Useful abbreviations¶
2¶
- 2FA
- Two-Factor Authentication; granting access with two pieces of evidence (factors) of authentication: knowledge and possession. More information: https://en.wikipedia.org/wiki/Multi-factor_authentication
A¶
- AD
- active directory; Microsoft directory service, e.g. for authentication (more information)
- a.k.a.
- also known as
- AK groep
akoestiek groep; acoustic group, a.k.a. acoustic wavefield imaging group; in 2020 split up in MI and CI- API
- application programming interface; definition how other components or systems can use a software component or a system (e.g. a software library)
B¶
- bit
- smallest element in computer; can be either one (
1) or zero (0) - BYO
- bring your own; in ICT referring to computers that are bought, installed and configured by the user and not the company
- byte
- grouping of bits; 8-bits means one byte exist of eight bits; first bit (most left) is MSB in big-endian (\(byte_b\)) or LSB in little-endian (\(byte_l\)); see LSB and MSB; formula for 8-bits:
\[\begin{align*}
byte_b &= n_7 n_6 n_5 n_4 n_3 n_2 n_1 n_0\\
byte_l &= n_0 n_1 n_2 n_3 n_4 n_5 n_6 n_7\\
value &= \sum_{k=0}^7 n_k 2^k \quad \{n \in \mathbb{N} ; 0 \leq n \leq 1\}\\
\\
\mathtt{10000010}_b &= 2^7+2^1 = 130\\
\mathtt{10000010}_l &= 2^0+2^6 = 65\\
\end{align*}\]
C¶
- CI group
- computational imaging group; research group in the ImPhys department, faculty of Applied Sciences at the University of Delft
- CI/CD
- continuous integration/continuous deployment; used in GitLab, after each push script(s) are automatically executed to build, test, validate and deploy the code
- CPU
- central processing unit; the main processor (core) of a computer
- CUI
- command-line user interface; all instructions for the computer are typed commands, output is also character based; see also GUI
E¶
- e.g.
- for example; from exempli gratia
F¶
- FTP
- file transfer protocol; transfering files between computers
G¶
- GB
- gigabytes; 1GB = 1024MB = 1048576KB; see MB and KB
- GSSAPI
- generic security service application program interface; application programming interface for programs to access security services (e.g. Kerberos authentication)
- GUI
- graphical user interface; instructions are typically selected with a mouse, output is mainly graphic; see also CUI
H¶
- HPC
- high performance computing; e.g. HPC clusters; servers equipped with large amount of cores and/or memory, sometimes powerfull GPU cards or high-speed network-connections
I¶
- ICT
- information and communication technology
- IDE
- integrated development environment; software for programming
- i.e.
- in other words; from id est
- ImPhys departement
- imaging physics department; department in the faculty of Applied Sciences at the University of Delft; https://www.tudelft.nl/en/faculty-of-applied-sciences/about-faculty/departments/imphys/
- IT
- information technology
K¶
- kb
- kilobits; 1kb = 1000 bits = 125 bytes; lowercase ‘k’ means 1000 and lowercase ‘b’ means bits; see bit
- Kb
- kilobits; 1kB = 1024 bits = 128 bytes; uppercase ‘K’ means 1024 and lowercase ‘b’ means bits; see bit
- kB
- kilobytes; 1Kb = 1000 bytes; lowercase ‘k’ means 1000 and uppercase ‘B’ means bytes; see byte
- KB
- kilobytes; 1KB = 1024 bytes; uppercase ‘K’ means 1024 and uppercase ‘B’ means bytes; see byte
L¶
- LDAP
- lightweight directory access protocol; authentication service (more information)
- LOL
- laughing out loud
- LSB
- least significant bit; if this bit is to zero (
0) number is even and if set to one (1) number is odd
M¶
- MB
- megabytes; 1MB = 1024KB; see KB
- MI group
- medical imaging group; research group in the ImPhys department, faculty of Applied Sciences at the University of Delft
- MSB
- most significant bit; a.k.a. high order bit; bit with greatest value
N¶
- NetID
- network identification; all employees and students the TU Delft have a unique NetID used to access computer services (more information)
O¶
- OS
- operating system; e.g. Linux, macOS or Windows
Q¶
- QI group
- quantitative imaging group; in 2020 split up in MI and CI
R¶
- RDP
- remote desktop protocol; Microsoft protocol for remotely accessing desktop
- RP
- research practicum
S¶
- SCP
- secure copy; transfering files between computers using a secure shell connection; see SFTP and SSH
- SFTP
- secure file transfer protocol; transfering files between computers using a secure shell connection; see FTP and SSH
- SSH
- secure shell; an end-to-end encrypted connection between computers
- SSHFS
- secure shell file system: mounting a remote filesystem over SSH
T¶
- TB
- terabytes; 1TB = 1024GB = 1048576MB = 1073741824KB; see GB, MB and KB
- TL;DR
- too long; didn’t read; long text might keep people from reading therefor a short (sometimes sarcastic) summery is given preceded by TL;DR
- TU
- Technical University; as in TU Delft
U¶
- UMRA
- user management resource administrator; management environment for users and groups (more information)
- URL
- uniform recourse locator; a.k.a. web address, is a reference to a web resource stating how to retrieve it (e.g.
http://,https://,ftp://,file://). For more information check: https://en.wikipedia.org/wiki/URL
V¶
- VNC
- virtual network connection; a tunneled connection to a remote computer, as if the user is sitting behind the remote computer
- VPN
- virtual private network; a tunneled connection to a remote network, as if the local computer is physically connected to the remote network
W¶
- WSGI
- web server gateway interface; describes how to handle requests to web applications written in Python. For more information check: https://en.wikipedia.org/wiki/Web_Server_Gateway_Interface
- WSL
- windows subsystem for linux; enables the installation of GNU/Linux environment in Windows, e.g. Ubuntu can be run in Windows