The address size was increased in IPv6 to 128 bits, providing a vastly increased address space that also allows improved route aggregation across the Internet and offers large subnetwork allocations of a minimum of 2 64 host addresses to end-users.
12.
Additionally, the System / 38 and its descendants are the only commercial computers ever to use a machine interface architecture to isolate the application software and most of the operating system from hardware dependencies, including such details as address size and register size.
13.
Some models supported separate instruction and data spaces for an effective virtual address size of 128 kB within a physical address size of up to 4 MB . Smaller PDP-11s, implemented as single-chip CPUs, continued to be produced until 1996, by which time over 600, 000 had been sold.
14.
Some models supported separate instruction and data spaces for an effective virtual address size of 128 kB within a physical address size of up to 4 MB . Smaller PDP-11s, implemented as single-chip CPUs, continued to be produced until 1996, by which time over 600, 000 had been sold.
15.
Other software sizing methods include Use Case-based software sizing, which relies on counting the number and characteristics of use cases found in a piece of software, and COSMIC software sizing, which addresses sizing software that has a very limited amount of stored data such as'process control'and'real time'systems.
16.
The size of a word is reflected in many aspects of a computer's structure and operation; the majority of the address size, used to designate a location in memory, is typically a hardware word ( here, " hardware word " means the full-sized natural word of the processor, as opposed to any other definition used ).
