The software on flash ROM can be overwritten by new software. Advanced Configuration and Power Interface powers up a system by an external device, like a keyboard. Advanced Power Management is only used for laptops that don't support Advanced Configuration and Power Interface. Another feature BIOS and OS use is Plug and Play, it makes installation of new hardware devices
For example, a desktop is usually cheaper than a laptop. It is easier to upgrade, and to repair. A desktop computer doesn’t get stolen very much compared to a laptop computer. And it has more hard drive space than a laptop. Based on the similarities and differences of these computers, the users can determine which one is
Laptops, on the other hand, come with the output device firmly affixed to the rest of the unit. Laptops primarily use gas plasma or any similar projection technology, liquid crystal display (LCD) and light emitting diode (LED). Because of the slimmer design and lesser energy consumption, LCD monitors are rapidly replacing the venerable CRT (Allan, 124). This paper will examine the history of monitors, explaining how video cards have altered the needs for monitors. Advances in monitor technology have facilitated the introduction and adoption of superior monitors.
Furthermore, laptops have internal software storage capabilities, and some laptops are enclosed for high performance gaming. The laptop has several main parts, the monitor, keyboard, mouse, computer memory, hard disk, motherboard, and the central processing unit. The key board is a device that is used to input information, and it can be compared to a typewriter, because it has letter keys and symbols. Also, these keys transmit electrical signals, which register inside the keyboard’s circuitry. The Mouse is a plastic device that is used to point objects and to detect two dimensional motion.
The motherboard is the main circuit board that allows all the pieces to connect and talk to one another. Everything plugs into the motherboard, either directly or indirectly, and the motherboard routes the data where it needs to go. Some motherboards also have built-in video cards, sound cards and other connectivity, reducing the need for additional hardware. So if you know what computers consist of, you can earn money by making computers. No one can say for sure where he will be working in the future.
Nowadays, computers are smaller and take up a lot less power. It is said that they could be made small enough to fit into a wrist watch and be powered from the battery of the watch. They could also store more memory than before. You can add games, music, pictures, go on the Internet and surf the web, play online games, and so on. Not only does a computer help for personal needs, it is ‘embedded’ in other devices to help them work, such as aircraft, robots, digital cameras, and even toys for children.
Currently the Pentium chip or processor, made by Intel, is the most common CPU though there are many other companies that produce processors for personal computers. Examples are the CPU made by Motorola and AMD. With faster processors the clock speed becomes more important. It depends on the circuit board that the chip is housed in, or the motherboard, as to whether you are able to upgrade to a faster chip. The motherboard contains the circuitry and connections that allow the various components to communicate with each other.
It does so by connecting to a cellular network provided by a mobile phone operator, allowing access to the public telephone network. By contrast, a cordless telephone is used only within the short range of a single, private base station. In addition to telephony, modern mobile phones also support a wide variety of other services such as text messaging, MMS, email, Internet access, short-range wireless communications (infrared, Bluetooth), business applications, gaming and photography. Mobile phones that offer these and more general computing capabilities are referred to as smart phones. All mobile phones have a number of features in common, but manufacturers also try to differentiate their own products by implementing additional functions to make them more attractive to consumers.
If you want to connect more, then you need a special device called a hub, which acts like a distribution and link point. Cables from the different computers’ LAN cards meet at the hub. If you want to connect your LAN to the Internet, then you need a router instead of a hub. Using a hub is the most common and easiest way of setting up a LAN. There are however other network layouts, called topologies.