Saturday, July 31, 2010

Naming

The first known publication of the term "mouse" as a pointing device is in Bill English's 1965 publication "Computer-Aided Display Control".[2]

The Compact Oxford English Dictionary (third edition) and the fourth edition of The American Heritage Dictionary of the English Languageendorse both computer mice and computer mouses as correct plural forms for computer mouse. Some authors of technical documents may prefer either mouse devices or the more generic pointing devices. The plural mouses treats mouse as a "headless noun".

Two manuals of style in the computer industry—Sun Technical Publication's Read Me First: A Style Guide for the Computer Industry andMicrosoft Manual of Style for Technical Publications from Microsoft Press—recommend that technical writers use the term mouse devicesinstead of the alternatives.[citation needed]

Mouse (computing)

In computing, a mouse is a pointing device that functions by detecting two-dimensional motion relative to its supporting surface. Physically, a mouse consists of an object held under one of the user's hands, with one or more buttons. (Although traditionally a button is typically round or square, modern mice have spring-loaded regions of their top surface that operate switches when pressed down lightly.) It sometimes features other elements, such as "wheels", which allow the user to perform various system-dependent operations, or extra buttons or features that can add more control or dimensional input. The mouse's motion typically translates into the motion of a cursor on a display, which allows for fine control of a graphical user interface.

The name mouse originated at the Stanford Research Institute and derives from the resemblance of early models which had a cord attached to the rear part of the device (suggesting the idea of a tail) to the common mouse.[1]

The first marketed integrated mouse, shipped as a part of a computer and intended for personal computer navigation, came with the Xerox 8010 Star Information Systemin 1981. However, the mouse remained relatively obscure until the appearance of theApple Macintosh. The use of mice with desktop computers is now ubiquitous and they are widely available for separate purchase.

As food

Mice are a staple in the diet of many small carnivores. Humans have eaten mice sinceprehistoric times and still eat them as a delicacy throughout eastern Zambia and northernMalawi,[6] although they are no longer routinely consumed by humans elsewhere. They are an excellent seasonal source of protein.

In various countries mice are used as food[7] for pets such as snakes, lizards, frogs,tarantulas and birds of prey, and many pet stores carry mice for this purpose. Some countries, such as Germany and the United Kingdom, have banned the practice of feeding live mice, citing ethical concerns regarding both predator and prey.[8]

Common terms used to refer to different ages/sizes of mice when sold for pet food are "pinkies", "fuzzies", "crawlers", "hoppers", and "adults".[9] Pinkies are newborn mice that have not yet grown fur; fuzzies have some fur but are not very mobile; hoppers have a full coat of hair and are fully mobile but are smaller than adult mice. Mice without fur are easier for the animal to consume, however mice with fur may be more convincing as animal feed. These terms are also used to refer to the various growth stages of rats (see Fancy rat).

Nutrition

In nature, mice are herbivores, consuming any kind of fruit or grain from plants.[5] Due to this, mice adapt well to urban areas and are known for eating most all types of food scraps. In captivity, mice are commonly fed commercial pelleted mouse diet. These diets are nutritionally complete, but they still need a large variety of vegetables. Food intake is approximately 15 g (0.53 oz) per 100 g (3.5 oz) of body weight per day; water intake is approximately 15 ml (0.53 imp fl oz; 0.51 US fl oz) per 100 g of body weight per day.[4]

As pets

Many people buy mice as companion pets. They can be playful, loving and can grow used to being handled. Pet mice should not be left unsupervised outside as they have many natural predators, including (but not limited to) birds, cats and dogs. Male mice tend to have a stronger odor than the females. However, mice are careful groomers and as pets they never need bathing. Well looked after mice can make ideal pets. Some common mouse care products are:

  • Cage – Usually a hamster or gerbil cage, but special mouse cages are now available.
  • Food – Special pelleted and seed-based food is available. Mice can generally eat most rodent food (for rats, mice, hamsters, gerbils, etc.)
  • Bedding – Usually made of hardwood pulp, such as aspen, sometimes from shredded, uninked paper or recycled virgin wood pulp. Usingcorn husk bedding is avoided because it promotes Aspergillis fungus, and can grow mold once it gets wet, which is rough on their feet.

Subgenera

All members of the Mus genus are referred to as mice. However, the term mouse can also be applied to species outside of this genus. Mouse often refers to any small muroid rodent, whilerat refers to larger muroid rodents. Therefore these terms are not taxonomically specific. For simplicity, only the rodent subgenera belonging to the Mus genus are listed here.
Genus Mus - Typical mice
Subgenus Coelomys (East Asia)
Subgenus Mus (Eurasia to North Africa, except for the House mouse which is worldwide.)
Subgenus Nannomys (Sub-Saharan Africa)
Subgenus Pyromys (East Asia)
Subgenus and species Mus lepidoides

Laboratory mice

Mice are common experimental animals in biology and psychology primarily because they are mammals, and also because they share a high degree of homology with humans. They are the most commonly used mammalian model organism, more common than rats. The mouse genome has been sequenced, and virtually all mouse genes have human homologs. They can also be manipulated in ways that would be considered unethical to do with humans (note Animal Rights). A knockout mouse is a genetically engineered mouse that has had one or more of its genes made inoperable through a gene knockout.

There are other reasons why mice are used in laboratory research. Mice are small, inexpensive, easily maintained, and can reproduce quickly. Several generations of mice can be observed in a relatively short period of time. Mice are generally very docile if raised from birth and given sufficient human contact. However, certain strains have been known to be quite temperamental. Mice and rats have the same organs in the same places, just different proportions.