What is the CMOS and what is the BIOS on a computer?

CMOS (Complementary Metal Oxide Semiconductor) is a specific technology which is utilized in making semiconductors. These semiconductors are also called integrated circuits and include processors, chipset chips, DRAM, etc. Various types of batteries are used for driving the CMOS. CMOS checksum is sometimes used as an error-detecting code.

The BIOS setting helps you to save the work in your computer; it is the non volatile memory, different from the other type of memories and is called CMOS memory. Each time you switch off the computer, the CMOS memory does the needful for you.

BIOS mean Basic Input/Output System. Being the lowest level software in a computer, BIOS acts as an interface between the operating system and the hardware. The function of the BIOS is to provide access to the system hardware. The creation of the higher operating system like DOS, Windows 95, control of computer’s hardware settings, booting up the machine are all done by the BIOS.

Once the BIOS setting is changed, the checksum is rendered by totaling all the bytes in the CMOS memory and then stacking away the lowest byte of the sum. Every time the system is booted, it recalculates the checksum and contrasts it to the stored value. If the two values the different then your system would let you know that CMOS has been corrupted.

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What is a palmtop?

Palmtop is a tiny version of the normal computer that we use everyday. It is a small computer that literally fits in your palm. Therefore it is called palmtop. Since the size of the palmtop is very small, the scope is also very limited in this case. Those people who require moving away from place to place may use this palmtop since there is lesser amount of hassle in carrying this. Palmtops are best used instead of phone books and calendars. It has often been seen that some palmtops use pen instead of keyboard for data enter. Hand-held computers or PDA’s are those palmtops which use pen for entering the data instead of keyboard.

Since palmtops are extremely small in size, disk drives are not included with this set. However, many palmtops contain PCMCIA slots. The PCMCIA slots can be used to insert disk drives, modems, memory, and other devices.

Some Palmtops are also known as PDA’s. The hand-held computers and pocket computers are very handy and can easily.

There is however one disadvantage of this computer. Although its battery has long life the functions are highly reduced due to its small size. The price of this computer is also exorbitant.

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Which company makes the best laptops?

Basically, for buying a computer, you should first fix up a budget and assess the reason for what you would be using it. According to market analysis, Dell laptops help you in the long run. Lenovo and HP are also of good quality.

Investing in Alienware is helpful but they are generally quite expensive. If you want to go for Killer Notebooks, then according to the market range, they are far more expensive than the others, but they will give you quality and performance. If you want one that is light and good looking, your best bet is the Apple MacBook Air, a laptop which can fit into a Manila envelope!

If you are going for a medium range your choice should be Asus with their G1. Actually, almost all the above companies hire small companies to do their work.

The companies assemble the laptop parts with the aid of other companies. As for example, IBM and Lenovo collaborated with each other and Lenovo has now captured a good portion of the market. So, there’s no such company that excels in making the best laptops.

You should think about your budget first and then about the reasons for what you are going to use it. Finally you can go for buying your laptop from any of the above companies.