32-bit processors and operating systems, in theory, can access up to 4GB of memory. So how come Qasim Zaib’s PC, with 4GB installed, only sees 3GB? Every byte of RAM requires its own address, and the ...

In the early 1990s, internet engineers sounded the alarm: the pool of numeric addresses that identify every device online was not infinite. IPv4, the fourth version of the Internet Protocol, used ...

Ken wrote in saying he loves PCWorld, natch, and that he wants to know the difference between 32-bit and 64-bit operating systems. I have to admit this isn’t something I’ve thought about in a long ...

Everything in the digital world is measured in bits and bytes. Following are the common components in a computer that are measured in bits. See bit and binary values. The "word" size is the number of ...