The unused space in a disk cluster. The DOS and Windows file systems use fixed-size clusters. Even if the actual data being stored requires less storage than the cluster size, an entire cluster is reserved for the file. The unused space is called the slack space.
DOS and older Windows systems use a 16-bit file allocation table (FAT), which results in very large cluster sizes for large partitions. For example, if the partition size is 2 GB, each cluster will be 32 K. Even if a file requires only 4 K, the entire 32 K will be allocated, resulting in 28 K of slack space. Windows 95 OSR 2 and Windows 98 resolve this problem by using a 32-bit FAT (FAT32) that supports cluster sizes smaller than 1K.
- slag code
Another name for a logic bomb.
- slate PC
A class of notebook computer that accepts input from an electronic pen rather than from a keyboard. Slate PCs are particularly useful in situations where keyboards are awkward or unnecessary. Typically, slate PCs can decipher clearly written block letters and translate them into their ASCII equivalents. To date, however, they cannot handle script, although the […]
Any device that is controlled by another device, called the master.
- sleep mode
An energy-saving mode of operation in which all unnecessary components are shut down. Many battery-operated devices, such as notebook computers, support a sleep mode. When a notebook computer goes into sleep mode, it shuts down the display screen and disk drive. Once awakened, the computer returns to its former operating status.
In low-speed communications networking a slice is a subdivision of a channel buffer. Sections of the buffer are divided into slices that are used for buffering network messages and data.