Usage notes [edit]. The feminine noun acta is like other feminine nouns starting with a stressed a sound in that it takes the definite article el (normally reserved for masculine nouns) in the singular when there is no intervening adjective:
Skype is a program that uses internet to make free worldwide calls and video calls between computers, smartphones and mobile devices, to chat and transfer files. It has about 280 million active users per month and since 2011 belongs to Microsoft Corporation.
Although it's not the only service available, Skype is one of the most popular video call services. You don't need a lot of equipment and the software is user-friendly, enabling you to make video calls within minutes of downloading it.