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As an example, VBA code written in Microsoft Access can establish references to the Excel, Word and Outlook libraries; this allows creating an application that – for instance – runs a query in Access, exports the results to Excel and analyzes them, and then formats the output as tables in a Word document or sends them as an Outlook email.
Macro recording can produce VBA code replicating user actions, thus allowing simple automation of regular tasks. VBA allows the creation of forms and in‑worksheet controls to communicate with the user. The language supports use (but not creation) of ActiveX DLL's; later versions add support for class modules allowing the use of basic object ...
VBA still supports flow control using the keyword "goto" (often called Spaghetti code in the jargon) but is mostly designed for Procedural programming. VBA supports procedural and object orientated programming, event driven programming and possible other paradigms. Goto can lead to Spaghetti code but they are not the same thing.
Loop-level parallelism is a form of parallelism in software programming that is concerned with extracting parallel tasks from loops. The opportunity for loop-level parallelism often arises in computing programs where data is stored in random access data structures .
The resulting code, pure assembly, would be translated to machine code by the assembler. [ 32 ] Two of the earliest programming installations to develop macro languages for the IBM 705 computer were at Dow Chemical Corp. in Delaware and the Air Material Command, Ballistics Missile Logistics Office in California.
The exact timing of when tasks in a concurrent system are executed depends on the scheduling, and tasks need not always be executed concurrently. For example, given two tasks, T1 and T2: [citation needed] T1 may be executed and finished before T2 or vice versa (serial and sequential) T1 and T2 may be executed alternately (serial and concurrent)
It is a form of cooperative multitasking, in which there is only one task. The sole task is typically realized as an infinite loop in main(), e.g. in C. The basic scheme is to cycle through a repeating sequence of activities, at a set frequency (AKA time-triggered cyclic executive).
Dividing a large programming task among various programmers or various stages of a project; Hiding implementation details from users of the function; Improving readability of code by replacing a block of code with a function call where a descriptive function name serves to describe the block of code. This makes the calling code concise and ...