1 An architect is not, or at least should not, be tied to one specific element of expertise. 2  If he or she is focused on only one area, then he or she becomes a subject matter expert and not an architect. 3  This is an important and practical distinction, because technology keeps changing.
An ordered arrangement of data items. A vector is a one dimensional array; a matrix is a two-dimensional array. Arrays are used in myriad applications from basic database processing to scientific simulation. Most programming languages support arrays by providing indexes into the data.
RAM = Random Access Memory. That's the volatile high speed memory that is used inside a computer that lets you store internal applications and data. Everything written to RAM is lost when you turn off the computer, so usually, important data is written to a long-term storage device, such as a disk or Flash Memory. CPU = Central Processing Unit.