CyberPower CP1000AVRLCD UPS

There are many important Computer accessory, the UPS system is one of the most impirtant accessory which directly protect your computer to made it last longer and also protect you important data on your computer. So I would like to recommend you a new high easy use technology of the UPS system --CyberPower CP1000AVRLCD UPS--.

This CyberPower CP1000AVRLCD UPS is one of the amazing UPS as it has a LCD dianostic screen for the showing of the function and the progress of the UPS system. The screen will show a real time performance which enable the user to easily made their changes or function. CyberPower CP1000AVRLCD UPS guard your computer with a blackout, spikes, surges and also provide a additional power supply for your computer when a complete loss of power occur so that your computer wont be cut off a may be cause a loss in your data. CyberPower CP1000AVRLCD UPS also equiped with a full data line protection.

Logitech VX Nano Cordless Laser Mouse for Notebooks

This Logitech VX Nano Cordless Laser Mouse is a very special mouse with a ultra small USB wirless dectecter attatched to the notebook. This computer mouse with the nano size wireless detecter is very light in weight and have a very high portability. It also can carry together with the laptop by attached the wireless detecter to the notebook as it is very small. Logitech VX Nano Cordless Laser Mouse has a very stylish design to made it one of the modern computer mouse. The



Logitech VX Nano Cordless Laser Mouse also has high precision in taking up command by scrolling the computer mouse. This computer mouse is also adjustable in its sesitivity, scolling and buttons depend on the user requirement. This ensure the maximum leisure experience.

Logitech VX Nano Cordless Laser Mouse also has a coreless freedom. Enable this computer mouse to take up command very fast and precise. It also has a forward and backward buttons to made it very convenient when surfing the internet. There is also a carrying case for the mouse body to help further protect this fastinating computer mouse.


IN Overall, it has a very high precision, affordable price, portable and convenient for the user. Above all it is compatible with both PC and mac.

Mouse part...

There are many main part of the computer mouse but, the outer part would be the "body", "tail" and the under part of the mouse. The mouse's "body" is the very outer part of the computer mouse body. It is use as a shell of the mouse. Normally made out of plastic as it is light in weight and cheap to produced. However other materials can still be use as a body part for the computer mouse such as metal or ,the same as the prototype computer mouse, wood, but the truth is that it is depend on the user like and its function as different materials have different strong point and weak points.

The next part is the "tail" part. In this part it call the tail as it look like the tail of the mouse, but it actually is the electrical cable attached to the end of the computer mouse to your computer. Which is directly connected to the CPU of your computer. The computer mouse can be connected to the CPU by using a port.

In computer mouse port are also important as it can determine the speed of the mouse and hoe sensitive it is. It also can provide more comfortable and efficiency. There are 3 main type of port which are RS-232C serial port, P S/2 port and lastly USB interface. There are many different advantages to each one of them and there are also some weak points too. However the most common port that we use today is USB interface. Even though USB interface is widely use, there is a newer type of connection which is wireless connection. This type help promote the comfortable of using computer mouse as it is very comfortable to carry it around, howver it tend to cost more than other type.

Now come to the underside of the computer mouse. On the underside of the mouse, it is cover with a plastic usually same materials with the body. There is a hole on the underside which can insert the ball such that some of its are outer side of the mouse. The rolling ball is use to detect the movement of the computer mouse and sent a signal to the CPU and the command is reach to the screen. However there is another type of underside as there might not be any rolling ball but there is a infrared light signal from the light-emitting diode. The dark and light are translated by photo transistors into electrical pulses that go to the interface integrated circuit (IC) in the mouse. The pulses tell the IC that the ball has tracked left-right and up-down, and the IC instructs the cursor to move accordingly on the screen.

Who invented the computer mouse....?

"It would be wonderful if I can inspire others, who are struggling to realize their dreams, to say 'if this country kid could do it, let me keep slogging away'." - Douglas Engelbart

The first prototype of computer mouse was invented in the 1963-1964. The one who invent this computer mouse was a man named Douglas Engelbartas. The invention was cause by him because he was trying to find a more promising way to to point and click on a monitor screen.

However the first mouse that he was created was very huge in size and uncomfortable. It was craved out of wood and it only has one button to begin with. It works by using two wheels made out of metals which in turn made a contact with the working surface. Above all he name it to be a computer mouse because the main idea was resemble by a mouse. "It was nicknamed the mouse because the tail came out the end," Engelbart revealed about his invention. Douglas Engelbart was awarded the 1997 Lemelson-MIT Prize of $500,000, the world's largest single prize for invention and innovation. In 1998, he was inducted into the National Inventor Hall of Frame. However in the 1972 the ball-computer mouse was invented by a man named Bill English. It is more convenient to use a ball-computer mouse rather than the old version computer mouse because of the ball that is use instead of the two metal wheels. This promoted its movement as it is more free to move in all direction rather that limited direction of the old version computer mouse.

