| A | B |
|---|
| Active matrix | laptop computer display which gives a sharper image than passive matrix because of the use of thin film transistors to change the liquid crystal display cells |
| Batteries | power source for plaptop that makes them portable; NiCad, NiMH, and Lithion Ion are popular portable power sources |
| Card services | software support that allows PC card applications to communicate with PC cards |
| CardBus | the 32-bit version of PC cards |
| Docking station | an attachment for a laptop that will have connectors for external devices such as printers, keyboards, and mice |
| Dongle | device used with PC cards that do not have ports built into them to connect them to a network or phone cable |
| Handheld computers | small computer that can be held in one hand |
| Handheld Operating Systems | compact operating system used on PDAs |
| Hot-swappable | the ability to add or remove a component from a computer while the power is on |
| LiIon | Lithium Ion; rechargeable battery for laptop that has no memory effect and is slow to discharge when not in use |
| Ni-Cad | Nickel-Cadmium; type of battery for a laptop in which older models had a memory effect where if they were only partially drained and then recharged that they would lose the capacity to be fully charged |
| Ni-MH | Nickel Metal Hydride; battery type similiar to NiCAD for use in laptop computers that can have 2 or 3 times the capacity of the same size NiCAD battery |
| Notebook | also known as a laptop computer; miniature computer weighing less than 6 pounds and having miniaturized parts such as LCD display, keyboard and hard drive to enable it to be portable |
| Passive matrix | LCD screen that uses a single transistor to control a whole row of cells in the liquid-crystal layer |
| PC card | also known as PCMCIA; removable expansion card for a laptop computer |
| PCMCIA | Personal Computer Memory Card Industry Association; removable expansion card for a laptop |
| PDA | Personal Destop Assistant; hand-held computer generally used as a personal organizer |
| Port replicator | device is used to connect multiple external devices to a laptop computer using one connector |
| Portable computer | lightweight computers that include the laptops, notebooks, and pocket computers |
| Socket services | software that manages the controller card for PC cards |
| touch pad | input device ona laptop computer that is a flat area just below the keyboard on which the motion of a finger causes the cursor to move around on the screen |
| touch screen | type of display that accepts input from your finger or a stylus pressing on it |
| trackball | inverted mouse-like input device where you roll a ball on the top of the device to move the cursor around on the screen |
| type I PC card | PCMCIA card that is 3.3 mm thick and is typically used for laptop memory |
| type II PC card | PCMCIA card that is 5 mm thick and is typically used for network cards and modems; most laptops accept 2 of this type of card |
| type III PC card | PCMCIA card that is 10.5 mm thick and is typically used for removable laptop hard drives |
