Just like any other battery there are cells inside a laptop battery. Each cell is typically 1.5 volts and a number of cells are arranged in series and connected in parallel to deliver optimum power to the laptop or device. A number of cells are connected together to forma a battery. Connecting a number of cells in parallel means to connect all the negative terminals to each other and positive terminals likewise this increases the power delivering capacity of the battery but not the voltage. Then a number of these batteries are connected in series (negative to positive terminals to raise the voltage). This is done to optimize the voltage level of the battery. These cells are controlled by an internal electronic circuit in the battery.

The internal electronic regulator is the unique property of a laptop battery. This circuit regulates the flow of charge into and out of each internal cell in the battery thus ensuring that each cell has an equal charge at all time in turn ensuring the optimum use and long life of each cell. It also ensures that the cells do not over charge.

The plates of each cell react with the electrolyte (chemical/acid) in the battery causing a flow of electrons from the negative to positive terminals and a flow of ions from the positive to the negative terminal this is the flow of current as we know it. This flow continues until the electrolyte loses its acidity. When the battery is charged the ions are restored to their place in the cell and the electrolyte regains its acidity ready to generate electricity in the cell once again. This process is always the same irrespective of the type of battery.

The process of charging or discharging of the battery is controlled by hardware built into your laptop. This hardware ensures the proper functioning of the cells in the battery and warns you of the tile left before you need to recharge the battery. This indicator is displayed in the right bottom corner of the screen in most notebooks or laptops.

Though the laptop battery is rechargeable, like everything it does have a life span and cannot go on serving you for eternity. Proper care will ensure that the battery lasts longer than it would without the proper care. A battery will normally last between 500-700 charge cycles before it will need to be replaced with a new one. The number of charge cycles of the battery will depend on the usage of the laptop. The more often you need to charge your laptop the sooner you will have to replace the battery.

Every laptop model is designed to suit a particular function and so is the battery designed to match the power requirements of the laptop.  The design of the battery depends on the weight and size of the laptop. A small light-weight laptop will have its design defeated if the battery weighs more than the laptop itself, so the battery has to be designed to suit the model of the laptop.

Fact checking is something we all do. Spelling a person’s name correctly, addressing an envelope, or getting the correct phone number are examples of fact checking that occur in most workplace offices and home offices on a daily basis. Where do you keep these large reference books you use most often? Possibly you keep them on a bookshelf in your office if you are fortunate to have the room for a bookshelf. Maybe you keep them in another office, the office library or on another floor in your house if you work from home.

Desktop book racks and binder racks take up less space than a stack of books and add an elegant look to any office. At only 8 inches wide most desks can easily accommodate a book rack. You might have a crowded desk but assess the situation from the perspective of how often you must leave your desk in search of that reference book you need. The time you save will add up quickly when not leaving your desk to cross the room or go to another office in search of that elusive text. You will also notice the benefit of not having your creativity interrupted when you require the correct spelling of an obscure word or name.

Books last longer when cared for. The expense of most reference texts makes them an investment. Keeping books in a desktop book rack or binder rack rather than an unbalanced stack of books will help protect them from sudden spills or accidental falls to the floor. It will also make for a quick and easy visual of the titles because book racks and binder racks are tilted to display the spines at the best viewing angle. You no longer have to sort through that stack of books to get the right one.

Book racks work for most reference texts and will hold up to 16 inches of books. That could mean 16 one inch books or 5 three inch books, but they can also neatly hold fewer books because they have what is called a follow block or a floating bookend which slides and keeps your books standing upright when the rack is not full. The follow block can also be removed if you require the book rack to hold just one very large reference book open. This is an advantage when the book is very heavy and used often.

Binder racks work well for binders and other very large reference texts such as full size dictionaries, phone books, coffee table books, cookbooks or Atlases. They will hold up to 16 inches of binders and they are only 10 inches wide.

Regardless of which size of desktop shelving suits your requirements, they are offered in a choice of hardwoods such as Oak, Mahogany, Walnut and natural or dark Cherry. The function and elegant style of Success Image book racks and binder racks will be pleasing to the eye as well as to the productivity of the any office.

• ISBN13: 9780789736130
• Condition: NEW
• Notes: Brand New from Publisher. No Remainder Mark.

Product Description
Having sold more than 2 million copies over its lifetime, How Computers Work is the definitive illustrated guide to the world of PCs and technology. In this new edition, you’ll find detailed information not just about every last component of hardware found inside your PC, but also in-depth explanations about home networking, the Internet, PC security, and even how cell phone networks operate. Whether you’re interested in how the latest graphics cards power today… More >>

How Computers Work