Perl is a script programming language that is similar in syntax to the C language and that includes a number of popular UNIX facilities such as sed, awk, and tr. Perl is an interpreted language that can optionally be compiled just before execution into either C code or cross-platform bytecode. When compiled, a Perl
DEFINITION of JavaScript
JavaScript is an interpreted programming or script language from Netscape. It is somewhat similar in capability to Microsoft’sVisual Basic, Sun’s Tcl, the UNIX-derived Perl, and IBM’sREXX. In general, script languages are easier and faster to code in than the more structured and compiled languages such as C and C++.
DEFINITION of widget
1) In general, widget (pronounced WIH-jit ) is a term used to refer to any discrete object, usually of some mechanical nature and relatively small size, when it doesn’t have a name, when you can’t remember the name, or when you’re talking about a class of certain unknown objects in
DEFINITION of cryptanalysis
Cryptanalysis refers to the study of ciphers, ciphertext, or cryptosystems (that is, to secret code systems) with a view to finding weaknesses in them that will permit retrieval of the plaintext from the ciphertext, without necessarily knowing the key or the algorithm. This is known as breaking the cipher, ciphertext, or cryptosystem.
DEFINITION of cryptography
Cryptography is the science of information security. The word is derived from the Greekkryptos, meaning hidden. Cryptography is closely related to the disciplines of cryptology andcryptanalysis. Cryptography includes techniques such as microdots, merging words with images,
DEFINITION of high-performance computing
High-performance computing (HPC) is the use of parallel processing for running advanced application programs efficiently, reliably and quickly. The term applies especially to systems that function above a teraflop or 1012 floating-point operations per second. The term HPC is occasionally used as a synonym for supercomputing,
DEFINITION of FLOPS
In computers, FLOPS are floating-point operations per second. Floating-point is, according to IBM, “a method of encoding real numbers within the limits of finite precision available on computers.” Using floating-point encoding, extremely long numbers can be handled relatively easily. A floating-point number is expressed as a
DEFINITION of hertz
Hertz is a unit of frequency (of change in state or cycle in a sound wave, alternating current, or other cyclical waveform) of one cycle per second. It replaces the earlier term of “cycle per second (cps).”
DEFINITION of alternating current
In electricity, alternating current (AC) occurs when charge carriers in a conductor orsemiconductor periodically reverse their direction of movement. Household utility current in most countries is AC with a
DEFINITION of analog
1) In telecommunications, an analog signal is one in which a base carrier’s alternating current frequency is modified in some way, such as by amplifying the strength of the signal or varying the frequency, in order to add information to the signal. Broadcast and telephone transmission have conventionally used analog technology.