Mouse

Mouse also important!!!

Mouse has a high impact on nowaday computer user as it is one of the competitive market. It is also very active in the market as many company are trying to develop new, unique and more efficient to the market. Mouse has reduced the frequent use of the computer keyboard but especially has simplified the user to access to various functions.
There is mechanical mouse requires a ball to move the cursor on the screen. To get more efficacies with this type of mice, a flat surface named mouse pads is necessary.

The optomechanical or optical-mechanical mouse is a combination of the optical and the mechanical technologies. It uses a ball but detects the mouse movement optically. It is now the most commonly used with PC.

The optical mouse uses a laser; precisely an optical sensor to help detecting the mouse’s moving. More expensive than the two other types, the optical mouses offer more precision and speed and even can be used on any surface.

However mouse has to be connected to your PC. To transmit data to the computer three types of interfaces can be used...

The RS-232C serial port connects the mouse to the computer through a thin electrical cord using a 9 pin connector.

The PS/2 port do the same as the first interface mentioned but using a 6 pin connector.

The USB interface receives various types of mice through a USB connector. One of these advantages to use the USB mouse is the possibility to plug-and-play (it) in front or in the back of your computer case, when it contains these kinds of port.

On the far end, one of the most interesting mouse technologies invented is the wireless mouse which relies infrared, radio signals or Bluetooth to communicate with the computer. Using no cord, the wireless mouse contains a transmitter to send information to a receiver itself connected to the computer. The wireless mouse is usable from 2m to 10m of the computer.

UPS

Why UPS?
If you have the following problem of Over voltage, Under voltage, Surge, Over shoot, Noise, Sags, Short interruption and Blackout I suggest that the most effective way to help you protect your computer is to use UPS.
An uninterruptible power supply (UPS), also known as a battery back-up, provides emergency power and, depending on the topology, line regulation as well to connected equipment by supplying power from a separate source when utility power is not available. It differs from an auxiliary or emergency power system or standby generator, which does not provide instant protection from a momentary power interruption. A UPS, however, can be used to provide uninterrupted power to equipment, typically for 5–15 minutes until an auxiliary power supply can be turned on, utility power restored, or equipment safely shut down.UPS is typically used to protect computers, data centers, telecommunication equipment or other electrical equipment where an unexpected power disruption could cause injuries, fatalities, serious business disruption or data loss.


Type Of UPS
1.The Standby UPS
The Standby UPS is the most common type used for Personal Computers.When the primary source fail the transfer switch must operate to switch to the backup power.source. The inverter only starts when the power fails, hence the name "Standby." High efficiency, small size, and low cost are the main benefits of this design. With proper filter and surge circuitry, these systems can also provide adequate noise filtration and surge suppression.
2.The Line Interactive UPS
The Line Interactive UPS is the most common design used for small business, Web,
and departmental servers. When the input power fails, the transfer switch opens and the power flows from the battery to the UPS output. This design provides additional filtering and yields reduced switching transients when compared with the Standby UPS topology. The Line Interactive design usually incorporates a tap-changing transformer.
3.The Standby-Ferro UPS
The Standby-Ferro UPS was once the dominant form of UPS in the 3-15kVA range. This design depends on a special saturating transformer that has three windings (power connections). In the case of a power failure, the transfer switch is opened, and the inverter picks up the output load. Even though it is a standby UPS by design, the Standby-Ferro generates a great deal of heat because the Ferro-resonant transformer is inherently inefficient. These transformers are also large relative to regular isolation transformers; so standby-Ferro UPS are generally quite large and heavy.
4.The Double Conversion On-Line UPS
This is the most common type of UPS above 10kVA.In this design both the battery charger and the inverter convert the entire load power flow , resulting in reduced efficiency with its associated increased heat generation. This UPS provides nearly ideal electrical output performance. But the constant wear on the power components reduces reliability over other designs and the energy consumed by the electrical power inefficiency is a significant part of the life-cycle cost of the UPS. Also, the input power drawn by the large battery charger is often non-linear and can interfere with building power wiring or cause problems with standby generators.
5.The Delta Conversion On-Line UPS
This UPS design is a newer, 10 year old technology introduced to eliminate the drawbacks of the Double Conversion On-Line design and is available in sizes ranging from 5kVA to 1.6MW. Under conditions of AC failure or disturbances, this design exhibits behavior identical to the Double Conversion On-Line. Delta Conversion technology saves energy by carrying the package only the difference (delta) between the starting and ending points. The Double Conversion On-Line UPS converts the power to the battery and back again whereas the Delta Converter moves components of the power from input to the output.