What was the clock speed of the original IBM PC?

ICMP Packets are used to send control messages including errors.

Typically it relies on someone emailing it to you, it does not email itself, it may arrive in the form of a joke program or software of some sort.

As surprising as its age is, the Internet was born from the U.S. military's need to construct a decentralized computer network that could withstand a nuclear war. The network was used and refined by universities throughout the 1970s and 1980s, but it wasn't until 1992 that the Internet was made available to the general public.

It is a protocol used to create VPN connections over the net.

MAC is short for Media Access Control address, an address unique to every piece of network hardware.

Before the invention of word processing and spreadsheet software, personal computers had little value in the mainstream business world. WordStar was used before the days of function keys and the mouse. It, instead, used a set of Ctrl and Alt key combinations to navigate and edit text documents.

URL stands for Uniform Resource Locator. It is an address for a specific document found on the Web.

VCM was designed by NEC Corp. It is supposed to be faster than normal SDRAM, and it is, but it never caught on.