An LCD works by producing an image using a liquid crystal material made of large, easily polarized molecules. The layers of the LCD panels together create the image. At the center of the layers is the liquid crystal material. Directly next to it is the layer responsible for providing color to the image you see. [...]
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The main difference between a CRT monitor and an LCD monitor is that an LCD monitor takes up much less desk space than a CRT monitor. Although a CRT monitor is lighter and requires much less energy to operate, but usually costs more. These are not the only features to compare though.
CRT monitors offer [...]
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For CRT monitors resolution is a measure of how many spots on a screen are addressable by software. Each addressable location is called a pixel. For LCD monitors the number of pixels on the screen is either called resolution or pixel pitch. CRT monitors are built to handle several resolutions while an LCD monitor uses [...]
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Keyboards connect to a PC using one of four methods:
DIN connector which is mostly outdated now.
PS/2 connector which is also known as a mini-DIN.
A USB port
Or a wireless connection.
DIN which is a acronym for a german word which means “German industry standard” is round and has 5 pins. The most common PC connector though is [...]
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Keyboards use either one of two common technologies. One is the keys make contact with foil which is called a foil contact. The other is when the keys make a metal contact. On a foil contact keyboard when you press the key two pieces of foil make contact and close a circuit. After you press [...]
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Now a days keyboards are classified by two designs, a traditional straight design or a newer ergonomic design as shown below.
These ergonomic keyboards are designed for safe and comfortable interaction between human and machine. Ergonomically safer keyboards keep your wrists high and straight. Some users fine it more comfortable, others do not.
Keeping the wrist in [...]
Filed under: Information | Tagged: carpal tunnel syndrome, CTS, keyboards, repetitive stress injury, RSI, work, working, working hazards | No Comments »
