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Term: /bin
ID: 10350
Category: Linux/Unix
Date Added: 02/26/03
Definition: UNIX directory that contains binaries, or executables, which are the programs needed to start the system and perform other essential system tasks.

Term: /boot
ID: 10351
Category: Linux/Unix
Date Added: 02/26/03
Definition: A UNIX partition that is used to store the operating system files that compose the kernel.

Term: /dev
ID: 10352
Category: Linux/Unix
Date Added: 02/26/03
Definition: UNIX directory that contains files referencing system devices. They access devices and resources such as hard disks, the mose, printers, consoles, modems, memory, floppy disks, and the CD-ROM drive.

Term: /etc
ID: 10353
Category: Linux/Unix
Date Added: 02/26/03
Definition: UNIX directory that contains configuration files that the system uses when the computer starts.

Term: /etc/inittab
ID: 11146
Category: Linux/Unix
Date Added: 06/09/03
Definition: In UNIX, a major startup configuration file, including settings like the default run level.

Term: /lib
ID: 10354
Category: Linux/Unix
Date Added: 02/26/03
Definition: UNIX directory that houses kernel modules, security information, and the shared library images, which are files that programmers generally use to share code rather than creating copies of this code in their programs.

Term: /mnt
ID: 10355
Category: Linux/Unix
Date Added: 02/26/03
Definition: Mount points for temporary mounts by the system administrator reside in this UNIX directory, often divided into subdirectories to clearly specify device types.

Term: /proc
ID: 10356
Category: Linux/Unix
Date Added: 02/26/03
Definition: Occupies no space on the disk; it is a UNIX virtual file system allocated in memory only.

Term: /root
ID: 10357
Category: Linux/Unix
Date Added: 02/26/03
Definition: The UNIX home directory for the root user ? the system administrator.

Term: /sbin
ID: 10358
Category: Linux/Unix
Date Added: 02/26/03
Definition: Reserved for the system administrator to house programs that start the system, programs needed for file system repair, and essential network programs are stored here in 3.

Term: /tmp
ID: 10359
Category: Linux/Unix
Date Added: 02/26/03
Definition: A temporary place to store data during processing cycles in 3.

Term: /usr
ID: 10360
Category: Linux/Unix
Date Added: 02/26/03
Definition: UNIX partition in which to store some or all of the non-kernel operating system programs that will be accessed by users.

Term: /var
ID: 10361
Category: Linux/Unix
Date Added: 02/26/03
Definition: In UNIX, it holds subdirectories whose sizes often change. The subdirectories contain files such as error logs and other system performance logs that are useful to the system administrator.

Term: 1-bit tags
ID: 12368
Category: Wireless Networking
Date Added: 03/06/06
Definition: RFID devices that do not include a chip or memory and cannot store an EPC. 1-bit tags are only used to activate an alarm at retail store entrances as a means of preventing theft.

Term: 1/3 rate Forward Error Correction (FEC)
ID: 11738
Category: Wireless Networking
Date Added: 12/10/05
Definition: An error correction scheme that repeats each bit three times for redundancy.

Term: 100BaseFX
ID: 10941
Category: A+ Hardware
Date Added: 04/12/03
Definition: A variation of 100BaseT that supports fiber optic cable.

Term: 100BaseT
ID: 10942
Category: A+ Hardware
Date Added: 04/12/03
Definition: An Ethernet standard that operates at 100 Mbps and uses STP cabling (shielded twisted pair). Also called Fast Ethernet. Variations of 100BaseT are 100BaseTX and 100BaseFX.

Term: 100BaseT
ID: 11899
Category: Cisco Systems
Date Added: 12/11/05
Definition: 100-Mbps baseband Fast Ethernet specification using UTP wiring. Like the 10BaseT technology on which it is based, 100BaseT sends link pulses over the network segment when no traffic is present. However, these link pulses contain more information than those used in 10BaseT. Based on the IEEE 802.3 standard. See also Fast Ethernet and IEEE 802.3.

Term: 100BaseT4
ID: 10944
Category: A+ Hardware
Date Added: 04/12/03
Definition: Fast Ethernet that runs over four pairs of wires.

Term: 100BaseTX
ID: 10943
Category: A+ Hardware
Date Added: 04/12/03
Definition: The predominant form of Fast Ethernet. 100BaseTX runs over two pairs of wires in category 5 cable.

Term: 10Base2
ID: 10945
Category: A+ Hardware
Date Added: 04/12/03
Definition: An Ethernet standard that operates at 10Mbps and uses small coaxial cable (RG58 or similar) up to 200 meters long per segment. Also called ThinNet. The "10" means 10 Mbps, "base" means "baseband" as opposed to radio frequency and "2" means a maximum single cable length of 200m.

Term: 10Base5
ID: 10946
Category: A+ Hardware
Date Added: 04/12/03
Definition: An Ethernet standard that operates at 10Mbps and uses a thick coaxial cable (RG8 or similar) up to 500 meters long per segment. Also called ThickNet. An Ethernet network cabling specification operating at ten Mbps, "baseband" (as opposed to radio frequency), and with a maximum single cable length of 500 meters.

Term: 1394.3
ID: 10488
Category: A+ Hardware
Date Added: 03/04/03
Definition: A new standard, developed by the 1394 Trade Association, that is designed for peer-to-peer data transmission and allows imaging devices to send images and photos directly to printers without involving a computer.

Term: 16-pulse position modulation (16-PPM)
ID: 11737
Category: Wireless Networking
Date Added: 12/10/05
Definition: A modulation technique that translates four data bits into 16 light impulses.

Term: 16-pulse position modulation (16-PPM)
ID: 11831
Category: Wireless Networking
Date Added: 12/10/05
Definition: A modulation technique that translates four data bits into 16 light impulses.

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