First-come, first-served

First-come, first-served (FCFS) – sometimes first-in, first-served and first-come, first choice – is a service policy whereby the requests of customers or clients are attended to in the order that they arrived, without other biases or preferences. Those who wait for the event or service in line may stand in a queue. The policy can be employed when processing sales orders, in determining restaurant seating, on a taxi stand, etc. In Western society it is the standard policy for the processing of most queues in which people wait for a service that was not prearranged or pre-planned.

Festival seating (also known as general seating and stadium seating) is seating done on an FCFS basis. (See The Who concert disaster for details on a December 1979 disaster involving "festival seating" at a concert by The Who in Cincinnati, Ohio at the Riverfront Coliseum.)

The practice is also common among some airlines which do not permit seat reservations either in advance or at check-in. These airlines allow passengers to board in small groups based upon their order of check-in and sit in whatever seat on the aircraft they wish to. On the basis of first come, first served, the earlier they check in, the earlier they board the aircraft to get the seat they want. Passengers are sequentially (on a first come, first served basis) assigned into one of several "boarding groups." The passengers are then boarded onto the plane in group order.

Plug 1 & Plug 2 Present... First Serve

Plug 1 & Plug 2 Present... First Serve is the eighth album from hip-hop group De La Soul members Kelvin Mercer (AKA Plug 1), and David Jolicoeur (AKA Plug 2), in collaboration with French DJ duo Chokolate and Khalid, released on April 2, 2012.

In the album the duo adopt the persona of "First Serve" a hip-hop band making it in the music industry in the late '90s. Mercer takes the persona of "Jacob 'Pop Life' Barrow", and Jolicoeur takes the persona of "Deen Witter". The album details the fictional band making it in the music industry, their success, breakup, and eventual reformation.

Jolicoeur and Mercer have been interviewed in character as Barrow and Witter, often quoting De La Soul as an "influence", and describing De La Soul as "those guys".

Track listing

References

First

First or 1st is the ordinal form of the number one (#1).

First or 1st may also refer to:

Music

Operating system

An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs. The operating system is a component of the system software in a computer system. Application programs usually require an operating system to function.

Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software for cost allocation of processor time, mass storage, printing, and other resources.

For hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between programs and the computer hardware, although the application code is usually executed directly by the hardware and frequently makes system calls to an OS function or is interrupted by it. Operating systems are found on many devices that contain a computer – from cellular phones and video game consoles to web servers and supercomputers.

Examples of popular desktop operating systems include Apple OS X, Linux and its variants, and Microsoft Windows. So-called mobile operating systems include Android and iOS.

Scheduling (computing)

In computing, scheduling is the method by which work specified by some means is assigned to resources that complete the work. The work may be virtual computation elements such as threads, processes or data flows, which are in turn scheduled onto hardware resources such as processors, network links or expansion cards.

A scheduler is what carries out the scheduling activity. Schedulers are often implemented so they keep all computer resources busy (as in load balancing), allow multiple users to share system resources effectively, or to achieve a target quality of service. Scheduling is fundamental to computation itself, and an intrinsic part of the execution model of a computer system; the concept of scheduling makes it possible to have computer multitasking with a single central processing unit (CPU).

A scheduler may aim at one of many goals, for example, maximizing throughput (the total amount of work completed per time unit), minimizing response time (time from work becoming enabled until the first point it begins execution on resources), or minimizing latency (the time between work becoming enabled and its subsequent completion), maximizing fairness (equal CPU time to each process, or more generally appropriate times according to the priority and workload of each process). In practice, these goals often conflict (e.g. throughput versus latency), thus a scheduler will implement a suitable compromise. Preference is given to any one of the concerns mentioned above, depending upon the user's needs and objectives.