The official differentiation between the two is that spam is unsolicited mail, whereas junk is solicited mail. This means is that spam is the mail that you haven’t asked for or given your information to...

The terms prepaid and postpaid are most commonly used to refer to mobile phone or cell phone connections. The term PRE – paid indicates that it must be paid before using, whereas POST – paid indicated...

Certifications primarily refer to certificates, which are a document that prove that you are capable of a skill or of doing a certain task. The term credentials, on the other hand, can refer to practically...

A telescope is optical instrument with a singular viewfinder that allows one to see and interpret far away objects. Binoculars have two viewfinders instead of one. Telescopes are ideally used to look at stars...

LTE is faster than what is traditionally marketed as 4G. In that regard, it is also usually more expensive. 4G in turn is faster than 3G.