DARPA circuit achieves speeds of 1 trillion cycles per second
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Re: DARPA circuit achieves speeds of 1 trillion cycles per second
#2That's certainly an impressive frequency, but it's far easier (relatively speaking) to construct an analogue amplifier for high frequencies than it is to, e.g., make a logic gate or counter that works at those frequencies - which would be necessary to build something like a CPU. So it's likely that even when/if this technology shows up in mass-produced analogue circuits, digital computers sequentially executing 1 tera-instructions-per-second are still a long way off.
And...
gain above 1 THz (1012 GHz)
one terahertz (1012 GHz)
lolwut? Are they trying to define 1THz = 1012GHz?
Re: DARPA circuit achieves speeds of 1 trillion cycles per second
#3That's certainly an impressive frequency, but it's far easier (relatively speaking) to construct an analogue amplifier for high frequencies than it is to, e.g., make a logic gate or counter that works at those frequencies - which would be necessary to build something like a CPU. So it's likely that even when/if this technology shows up in mass-produced analogue circuits, digital computers sequentially executing 1 ter…
Like you, in the "caption"y thing at the top, I see
gain above 1 THz (1012 GHz)
However, in the first paragraph, I see
one terahertz (10^12 GHz)
Of course, one terahertz should be 10^12 Hz. So perhaps the author of the phys.org article got very confused.
Re: DARPA circuit achieves speeds of 1 trillion cycles per second
#4That's certainly an impressive frequency, but it's far easier (relatively speaking) to construct an analogue amplifier for high frequencies than it is to, e.g., make a logic gate or counter that works at those frequencies - which would be necessary to build something like a CPU. So it's likely that even when/if this technology shows up in mass-produced analogue circuits, digital computers sequentially executing 1 ter…
above 1THz.
Think of it this way: the speed they actually tested at was 1012 GHz. This is a speed above 1THz.
Re: DARPA circuit achieves speeds of 1 trillion cycles per second
#5That's certainly an impressive frequency, but it's far easier (relatively speaking) to construct an analogue amplifier for high frequencies than it is to, e.g., make a logic gate or counter that works at those frequencies - which would be necessary to build something like a CPU. So it's likely that even when/if this technology shows up in mass-produced analogue circuits, digital computers sequentially executing 1 ter…
above 1THz. Think of it this way: the speed they actually tested at was 1012 GHz. This is a speed above 1THz.
Pretty sure 1012 indicates that they're talking 10 to the 12th power. Seems like they just needed one more proofreader.
Re: DARPA circuit achieves speeds of 1 trillion cycles per second
#6That's certainly an impressive frequency, but it's far easier (relatively speaking) to construct an analogue amplifier for high frequencies than it is to, e.g., make a logic gate or counter that works at those frequencies - which would be necessary to build something like a CPU. So it's likely that even when/if this technology shows up in mass-produced analogue circuits, digital computers sequentially executing 1 ter…
Like you, in the "caption"y thing at the top, I see gain above 1 THz (1012 GHz) However, in the first paragraph, I see one terahertz (10^12 GHz) Of course, one terahertz should be 10^12 Hz. So perhaps the author of the phys.org article got very confused.
Or just rearranged his sentence at some point and forgot to change units.