| Lecture 1 Hardware - Understanding Computers and the Internet. Lecture by Dan Armendariz and David J. Malan of Harvard University. This course is all about understanding: understanding what's going on inside your computer when you flip on the switch, why tech support has you constantly rebooting your computer, how everything you do on the Internet can be watched by others, and how your computer can become infected with a worm just by being turned on. Designed for students who use computers and the Internet every day but don't fully understand how it all works, this course fills in the gaps. Through lectures on hardware, software, the Internet, multimedia, security, privacy, website development, programming, and more, this course 'takes the hood off' of computers and the Internet so that students understand how it all works and why. Through discussions of current events, students are exposed also to the latest technologies. This is OpenCourseWare. Source Code, slides, subtitles and downloads of video availible at http://computerscience1.tv/2011/spring/ This course's content is licensed by Dan Armendariz and David J. Malan of Harvard University under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License. https://www.youtube.com/watch?v=PLigQUosV34 Read more ... | Newegg TV: How To Build a Computer - Part 1 - Choosing Your Components http://www.newegg.com Welcome to Newegg TV's How To Build a Computer tutorial! This is Part 1, where we'll be covering the different components that make up a typical computer, as well as the different functions they perform. Also, we provide some advice on planning out your build and choosing the best parts to suit your needs. Part 2 - Building Your Computer: http://www.youtube.com/watch?v=d_56kyib-Ls Part 3 - Installing an Operating System & Finishing Touches: http://www.youtube.com/watch?v=RxaVBsXEiok Here are some helpful links: Newegg's Computer Hardware Store - http://bit.ly/ifmBJG Newegg's DIY PC Combo Store - http://bit.ly/malqnf Newegg's Community Forums - http://www.eggxpert.com Check out our main channel for more tech videos! http://www.youtube.com/newegg and for all other newegg products, visit our second channel at http://www.youtube.com/neweggproducts - Credits - Camera, Editing, Titles: Mr. Lam 20+ Minutes of Talking about PC Parts: Paul https://www.youtube.com/watch?v=lPIXAtNGGCw Read more ... |
Saturday, August 29, 2015
All About Computers
Thursday, July 23, 2015
Shopping for Laptop Printers
Basic Tips On Shopping For Printers For Laptops
by: Jacob Akshire
by: Jacob Akshire
You can increase your laptop's functionality by getting a printer that goes with it. There are so many printers for laptops available nowadays, for sure there's a specific model out there that can meet your needs. However, the challenging part is looking for that specific unit. Worry not because below are some simple guidelines on buying one.
Going for a reliable brand is a good idea. It may not be the cheapest one around, but you know it's going to be of service for you for a long time. Besides, in case you need to purchase accessories or parts, you won't have a hard time finding them. Purchasing something that's from a cheap brand might only get broken easily.
Go for something that equals the portability of the laptop you own. Some models may have compact sizes but they may be on the heavy side. It's also possible for a large model to be light. Find a unit that's both compact and lightweight so you may lug it around hassle-free. There are models with such specifications, especially designed for people who are on the go always.
However, when picking a model that's compact, see to it that it can work on standard media sizes like letter, legal or executive. There are units out there that are limited when it comes to media sizes handled. That's why you should point out the size of documents you commonly print. For flexibility, choose a model which can also work on different media types.
Because of size discrepancies, all the ports you can find on a desktop computer may not be found on a laptop, especially a small one. For this reason, the printer you're eyeing should have a hi-speed USB 2.0 interface for easy hooking up with a laptop. Purchasing a printer that only sports a parallel port may not be a good idea at all.
A monochrome one is usually cheaper than something which can churn out both monochrome and color prints. Point out what your everyday printing needs are to be able to decide which of them to pick. It's also important to consider the resolution. This is measured in terms of dpi (dots per inch). If what you need to print are documents containing plain text, something that has a 600 x 600 dpi resolution is okay. A higher resolution is better for printing graphics.
The ppm, or short for pages per minute, will show you how fast the unit works. By and large, a printer is capable of producing more pages a minute when doing black-and-white tasks. You should also check out of the first-page-out time on the specifications list. This indicates how long will it take for the document to be printed from the time the data is transmitted to the printer.
Take a look as several different printers for laptops available out there. Go online and compare their features and prices. Read review by experts or drop by forum sites where the model you're considering to buy is being talked about.
