Almost all programming languages are sequential in nature. But VHDL is a concurrent language. In an architecture for an entity, all statements are concurrent. So where do sequential statements exist in VHDL?. There is a statement called the process statement that contains only sequential statements. The process statement is itself a concurrent statement. A process statement can exist in an architecture and define regions in the architecture where all statements are sequential. A process statement has a declaration section and a statement part. In the declaration section, types, variables, constants, subprograms, and so on can be declared. The statement part contains only sequential statements. Sequential statements consist of CASE statements, IF THEN ELSE statements, LOOP statements, and so on.
processes are concurrent if they exist at the same time.concurrent process can function completely indepently to one another. two process are concurrent if their execution can overlap in time; that is, the execution of the second process starts before the first process completes. concurrent processes generally interact through the following mechanisms: Shared variables Message passing
'sequential' means 'one after another' - first do task A, then do task B, then do task C... 'concurrent' means 'at the same time' - do tasks A, B and C all at once. In a relay race, a team runs sequentially - each team member runs, then passes the baton to the next so that s/he can tun - but all the teams run concurrently - all the teams have someone running at any given time in the race.
Systems are usually implemented as concurrent processes to ensure that the products are all ready at the same time. This cuts down on the production time in many industrial applications.
processes are concurrent if they exist at the same time.concurrent process can function completely indepently to one another. two process are concurrent if their execution can overlap in time; that is, the execution of the secon process starts before the first process completes. concurrent processes generally interact through the following mechanisms: Shared variables Message passing
Concurrent processes require access to shared resources, synchronization mechanisms to coordinate access to those resources, and a way to manage communication and data exchange between processes. The operating system must provide support for process management, scheduling, and inter-process communication to enable concurrency. Additionally, proper error handling and robust design are essential for successful execution of concurrent processes.
A sequential speech is a type of speech or presentation that is organized in a logical, step-by-step manner. It typically follows a chronological or sequential order, presenting information or ideas in a linear fashion. This type of speech is effective for explaining processes, providing instructions, or presenting a series of events in a clear and structured way.
Processes that run at the same time or pace - along side of each other not before or after.
Concurrent control is a type of control mechanism that focuses on managing activities as they happen in real time. It involves monitoring ongoing processes to ensure that they are progressing according to plan and taking corrective actions immediately if any deviations or issues are detected. By implementing concurrent control, organizations can improve efficiency, identify problems early, and prevent them from escalating into larger issues.
concurrent
the sequential flow of processes usually linear and its has two types which are: Waterfall and Prototyping Model
Concurrent Powers