Recently, thanks to continued yearly improvements in both processing speed and memory capacity of electronic devices, we don't have to worry so much about speed or data storage any more.
The L-490X had a maximum main memory capacity of 12 megabytes, the L-470X, eight megabytes and the L-450X and the L-450X desk-type model, four megabytes.
SSD's typically have extremely small storage space- a 180 GB SSD can cost just as much as a 700 GB HDD- but the speed difference can be over fifty times faster than a 7200 rpm HDD.
Memory capacity of the magnetic core ranged, as before, from 4 Kword to a maximum of 32 Kword, and higher speed was achieved with a cycle time of 0.9 microseconds and an addition/subtraction speed of 1.8 microseconds.
Memory capacity was 1,040 words, with 40 words of that storing the same content 5 times over the circumference, thereby achieving high-speed access with a reduced access time.
The participants went from recalling around 26 words from a list of 72 to remembering 62 words, so the training more than doubled their memory capacity.
The memory unit adopted ferrite core memory with the capacity of 256 words(32 digits per word), with core matrix method using two alternating currents.
The system had memory capacity ranging from 4 K word to a maximum 32 K word, a cycle time of 1.4 milliseconds, an addition/subtraction arithmetic speed of 2.8 milliseconds, 16 basic instructions(up to 12 instructions could be added as an option), and could be connected to a maximum of 64 input/output devices.
The system had memory capacity ranging from 4 Kword to a maximum 32 Kword, a cycle time of 1.4 microseconds, an addition/subtraction arithmetic speed of 2.8 microseconds, 16 basic instructions(up to 12 instructions could be added as an option), and could be connected to a maximum of 64 input/output devices.
This magnetic drum memory unit equipped with 823 floating read/write heads had a memory capacity of 4 MB, information recording density of 56 bit/mm, rotation speed of 3000 rpm, average access time of 10.3 ms, and achieved information transfer rate of 2.2 MB/s with the eight parallel track reading and writing.
記憶容量は、それほど変わらない。
Memory capacity remains relatively unchanged.
人間の記憶容量は限られている。
Human memory capacity is limited.
このシステムの記憶容量は150テラバイトです。
Total storage capacity of the system is 150 terabytes.
脳の記憶容量は、実質的には無制限だと考えられている。
Your brain's storage capacity is considered virtually unlimited.
The maximum storage capacity of the subsystems was 27 terabytes, about four times that of the previous models. It was also possible to mix 18, 47, and 73 GB disk drives in the subsystems for a larger span of storage capacities to meet each specific system's requirements.
In moving from the L-70/20 to the top-end L-70/55, the maximum memory size was expanded from 2 megabytes to 16 megabytes, maximum file capacity from 560 megabytes to 2 gigabytes, and the maximum number of workstations from 15 to 30. The L-30/15 was the successor of the L-30/10.
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