Achim (German pronunciation: [ˈaxɪm]) is a municipality and the largest town (population 30.059 (December 2006)) in the district of Verden, in Lower Saxony, Germany. It is situated on the right bank of the Weser, approx. 17 km northwest of Verden, and 16 km southeast of Bremen. The mayor is Uwe Kellner.

Achim lies in a valley of the Weser. The area surrounding Achim is primarily moorland in its natural state. It has an elevation of 15 meters above sea level, and an area of 65.1 km².

For Baden mountains and Oil Camp, see Baden, Lower Saxony.

The first recorded mention of Achim came in 1091 as Arahem. The controlling heights of the Linden Mountains, south of Bremen, on which the old Arahem leaned, was a cult- and court-location. Achim was a meeting place of old Saxon courts. The court met three times annually.

The Christian missionaries erected a baptismal church in Achim in the 12th century; it was the predecessor of St. Laurentius Church in Achim, built in 1257. Then it belonged to the Prince-Archbishopric of Bremen.

Data ( /ˈdeɪtə/ DAY-tə, /ˈdætə/ DA-tə, or /ˈdɑːtə/ DAH-tə) are values of qualitative or quantitative variables, belonging to a set of items. Data in computing (or data processing) are often represented by a combination of items organized in rows and multiple variables organized in columns. Data are typically the results of measurements and can be visualised using graphs or images. Data as an abstract concept can be viewed as the lowest level of abstraction from which information and then knowledge are derived. Raw data, i.e., unprocessed data, refers to a collection of numbers, characters and is a relative term; data processing commonly occurs by stages, and the "processed data" from one stage may be considered the "raw data" of the next. Field data refers to raw data collected in an uncontrolled in situ environment. Experimental data refers to data generated within the context of a scientific investigation by observation and recording.

The word data is the plural of datum, neuter past participle of the Latin dare, "to give", hence "something given". In discussions of problems in geometry, mathematics, engineering, and so on, the terms givens and data are used interchangeably. Such usage is the origin of data as a concept in computer science or data processing: data are numbers, words, images, etc., accepted as they stand.