Microprocessor: also known as the central processing unit (CPU), the microprocessor is the central 'brain' of the tablet, controlling all functions and actions. Its speed is measured in megahertz (MHz) or gigahertz (GHz), respectively millions or billions of cycles per second. The faster the microprocessor, the quicker the machine.
Motherboard: site of all of the internal circuitry for the system. The motherboard is the main circuit board inside a tablet, to which all other internal components connect.
Mouse: a small, hand-operated device that provides users with an intuitive way of moving the cursor and selecting areas of text.
NFC: a technology for wirelessly connecting two compatible devices simply by tapping them together.
Operating System (OS): the software handling the tablet’s basic functions.
Ports: the physical connection points that allows external devices such as computers and speakers to be linked to the tablet.
Pixels Per Inch (PPI) or Pixel density: the numbers of pixels crammed into one square inch of screen space. The higher the PPI, the more detail the screen will be able to display.
Random Access Memory (RAM) also known as 'on-board' memory: temporary workspace where the tablet holds the data it is currently processing. The higher the amount of RAM, the more and larger the applications that can be run simultaneously. Measured in megabytes (MB).
Read-Only Memory (ROM): permanent memory storage for data that does not change.
Resolution: this is measured by the number of pixels - the tiny dots that make up the overall picture. The greater the pixel count, the higher the resolution and the sharper the display. The size of tablet screen and resolution you will need will depend on what you will use the tablet for.
SlimPort: a micro USB port with the ability to output audio and video through a SlimPort adapter and an HDMI cable.
Solid State Drive: See Internal Storage.
Tablet: Mobile computers that are designed to be navigated through a touch screen.
Terabyte (TB): standard data measurement unit. One terabyte contains 1,024 gigabytes.
Tower: A stand-alone desktop computer that requires an additional monitor and speakers for full functionality.
Ultrabook: lightweight, all-purpose mobile PC for travel, work and play. Powerful performance from Intel Core processors, wakes up in a flash and has battery life that lasts.
USB or micro USB port: an interface that allows you to connect a tablet to a variety of external devices, from computers to chargers.
Video (or graphics) card: the card that allows your computer to communicate with your monitor, the video card has its own dedicated memory and is directly responsible for calculating the colour, position and size of all object on the screen. 3D cards are often a pre-requisite for many of today's best-selling games. Some computers come with a video card already incorporated into the mother card.
Virtual memory: the part of a hard disc used to store data on a temporary basis and swap it in and out of RAM as required.
Wi-Fi: technology that allows for data to be exchanged wirelessly or connect to the internet. Requires an additional wireless router as well as an internet connection from a network provider, like John Lewis Broadband.