Answer:
System software.
Explanation:
System software are the in-built functions that perform a particular pre-defined task when used in a computer program. An example of a system software is an operating system.
An operating system (OS) is a system software pre-installed on a computing device to manage or control software application, computer hardware and user processes. Some examples of an operating system are QNX, Linux, OpenVMS, MacOS, Microsoft windows, IBM, Solaris, VM etc.
a.The primary purpose of JavaScript is to enable features such as validation of forms before they are submitted to the server.
<u>Explanation:</u>
On web pages before submitting the day, end user has to do client validations such as whether data enter is correct data type, so end user for client side validation been eiher by VBSCRIPT (visual basic script language) or (JavaScript java script). Internet explorer or Microsoft edge uses VBSCRIPT for web page validation.
For visual basic script languages end user should have enough knowledge on visual basic programming languages. Same away for java script end user have enough knowledge on c language.
Both Scripts are used for client side validation on success of validation end user will submit web page form for next action. JavaScript is used in most of the browser including Microsoft explorer or Microsoft edge.
Answer:
E-business model.
Explanation:
E-business model is a strategy that outlines how an organization produces, provides and yields Online revenues.
The e-business model is the path that a firm requires towards becoming a successful online business. There are several catchphrases describing facets of digital business and also there are categories in the business-to-consumer sector, such as service providers, auction sites and perfect-play Online retailers.
Answer: Aluminum, tin, and copper
Explanation: Optically stimulated luminescence (OSL) is a method in which the ionizing radiation help in measuring of the doses. It has working dependent on the radioactivities which are present in the sediments.
The filters that are used for detection of the OSL is usually made of aluminium , copper or tin because the can easily detect isotopes in the sediments which is cause by minerals like uranium etc.