| A | B |
|---|
| backward compatibility | The ability of a newer version of a program to open and display files that were created using an earlier version of the program |
| Blu-ray | Disc that stores up to 50 gigabytes on a double-layer disc |
| Broadband | Fast connection to the Internet; about 30 times faster than phone lines |
| circuit breaker | Cuts off power on a power strip in case of a short circuit in the equipment |
| defragment | Rearranging data on a hard disk so files are written on adjacent sectors |
| dual-core processor | A type of multi-core processor with two processor cores on one microprocessor |
| fragmentation | Files stored on the hard disk as separate parts in nonadjacent tracks |
| freeware | Software that is copyrighted by the programmer, but for which there is no charge |
| jumpers | Connectors that fit over pairs of pins |
| platform | The combination of a particular operating system and the processor that it controls |
| response time | Amount of time it takes to change the color of a pixel on an LCD monitor; also referred to as the response rate |
| virtual memory | Without enough RAM, the operating system will designate part of the hard drive as virtual memory |
| dual boot | When a Mac computer that uses an Intel processor that is running Windows is started, a dual boot asks which platform to run when the computer is booting up |
| circuit breaker | Cuts off power on a power strip in case of a short circuit in the equipment |
