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Estimating the data the Internet contains is complicated because: 1. The Internet is not a single computer or a single network, but a network of networks, whose size is constantly changing 2. Not all data stored on these networks are necessarily accessible to all users. However, there are a few estimates. According to one, the quantity is approximately equal to …
Read More »How is the data of emails stored on servers? What is their capacity and where are they located?
An e-mail system consists of two different servers running on a machine. One is called the SMTP server, where SMTP stands for Simple Mail Transfer Protocol. The SMTP server handles outgoing mail. The other is either a POP3 server or an IMAP server, both of which handle incoming mail. POP stands for Post Office Protocol and IMAP stands for Internet …
Read More »How does a computer or laptop keep track of time even when it is switched off?
A desktop PC has a lithium cell or battery (the same is used in digital diaries) called a BIOS cell inside the CPU, and attached to the motherboard, which keeps track of time even after the computer is powered down, whereas in laptops, the battery of the laptop itself is used to keep track of time. This battery also saves …
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