Showing posts with label Software. Show all posts
Showing posts with label Software. Show all posts

Monday, September 28, 2009

Mainframe work still a safe career

"Mainframe" computers are often described as dinosaurs that will soon be extinct. Most detractors say they'll be replaced by servers closer to where the work is being done. Companies that have tried both almost never get rid of the mainframes, because they turn out to be cost-justified.

Often a building full of servers can barely do the same volume of work being done by the mainframes in a single room. For the equivalent results, the mainframe can do the job with fewer salaries to pay, lower energy costs, and more reliability. Often a corporation will end up splitting their processing, with the user interface on servers located near the users, and the data & business rules on mainframes in a secure central location.

With modern telecommunications capabilities & costs, location is not significant. I know of one corporation that saved money by bringing data centers from Europe & Asia to a single centralized facility in the US. Users in the other countries still see their familiar applications operating in the same time zones, with the same reliability. This same corporation has developers world-wide creating and maintaining business applications on those US based mainframes.
Bank of America touts mainframe work as a safe career:
"IBM said this week that 600 colleges, universities and high schools around the world are participating in the mainframe training program, which began in 2004.

The training initiative provides interns and new hires to Bank of America, while some members of its IT staff audit the initiative's courses and provide feedback to help tune the training to business needs.

IBM says it's mainframe revenue has grown in eight of the last 13 quarters. It did note that mainframe revenue plunged by 39% in the second quarter, mirroring server revenue declines for most vendors.

Competing vendors have been arguing that distributed systems have become a strong alternative to mainframes.

However, IT researcher IDC says that MIPS (Million Instructions per Second), a measure of processing power capacity used by mainframes, is on the rise. The mainframe is continuing to grow in terms of the amount of work that processed on the mainframe, which reflects improvements to the platform, said Tim Grieser, an analyst at IDC."

Tuesday, June 30, 2009

Tab Mix Plus FireFox plugin - Chaos Manor

Used and recommended :-)
Chaos Manor Reviews - Mailbag for June, 2009:
". . .
I just installed the Tab Mix Plus 0.3.7.3 plugin because I remembered your mentioning that you use it to display multiple rows of tabs in Firefox. It took me a while to find it by searching www.jerrypournelle.com, but I really appreciate that you archive your 'columns' and make then searchable.

This is exactly what I need when I have a lot of tabs open - thanks!

There are so many Firefox plugins available now that it really helps to have recommendations from a trusted source."

Thursday, January 22, 2009

Why I bought a Palm Centro

Our family just replaced our cell phones while switching to a new carrier. With all the exciting new phones available, I bought a Palm Centro smart-phone – not exactly the latest technology available. This was based partly on price, partly on my familiarity with the Palm PDAs, and partly on the limited availability of devices at our local Verizon store. 

We went to Verizon originally seeking the BlackBerry Storm, but it proved disappointingly slow and prone to freezing in actual use. Other family members decided on the Samsung Omnia - a nice touch-phone. Although the Omnia runs the much maligned Windows Mobile operating system they seem to be doing well with it. 

To replace my PDA & cell, I didn’t want a large smart-phone – the Treo & Blackjack are about the largest I was willing to consider, and the Centro is significantly smaller than them. With a case, the Centro isn’t really smaller than my old Sanyo Vi-2300 flip-phone, but it certainly is smaller than two devices. I like the fact that there are no major moving parts like slide-out keyboards or moving screens – hopefully, that translates into a longer & more reliable service life. 

The primary reason I chose a Palm Smart-Phone is the ability to synchronize contacts, calendars, memos, etc. with IBM’s Lotus Notes. IBM’s Lotus EasySync Pro software didn’t work out of the box (even though it worked well with my Clie), so I tried finding solutions on their web-site. The main suggestion seemed to be uninstalling the Palm software and EasySync, and then reinstalling them in sequence. This initially appeared to fail (the Lotus software always hung shortly after starting), but after a couple of days, it magically worked perfectly upon powering up for the day. I guess adding reboots to the instructions would be helpful. EasySync works with Windows Mobile also, which is why the Palm Treo and a couple of HTC phones were on my list. 

The BlackBerrys look very useful, but this kind of synchronization isn’t supported by my local office, and I don’t need the frustration of setting that up on my own. One nice thing I didn't expect is that my Centro's alarms sound off at about the same time as those from Lotus Notes. The Clie's alarms always go off at a different time, sometimes making me wonder if it isn't synchronized with Notes correctly. This is probably because the Centro gets the correct time from from Verizon when the phone is on. 

The “tactile” QWERTY keyboard is just barely big enough, but the individually shaped keys really help with accuracy. For me, it is a huge improvement over using a regular telephone keyboard to enter text (I never got comfortable with T9 data entry). The sticky Alt & Shift keys help a lot now that I’m used to them. Searching text is vital to getting info from a Palm quickly - instead of a dedicated Search key, the Centro combines this function in the Shift key and requires the Option key be pressed before pressing the Shift/Find key. This was not intuitively obvious to me, but after finding it in the user guide, it is easy enough to use. 

