Linux Training-Running Linux From a Live CD/ DVD by Clyde Boom
One of the easiest, fastest and fun ways to get Linux training, and get experience working with Linux, is to use a Linux live CD /DVD. This is just a single CD or DVD that contains the complete Linux operating system! You just put the Linux live CD /DVD in your drive, start your system, and the... This is an excellent way to learn Linux and get hands-on Linux experience at the same time. ... But on some systems, you need to change a system setting or hold down a key, like the letter "c" to boot from a Linux live CD /DVD.

HasYour Computer Hard Drive Ever Crashed? Are You Challenged by Backups? by Jimmie Newell
The following scenario’s have probably been repeated thousands of times, on computer systems of all kinds and sizes, operated by all levels of users from complete novice, to expert user. · You log on and your computer will not boot to your operating system. ... However at this particular time, backup software was not real easy to use, and choosing the media to backup to required the installation of more hardware. ... As computer users we have all been admonished time and time again to backup our work on a regular basis, as insurance against losing data.

How To Maintain Accurate Time On Your PC by David Evans
PC's have internal real time clocks designed to maintain system time. The internal clocks rely on relatively low-cost crystal oscillators, which are notoriously inaccurate. In many cases PC system time can drift by several minutes each day. This article describes various methods of maintaining a... Below is a list of popular Internet based public access NTP Server references: time.nist.gov - US based time reference ptbtime1.ptb.de - German time reference ntp.my-inbox.co.uk - UK time reference canon.inria.fr - French time reference clock.isc.org - Canadian time reference Windows XP...

Do I Really Need To Clean The Windows Registry? by Bill Stafford
The registry file in the Windows operating system is a large file or database where the Windows Operating system stores all the parameters it needs to operate properly. Every time a program is accessed or called up, the registry file is read, and from there all the various parameters and... Since the entries in the registry are all necessary for the smooth operation of the operating system, inadvertently deleting the wrong entry may end up crippling the system and may cause some real problems for the user.

Computer Data Recovery – Step by Step by Natalie Aranda
Ever wonder how computer data is recovered? What happens to a file when it gets deleted from the recycle bin? How data recovery programs work? How does computer data recovery take place? To understand how computer data recovery happens we must first understand what happens when a data file is... The Operating System knows what file is stored where. ... When a file is deleted, the Operating System, like a robot, just removes the file from its list without actually removing it from the hard disk. ... So, even if a file is removed from the Operating System its still there on the hard disk and...

Do You Need a Doctor For Your Computer? by Gary A J Martin
Over time, errors and bugs slowly creep into a computer's system, making it run slowly and badly. Its just an unfortunate fact of computer life. What happens is, your registry software (the registry is a central database of information needed to configure your computer system for general... This leads eventually to application and operating system crashes. ... It is a little known but very real problem all computer users will face sooner or later. ... You don't want to buy registry fix software and find difficultly operating it.

Different Types of Computer Memory by Michael Russell
Computer memory refers to either of two types of computer storage. Volatile memory refers to RAM that needs to be constantly refreshed to be retained. Static memory is permanent storage that is retained even after the computer is turned off. RAM or Random Access Memory is volatile memory that is... When you boot up the computer, in other words turn it on, the operating system or part of it is loaded into the RAM along with a variety of utilities required for normal operation. ... As little as 2MB(megabytes) total will suffice for most DOS( disk operating system-a proprietary program that...

Computer Games by Max Bellamy
A keyboard, mouse and joystick are all you need to play computer games. You can add headphones and speakers to get sound. You can also go for driving wheels if you are playing racing games. You need the latest version of the Windows operating system to install computer games on your computer. ... Memory, hard drive space, Internet connection speed, operating system, CPU speed and video card memory – all need to be in proper order so as to facilitate smooth and hassle-free installation of computer games.

Virtual PC - Slicker Than Oil by Don Watkins
When I was younger and worked on mainframes I was always working with pretty mundane stuff; batch processing for the most part with what little online work being done with smaller computers (Buker-Ramo if you must know) with the mainframes running DOS/VSE. ... That is it wasn't really an operating system but an environment whereby multiple operating systems could run on a single machine, each with protected access to the full instruction set and, most importantly, protected from each other. ... Fire up Virtual PC and a console comes up that allows you to select an existing guest operating...

History of the Computer: Real-time Systems, Part 1 of 2 by Tony Stockill
We have mentioned before, in the history of the computer series, that digital computers have been developed as general purpose machines. You buy one of our systems, and you can use it to run a bank, operate the lottery, build a car, or control freight shipments for an airline. ... NON REAL TIME SYSTEMS It may be easier to understand the concept if we look at what is NOT a Real-time system. ... The name says it all - everything this system does with the data you give it, it does right now, in real time.