Archive for the ‘Hardware’ Category
Isn’t It About Time You Had A Memory Upgrade?
March 6th, 2012 | 
Author: When was the last time your computer or the internet or life for that matter was working too good? Never right? My point is that we stop being successful in anything that we do if we sit back and let things come to us. There is no secret way to have success without working for it. The work is to always be improving. So what does this have to do with computers and memory upgrade?
Well for one thing life in general is getting more and more to be computer run. If you don’t update your technology or do memory upgrade fast enough you can be in the “dark ages,” before you notice. Even personal computers have large hard drives and very fast processor speeds, and it is making a huge difference in the productivity of people in this day and age. Whether you are a internet shopper, or a database guru, or a writer, or gamer, or researcher, the tools that you have with computers are essential to doing the amount of work that you are able to do.
So how do you improve your productivity? Well there are three basic ways that come to mind: 1) buy the latest and greatest computer on the market to get all of the newest technologies, 2) you can make sure a virus isn’t causing problems, 3) memory upgrade — go out and buy extra memory and either put it yourself for free (not recommended) or let an expert do it, or 4) you can buy software that can analyze your computer make suggestions, changes, repairs, etc. in order to increase efficiency. It is this last method that I want to talk about more.
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iPod Domination
iPod Is Dominating the Market, and There Is More to Come
iPod contributes 12-14% of total company revenues, a number industry experts believe will continue to increase. With this increase comes pressure on gross margins, as the blended iPod gross margin of 20% compares unfavorably with Apple’s corporate average of 27-28%. The iPod helped augment Apple’s growth by expanding its addressable market from the core computer market, which continues to grow, but at slower rates. To increase penetration of the rapidly growing MP3 player market, Apple launched the iPod Mini internationally in July 2004, and HP’s iPod launch is scheduled for later in summer. http://www.ipodreviewforum.com
Apple’s entry into the digital music player market (MP3 market) with its popular iPod expanded the company’s addressable market and signaled a turn in Apple’s strategy. The iPod is a cultural phenomenon that is capitalizing on the convergence of digital consumer electronics and the computer, and Apple’s position as an early mover enabled it to achieve the number-one position in the marketplace. iPod adoption continues to accelerate, with little indication of a slowdown. It took Apple approximately 18 months to sell its first million iPods, but its second million came in six months and its third million came in four. In fact, it appears that only its suppliers can slow it down, in particular the hard-drive vendors, which are having a difficult time meeting demand. Industry experts believe that iPod’s growth will remain strong in the foreseeable future and do not expect any significant customer fallout stemming from Apple’s inability to meet demand.
An analysis of the launch of the Sony Walkman in 1979 indicates the market opportunity for a revolutionary portable music player will remain strong for several years to come and Apple is expected to maintain a strong share for the next few years (unlike Sony’s experience with the Walkman).
While iPod and iTunes generate significant awareness of the Apple product, they have done little to grow Apple’s core Mac business. Experts attribute this mainly to Apple’s aboveaverage pricing, along with continued ignorance on the part of consumers regarding the compatibility of Windows and Mac. With regard to pricing, the average consumer desktop PC retails for $1,019, which is $280 below Apple’s low-end price point on Apple’s now, discontinued flat-panel iMac. Furthermore, the industry ASP is falling as most of the growth in the market is taking place in the sub-$1,000 market.
Introduction Of A Basic Printer
We would have been still constructing the Panama Canal but for the modern gigantic construction equipments. These Herculean machines made life easy for us by their enormous strengths and capacities for long drawn heavy duties under all torturous conditions.
To think that these engineering marvels work for reclaiming lands from bays, striking piles into the hard sea beds or drilling tunnels deep below the sea beds (Trans European Tunnel connecting England to France), is mind boggling. The list can go endless but for the scope of this article which is limited.
Equipments to Suit All Needs
Construction equipments may be classified as per needs and further by capacities.
1. Excavating and Earth moving: These gigantic machines are hydraulically operated to safeguard from shock failures. These are the first machines to be employed for preparing the construction sites. Land leveling by digging and cutting terrains are done by excavators of appropriate capacities which run into 1000s of HP. Basic earth movers include dozers, tippers and loaders.
2. Concrete processors: Batch or continuous concrete mixers are computer programmed for consistent precise mix. These are stationed permanently near the site or in the factory depending on convenience. Small batch mixers of less than one quintal capacities are portable. The concrete is transported from far off plants in transit mixers of minimum capacity 6 cubic meters by volume. Concrete is poured to the spot using concrete pumps.
3. Bar bending machines: Small high torque generating bar bending machines are handy in bending and forming construction steel bars. These are available in various specifications.
4. Rollers and compactors: Rollers are employed to compact the ground after dozers have leveled it. Some rollers are also equipped with vibrating compactors eliminating the need for separate compacting. For small areas like indoors vibrating plate compactors, which generate up to 1000kgf maybe used. Read the rest of this entry »
Inside Your Inkjet Printer: How Does It Work?
Have you ever wondered how your inkjet printer works?
How does the ink get from the inkjet cartridge to the paper? Why is the print quality is so clear? Why the printing is so quiet?
Generally, all that most people know is that there’s some movement and a faint high pitched sound when it’s printing something — and then the finished document comes out.
Unlike dot matrix and character printers that strike ribbons to create an image, inkjet printers do not physically touch the paper.
All inkjet printers function using the same basic principles. Tiny ink droplets are “jetted” (or pushed) out multiple holes onto paper in a controlled and systematic fashion. This is where the term “inkjet” comes from.
The size of ink droplets, speed and reliability of this type of printer has been continuously improving since its inception in 1976. In 1993, Epson was the first manufacturer to produce an inkjet printer using micro-piezo technology. The Epson Stylus 800 was the first printer to use the multi-layer actuator printhead (the printhead is the part of the printer that holds numerous tiny nozzles that actually squirts the ink onto paper).
This specific printhead utilized an electro-mechanical element that acted like a tiny control room. When pulses of electricity passed through, it that gave specific signals to fire individual or multiple nozzles loaded with ink.
Micro-piezo technology utilized a tiny crystal in each individual nozzle that when electrically energized, would vibrate or bend causing a controlled amount of ink to be forced out onto paper. When the electrical current is off, the crystal bends back to its original shape, creating a vacuum, thus pulling ink into the nozzle from the reservoir for the next commanded fire.
The Epson printhead was fixed to the carriage so it never needed replacing (the printer carriage is what moves laterally across the paper). This also kept the cost of ink cartridges low since they were little more than reservoirs of ink.
This breakthrough printer produced a whopping 360 dpi (dots per inch) that was deemed, almost “letter quality” at the time. With a printing speed of 150 – 180 characters per second, the new Epson became the user favorite printer for home and office.
At the same time, HP was using a similar technology. A thermal jetting system was utilized in their printhead. The printhead still acted like the control room but each individual nozzle was instead independently super heated by electricity, which caused the ink to explode onto the paper. HP claims the temperature of a fired inkjet nozzle approaches that of the surface of the sun.
HP elected to put the printhead on the inkjet cartridge itself instead of mounting it permanently to the carriage. Since each inkjet cartridge would have its own printhead, replacement cartridges would be more expensive for these printers.
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