IBM is one of the oldest computer manufacturers, and today they still hold firm in the market for laptops with their ThinkPad computers. IBM was among the first on the market for the personal computer, and in 1984 they pushed the evolution of personal computers on to mobile technology. International Business Machines now has a solid image to match its name with their sleek, black ThinkPad notebook computers. ThinkPads may not lead in the mass market demographics but they have a dedicated following in serious business users.

There is a small feature that sets them apart from the rest, a small red "joystick" planted as a pointing device amid the keys on the keyboard, along with a small touchpad. Many users like having that button within easy reach from the keys so they don't have to break rhythm from the keyboard. Today ThinkPad computers still have the dark design and feature the little red knob on the keyboard, but IBM offers a number of variations to meet a full range of utilities. They are cryptically named the Z, R, T, X and G series ThinkPad notebooks. IBM offers great deals on their ThinkPad computers and they keep customer service and customization as the top value to their customers.

The Z series of ThinkPads is built with a tough titanium case and a bright and sizable screen (up to 15.4"), a powerful CPU, and fast graphic hardware to give dazzling multi-media performance. ThinkPad R series notebooks is meant more for mainstream, but the common user will be more than pleased with the power and security. An available option is an Integrated Fingerprint Reader (a biometric device) that saves the user from remembering all of their passwords. The ThinkPad T is well balanced for performance and portability with a very lightweight chassis and storage options. However, the X series is even thinner and lighter and was designed to be extremely versatile for working outside of the office. The sturdy titanium cover keeps the components safe and the thin design keeps it convenient to bring with you wherever you go.

The final major series is the IBM ThinkPad G, with powerful specs and sturdy design. It's not quite as svelte and lightweight, but the model was meant to take on a heavy workload and to replace the desktop PC entirely. All of the models have built-in wireless networking capabilities, with some of the laptops featuring an antenna for picking up a strong hot spot signal. IBM has had a lot of competition over the years, and even with the PC clone war the giant technology firm has a good hold on the market for notebook computers.