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Brief History Of Databases
Number of words: 1723 - Number of pages: 7.... model was developed stressing the
quantitative aspect of management by highlighting a data bank, a model bank, and
a measurement statistics bank. All of these factors will be influential on
future models of storing data in a pool. According to Martine, in 1981, a
database is a shared collection of interrelated data designed to meet the needs
of multiple types of end users. The data is stored in one location so that they
are independent of the programs that use them, keeping in mind data integrity
with respect to the approaches to adding new data, modifying data, and
retrieving existing d .....
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You've Got Mail
Number of words: 395 - Number of pages: 2.... People in one country can talk to people in another country over the telephone and even see them, in real time, through video conferencing. What people need to communicate is no longer limited by the size of the paper, length of the tape, or cost of the call.
As with all forms of communication, people are always concerned with how secure things are. With traditional forms of communication, even with the highest level of security, things are easily stolen - letters and memos can be easily copied; audio and video recordings can be quickly recorded; hard copies of any kind can be easily de .....
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How To Maintain A Computer System
Number of words: 384 - Number of pages: 2.... and unpainted metal surface such as the power supply.
This will help to discharge any static electricity that could damage internal
components.
Now you should periodically, defragment your hard disk. Defragmenting
your hard disk reorganizes files so they are in contiguous clusters and makes
disk operations faster. Defragmentation programs have been known to damage
files so make sure your disk is backed up first.
A good thing to do now would be to protect your system from computer
viruses. Computer viruses are programs designed to infect computer systems by
copying themselves into other .....
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Fifth Generation Computers
Number of words: 1255 - Number of pages: 5.... with 400-600 Mhz processors that can multi-task at an alarming rate. Intel has just started the release phase of it’s new Pentium III-800MHz processor. Glenn Henry is
quoted to say “Megahertz is all people care about” and this is too true. Sys Technology recently came out with what they claim as the “fastest commercially available PC”. This computer runs at an astonishing 1000 Mhz or 1 Ghz. This computer is appropriately named the Cold-Fusion 1000 due to the KryoTech refrigeration unit that runs coolant through a pipe over the CPU to keep it at a cool -40 degrees Celsius .....
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Radio - Making Waves In America
Number of words: 1502 - Number of pages: 6.... improved upon the experiments and equipment of Hertz and others working on radio transmission. He created a better radio wave detector or cohere and connected it to an early type of antenna. With the help of his brothers and some of the neighborhood boys he was able to send wireless telegraph messages over short distances. By 1899 he had established a wireless communications link between England and France that had the ability to operate under any weather conditions. He had sent trans-Atlantic messages by late 1901, and later won the Nobel prize for physics in 1909.
Radio works in a very .....
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Computers: Productive Tools In Our Lives
Number of words: 795 - Number of pages: 3.... this so called sophisticated, next generation equipment, you
need some sort of software. Software is a set of instructions to the C.P.U. from
a source such as a floppy disk, a hard drive or a CD - ROM drive, in zillions of
1's and 0's. Each of these tiny little instructions makes up a bit. Then they
assemble to form a byte. Bytes make up a program, which you run to use the
computer's various applications.
Now that you know more about computers than Einstein did, let me tell
you something more about them, so that you will beat the President in the field
of computing. In your computer, you .....
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Ethernet
Number of words: 1260 - Number of pages: 5.... of putting the card in
the computer. Make sure you unplug the power supply cord from the back of
the computer. Every computer opens in its own unique way. Most will have
screws in the back that hold the case cover. Unscrew them and slide the
case off. Some might have to be tugged and pulled roughly, but don’t worry,
it will come off.
Which slot is for your card? I told you earlier that things inside
are very logical. The following will prove my point. The PCI slot is
smaller than the ISA slot plus it is white in contrast to the ISA which is
black. Do not get discouraged when y .....
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Telecomuting And Us
Number of words: 1088 - Number of pages: 4.... Is one day home enough for the employee? Or, too little? How does the employer decide how many days to allow? Does the employee's job lend itself well to telecommuting? Some jobs, obviously, can't be accomplished using a telecommuting format. Does the employee have a good track record for working unsupervised? This relates back to readiness levels. An employee who isn't performing at a high readiness level should not even be considered as a candidate for telecommuting. All of these questions and many more must be answered on a case by case basis.
This particular venture into creative schedu .....
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Should This Business Update To Windows 2000 From Windows 98
Number of words: 455 - Number of pages: 2.... issues.
Once if you then decide to update, do it when you can devote time to the changeover. If you have multiple machines, make the change in stages running the old operating system during the transition.
First of all, the first thing is to determine that Windows 2000 is compatible with your machines. According to Windows 2000¡¦s description, ¡§you need, at minimum, a PC with a 133-MHz Pentium-compatible CPU, 64 megabytes of RAM and one gigabyte of disk space. It is better with a faster CPU (300 MHz or better) and several gigabytes of disk space. A bit more memory would be nic .....
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How Guns Work
Number of words: 951 - Number of pages: 4.... high pressure
gas. The gas pushes on every surface it encounters, including the bullet in
front of it and the base of the gun barrel behind it. The increase in pressure
caused by the gases causes the bullet to be forced into the barrel hence causing
the bullet to come out the muzzle at very high speeds. Once the bullet is fired,
it remains in motion from its momentum. The momentum will carry the bullet
until it strikes an object or gravity pulls the bullet towards the earth.
Firearms change potential chemical energy into kinetic energy in the actual
firing of the gun. Many peopl .....
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