Jail, 480, 504

Java virtual machine, 73

JBD (see Journaling Block Device)

Jiffy, 737

JIT (see Just-in-Time compilation)

Jitting, Windows, 952

Job, 8

• Windows, 931

Job object, Windows, 1011

Jobs, Steve, 17, 408, 614

Journal, NTFS, 890

Journaling, NT file system, 999–1000

Journaling block device, 782

Journaling file system, 292–293, 781

Just-in-time compilation, 807

JVM (see Java Virtual Machine)