Understanding Computer Terms
program
A set of instructions, written in a programming language understood by the computer, that tells the hardware what tasks to perform. Some programs are installed at the factory as ROM chips that cannot be altered; they are essential for operating the microprocessor. These
programs are called firmware. Most programs are installed as software from removable storage media. The word “program,” however, is commonly used for specific type of software applications that create data files. See data files. See also hardware and software.
R
RAM (Random Access Memory)
The main memory of the computer. It holds a copy of the operating system (OS), any programs that are running on the computer, and any data that is being processed. RAM is temporary memory; turning off the computer clears RAM. The more RAM your computer has, the faster the programs respond. See main memory, OS, program, and data file. See also ROM.
random erase
The ability to erase a single file at a time from a
recordable disc
The media used in recordable CD systems. The blank CD is made of a bottom layer of poly carbonate with a preformed track spiral, which the recording laser follows when inscribing information onto the CD. A translucent layer of recordable material is laid on top of the bicarbonate, then a reflective layer (gold or silver colored). On top there is a thin layer of lacquer and sometimes a printed label. The standard recordable CD is
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