is can you catch up to me with the bulldozer ?
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tomiseksj
Moderator
Woodbridge, Virginia, USA
Posts: 6,263
What I collect: Worldwide stamps/covers, Cinderellas, Ohio Prepaid Sales Tax Receipts, U.S. WWII Ration ephemera
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Post by tomiseksj on Feb 17, 2016 15:10:16 GMT
What is your max speed? |
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bobby1948
Departed
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"The only thing necessary for the triumph of evil is for good men to do nothing." - Sir Edmund Burke
Posts: 690
What I collect: WW to 1945; US mnh 1922-1990; US used and unused to 1922
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Post by bobby1948 on Feb 17, 2016 15:20:57 GMT
I'm with you, frog, I am always eager for more input |
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area66
**Member**
Inactive
Posts: 27
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Post by area66 on Feb 17, 2016 15:24:55 GMT
The problem with SSD is the cell degradation, every time you write or erase a cell, it need a burst of electricity, this degrade the substrate every time. So cell have a write life cycle. When a cell is dead you can expect errors that can make the SSD unusable. With years, manufacturers found solutions to reduce the problem. When I build new servers or PC, I always use Intel SSD because they have 5 years warranty and I know they will honour it.
Usually in a PC you will have a SSD for the OS ( Windows, Linux ) and Mechanical drive for storage, what is important is to move the cache to the mechanical drive, actually with enough memory you don't even need disk cache.
I hope it's make sense with my poor English, if you have questions I will be please to elaborate more.
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