Going for a reliable brand is a good idea. It may not be the cheapest one around, but you know it's going to be of service for you for a long time. Besides, in case you need to purchase accessories or parts, you won't have a hard time finding them. Purchasing something that's from a cheap brand might only get broken easily.
Go for something that equals the portability of the laptop you own. Some models may have compact sizes but they may be on the heavy side. It's also possible for a large model to be light. Find a unit that's both compact and lightweight so you may lug it around hassle-free. There are models with such specifications, especially designed for people who are on the go always.
However, when picking a model that's compact, see to it that it can work on standard media sizes like letter, legal or executive. There are units out there that are limited when it comes to media sizes handled. That's why you should point out the size of documents you commonly print. For flexibility, choose a model which can also work on different media types.
Because of size discrepancies, all the ports you can find on a desktop computer may not be found on a laptop, especially a small one. For this reason, the printer you're eyeing should have a hi-speed USB 2.0 interface for easy hooking up with a laptop. Purchasing a printer that only sports a parallel port may not be a good idea at all.
A monochrome one is usually cheaper than something which can churn out both monochrome and color prints. Point out what your everyday printing needs are to be able to decide which of them to pick. It's also important to consider the resolution. This is measured in terms of dpi (dots per inch). If what you need to print are documents containing plain text, something that has a 600 x 600 dpi resolution is okay. A higher resolution is better for printing graphics.
The ppm, or short for pages per minute, will show you how fast the unit works. By and large, a printer is capable of producing more pages a minute when doing black-and-white tasks. You should also check out of the first-page-out time on the specifications list. This indicates how long will it take for the document to be printed from the time the data is transmitted to the printer.
Take a look as several different printers for laptops available out there. Go online and compare their features and prices. Read review by experts or drop by forum sites where the model you're considering to buy is being talked about.
| About The Author
I have more reviews and information about laptop printers at my Website.
|
How to Maintain and Verify the Integrity of Your Windows System Files
By Jacob Bush
If you are trying to figure out whether all the files on your Windows system partition are correct and unmodified, and there are no hidden files added by viruses, rootkits or malware, you may find it a challenge to complete your task. If you have no ideas on how to do, just check out the methods given below.
1, Using disk imaging software
There are many excellent disk imaging freeware as well as commercial software, such as Acronis True Image and DriveImage XML, they provide you the ability to create an image of the entire system partition, when your system is clean, you can use these utilities to make an entire system backup, you can then revert your system to a former clean state in a few minutes at any time.
2, Using folder monitor program
There tools could monitor files activities on the windows system for you, when a file is created, changed or deleted, you will be notified and the event will be logged.
3, Using MD5 generator
MD5 is a commonly used cryptographic hash function to check the integrity of files and folders. If two files have the same MD5 checksum, they are believed to be identical.
You can create a snapshot of your system by generating and saving the MD5 hash value of all the files on your system partition, when you want to check the integrity of them, just boot up your computer with a live cd like Windows pe cd, then compute the md5 checksum of all files, and compare the result with the one you saved before.
If you are interested in this topic, check out the free md5 checker software for more useful information.
Article Source:
If you are trying to figure out whether all the files on your Windows system partition are correct and unmodified, and there are no hidden files added by viruses, rootkits or malware, you may find it a challenge to complete your task. If you have no ideas on how to do, just check out the methods given below.
1, Using disk imaging software
There are many excellent disk imaging freeware as well as commercial software, such as Acronis True Image and DriveImage XML, they provide you the ability to create an image of the entire system partition, when your system is clean, you can use these utilities to make an entire system backup, you can then revert your system to a former clean state in a few minutes at any time.
2, Using folder monitor program
There tools could monitor files activities on the windows system for you, when a file is created, changed or deleted, you will be notified and the event will be logged.
3, Using MD5 generator
MD5 is a commonly used cryptographic hash function to check the integrity of files and folders. If two files have the same MD5 checksum, they are believed to be identical.
You can create a snapshot of your system by generating and saving the MD5 hash value of all the files on your system partition, when you want to check the integrity of them, just boot up your computer with a live cd like Windows pe cd, then compute the md5 checksum of all files, and compare the result with the one you saved before.
If you are interested in this topic, check out the free md5 checker software for more useful information.
