In computer architecture, 64-bit integers, memory addresses, or other data units are those that are 64 bits wide. Also, 64-bit CPUs and ALUs are those that are based on processor registers, address buses, or data buses of that size. A computer that uses such a processor is a 64-bit computer.
From the software perspective, 64-bit computing means the use of machine code with 64-bit virtual memory addresses. However, not all 64-bit instruction sets support full 64-bit virtual memory addresses; x86-64 and ARMv8, for example, support only 48 bits of virtual address, with the remaining 16 bits of the virtual address required to be all 0's or all 1's, and several 64-bit instruction sets support fewer than 64 bits of physical memory address.
The term 64-bit also describes a generation of computers in which 64-bit processors are the norm. 64 bits is a word size that defines certain classes of computer architecture, buses, memory, and CPUs and, by extension, the software that runs on them. 64-bit CPUs have been used in supercomputers since the 1970s (Cray-1, 1975) and in reduced instruction set computers (RISC) based workstations and servers since the early 1990s. In 2003, 64-bit CPUs were introduced to the mainstream PC market in the form of x86-64 processors and the PowerPC G5.
A 64-bit register can hold any of 264 (over 18 quintillion or 1.8×1019) different values. The range of integer values that can be stored in 64 bits depends on the integer representation used. With the two most common representations, the range is 0 through 18,446,744,073,709,551,615 (264 − 1) for representation as an (unsigned) binary number, and −9,223,372,036,854,775,808 (−263) through 9,223,372,036,854,775,807 (263 − 1) for representation as two's complement. Hence, a processor with 64-bit memory addresses can directly access 264 bytes (16 exbibytes or EiB) of byte-addressable memory.
With no further qualification, a 64-bit computer architecture generally has integer and addressing registers that are 64 bits wide, allowing direct support for 64-bit data types and addresses. However, a CPU might have external data buses or address buses with different sizes from the registers, even larger (the 32-bit Pentium had a 64-bit data bus, for instance).
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Alam ko na sa iba ay itong Tutorial na ito ay Na "POST" na. so sa madaling salita ay parang Repost lang ako? well hndi po.. ipi-napaliwanag ko lang po ng mas maikli para dun sa mga gustong matuto or yung iba...
Smadav kaya niya po bang alisin ang virus sa laptop
for example po may fule ako sa desktop na sanaysay.docx tas naduduplicate nagiging ~$anaysay.docx kaya po ba if hindi ano po pwede kong gawin?
Pahelp mga masters. Nag upgrade ako sa windows 10 installed naman drivers, latest naman. pero di makasearch ng mga devices pag mag a-add ka or mag send at receive ng files. baka may nakagawa na ng paraan para maayos to share nyo naman.. TIA
Hi mga boss,
Need help po sa mga may Canon MP287 na printer jan or kahit hindi same model ng printer ganito po ba tlga yung paper available niya naka default sa A4 kahit letter yung size ng paper na gagamiting ko. May problema din kasi ako pag nagprint ako eh meron syang excess space sa both...