The screen is small but bright for a Palm, very nice for a phone – I prefer my old Sony Clie PDA screen (and it’s Jog-Dial button), but not enough to keep carrying it in addition to a phone. I can read text easily without adjusting my glasses when using it as a phone, but I have difficulty using the small screen with games like Solitaire unless I switch or take off my glasses. My biggest problem with the small screen is the need to use a stylus for some of the smaller icons. I can select most fields with a fingernail, but pulling out the Centro’s plastic stylus can be frustrating when it is needed. I usually grab a multi-function pen that includes a stylus instead. 

The Palm Software is the latest version (Garnet - 5.4.9), so it has more features, takes advantage of a faster processor, and seems as stable as my prior Palm PDAs. If you like Palm, then this is more of the same. I also like the Palm Treo running Windows Mobile 6.1, but that wasn’t available from Verizon. 

I got a BodyGlove case at the Verizon store, and like their other products I’ve used, it fits well and works well (especially the belt clip). Although my cased Centro has passed a parking lot drop-test, I’m worried about the exposure of the open screen and keyboard when clipped to my belt, so I’ll try a leather pouch also. With the Bluetooth headset, I can leave it on my waist much of the time. 

The Centro has a 1.3 Mega Pixel camera – definitely the low end these days, but it performs well enough. The software integrates the Palm memory and the tiny Micro-SD memory card seamlessly. You can see where an album is located, but all albums on the Centro (including the card) are visible all the time. This is good enough for the “camera you have with you” events like recording accident scenes, etc. 

The Omnia has a 5 Mega Pixel camera with a flash – I expect to see great pictures from family as they get used to using this. 

Because the Centro has been available for quite a while, and is nearing the end of it’s marketing life (the price point where I seem to buy many gadgets), most accessories are heavily discounted, including cases, batteries, chargers, headsets, etc. I’m getting a few accessories now before availability becomes a concern. 

The Palm manual states that a screen saver (plastic film overlay) isn’t needed on the Centro, but after a few days of worrying about the exposed screen I installed one anyway. The brightness isn’t affected, and it isn’t too slick for comfortable use with a stylus. I also cut out a small circle of the film to protect the camera lens on the back – not an easy task, but it contributes to a little peace of mind. 

The Centro is probably the least expensive Smart-Phone available now – I paid $49.99 for this one. Monthly cost is comparable to our previous Sprint plan, and I can add a data-plan for another $30 or so. I’m going to monitor the bill for a couple of months before deciding if I need a data-plan. I have lots of the information I need loaded in the Palm already as memos & documents, so I may not use the Internet a lot. 

I long ago decided not to have work e-mail on my personal PDA, but I may decide to have my personal e-mail copied to the Centro. 

 One feature I wanted in my new smart-phone was a music-player. The Centro includes this software, but it uses a 2.5mm headset jack, so I'll have to wait a few days before learning how good it is - a stereo headset with the correct plug is "in the mail". The provided music player pTunes isn't integrated with the Palm Desktop - it needs to be installed on the PC separately, and this isn't documented well by Palm. I needed to download the pTunes Windows application (and I'm still not sure if I have a trial version or if it is licensed because I own a Centro). Once installed, the pTunes integration with the newly downloaded Windows Media Player 11 seems excellent. It is easy to create & download massive playlists to the memory card from within Media Player while music is playing on the PC. The download process takes a while, but doesn't interfere with doing other work on the PC. The first time I synchronized the media player screen was new & busy - I finally noticed the spinning synchronization logo after it was about 60% complete. Finding specific albums & songs on the Centro seems a little awkward now, but I'll probably uncover shortcuts that make it easier after using pTunes more.

Windows Mobile application managers

There are a couple of WinMo Smart-Phones in my immediate family. This software may make them easier to maintain & update.

Windows Mobile gets app manager:
"While Microsoft reportedly prepares an OTA (over the air) applications marketplace for Windows Mobile, it has been beaten to the punch by a Canadian high school student. Nicolas Bouliane's freely downloadable 'Gecko' utility allows online downloading, installation, and updating of Windows Mobile apps, says the author.

. . . "for Windows Mobile users, installing an application has never been an easy process. There are .CAB files, .EXE files, .MSI installers, and compressed files, and each of them install differently. Most of the time, you will need to synchronize your device with your computer in order to install applications."

. . .
Ironically, while Windows Mobile users have waited years for an OTA application installer, they'll soon have more than one to play with. Widespread rumors, originally sparked by online job postings, suggest that Microsoft will soon launch SkyMarket, constituting both an online applications store and a device-based installer.

. . . Our best guess is that an unofficial, open-source applications manager could continue to be useful to developers who, for the sake of speed or whatever other reason, do not want to submit their applications for approval and hosting via Microsoft. This is not without precedent: While most Apple iPhone apps are provided via the company's App Store, a substantial minority are written for "jail broken" devices, to which they get downloaded via the open-source Cydia installer."