Article Source:
Tuesday, October 28, 2014
Cheap printer ink cartridges
Cheap printer ink cartridges: helps in cost cutting
by: Jean Colestock
With the increase in the usage of printers in businesses and office, demand for printer ink cartridges has gone up as well. At the same time, quality of the pages and the ink cartridges has become the essential factors in printing the pages. Many a times, people lookout for the original equipment manufacturer (OEM) ink cartridges whenever their printers fall short of ink. Why throw money down the drain, when you can buy cheap printer ink cartridges. When you go for the OEM ink cartridges, you are likely to spend huge amount of money on the printing needs. They will end up increasing your overall stationery costs. With the entry of the third party vendors producing cheap printer ink cartridges, the monopolistic market of the branded and genuine ink cartridges is almost shut. These cartridges are cheaper than the original ones. The ink cartridges are non bio-degradable. Every year, people from across the globe add into millions of tons of garbage in landfills. Used printer ink cartridges are dumped without thinking of re-filling. The cartridges are formed of high grade plastic and take up thousands of years before they break down. It is advisable to practice secure ink cartridges recycling to assist and save the environment from damage caused by the unsuitable disposal of the printer ink cartridges. Online world is one of the great places to purchase cheap printer ink cartridges.
There are several online suppliers who provide cheap printer ink cartridges. All you need to do is to woof on the one that provides you with the great services and best prices. The web world is a wonderful tool and it can help you put the cash back in your pocket. Saving money on cheap printer ink has never been easier, however, with the online advancements; you can be assured about the costs. Online traders have their websites with product information. Therefore, inspect some of the known online suppliers and also browse through the prices they are providing.
If you are looking out for cost cutting in your office stationeries, then it is advisable to go for cheap printer ink cartridges. Although, the digital era has taken over in offices across the globe, yet there are many such companies that rely on the documents. Printing is important in carrying out both business and office tasks. Whether you are looking to print mere documents like minutes of a meeting or other essential documents like financial reports or any other project progress report, you just cannot avoid printing. For all such tasks, you can bank on cheap printer ink cartridges.
These days, printer ink is a sore spot for consumers. The consumers are searching for ways to save money in buying ink. Hence, one can save a lot of money by buying cheap printer ink cartridges. Now start saving immediately just by ordering cheap printer ink from the online source.
| About The Author
Jean Colestock is the author of this article on cheap printer ink.
Find more information, about cheap printer ink here
|
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Monday, October 20, 2014
Learning How To Program In No Time
Learning How To Program In No Time
By Mikhail GordonAre you considering learning how to program? Maybe you've seen a movie that has spurred your interest. Or perhaps you have come to the inevitable realization that programming fundamentals are extremely useful in almost any occupation, be it technology or other. Through an internet search you'll find a plethora of information and resources that promise you competent programming skills. I personally prefer reading hard copy books to get my information. Here are some things that you should keep in mind when searching for some good programming books.
- Author's Experience: Does the author of the book have sufficient experience in the programming languages that you want to explore? There is no use reading a programming book from a C+ guru if you want to learn Java. Sure, some of the basics are the same but ideally, you want an author that can relate to the language you want to learn.
- One-Language Book: This tip goes hand-in-hand with the tip above. You want a good programming book that focuses on one language. Take a look at the book's table of contents to make sure that they match up with what you want to learn.
- Publishing Date: While many of the basics of programming have remained the same, technology has definitely evolved. Ideally, the programming book that you find will have been published within the last couple of years. If you do pick up an older edition be sure to keep in mind that much about programming has changed in recent years.
- Price: A chief concern with any purchase, and buying a programming book is no different. Fact is that there are tons of free resources on the internet that could teach you the basics, and although I love a hard cover, I'm not paying an unreasonable price for any book. You'd be better off trying a used book store or searching Amazon for a discount price.
- Beginner Friendly: Grab a book that is actually intended for beginners. It will usually tell you, right on the cover, if it is. As much as everyone wants to be the next Mark Zuckerberg some of us just aren't on that level yet. Take baby steps and I'm sure that you'll be programming masterpieces in no time.
This article is to get you started on your programming journey. Check out more in-depth reviews of the best books for programming [http://www.freetechstuff.net/best-books-for-programming].
Article Source: http://EzineArticles.com/?expert=Mikhail_Gordon
http://EzineArticles.com/?Learning-How-To-Program-In-No-Time&id=6343122
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In the ever-changing world of technology, learning how to program will be essential to staying ahead of the curve. This article aims at helping readers find the best books for programming.This book aims to help the layman know what he's getting himself into when he decides that they're going to learn how to program, to help him reach a milestone in his programming goals as quickly as possible, without skipping any major aspect of programming.
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