Register to reply

What is the physical form of binary data in a computer processor?

by greswd
Tags: binary, data, form, physical, processor
Share this thread:
greswd
#1
Jan11-13, 06:00 AM
greswd's Avatar
P: 147
This a general, layman question. Computer processors work with binary digits, 1 and 0. Of course, computer processors can be seen as microscopic forms of Babbage's analytic engine. So in reality, in the circuits of a microprocessor, what physical form do binary digits take?
Phys.Org News Partner Science news on Phys.org
Experts defend operational earthquake forecasting, counter critiques
EU urged to convert TV frequencies to mobile broadband
Sierra Nevada freshwater runoff could drop 26 percent by 2100
mfb
#2
Jan11-13, 01:49 PM
Mentor
P: 11,928
High and low voltage in circuits.
greswd
#3
Jan14-13, 11:48 AM
greswd's Avatar
P: 147
Quote Quote by mfb View Post
High and low voltage in circuits.
what about on/off currents? Though, I've heard that binary in newfangled quantum computers corresponds to excited and de-excited states of atoms.

berkeman
#4
Jan14-13, 12:45 PM
Mentor
berkeman's Avatar
P: 41,140
What is the physical form of binary data in a computer processor?

Quote Quote by greswd View Post
what about on/off currents?
No, not in typical digital logic circuits. Voltage levels are used to encode the binary data.
mfb
#5
Jan15-13, 03:28 PM
Mentor
P: 11,928
Quote Quote by greswd View Post
Though, I've heard that binary in newfangled quantum computers corresponds to excited and de-excited states of atoms.
Quantum computers will use different mechanisms, right. There is no quantum computer processor yet.
Current is problematic to control (it would always depend on sender AND receiver of data).
greswd
#6
Jan18-13, 10:51 AM
greswd's Avatar
P: 147
Quote Quote by mfb View Post
Quantum computers will use different mechanisms, right. There is no quantum computer processor yet.
Current is problematic to control (it would always depend on sender AND receiver of data).
what about the one from D-Wave?
greswd
#7
Jan18-13, 10:53 AM
greswd's Avatar
P: 147
Quote Quote by berkeman View Post
No, not in typical digital logic circuits. Voltage levels are used to encode the binary data.
the sort of digital logic circuits found in most PCs? what sort of circuits use current?
rcgldr
#8
Jan18-13, 11:16 AM
HW Helper
P: 7,134
Processors also include "tables" of data for certain operations, so in addtion to voltage levels, binary data is represented by the presence or absence of connectors or diodes used to change a set of voltage inputs into a particular combination for output from a table.
mfb
#9
Jan18-13, 11:19 AM
Mentor
P: 11,928
Quote Quote by greswd View Post
what about the one from D-Wave?
Is that more than an announcement?
Their flux qubits would use the direction of current flow (or, equivalently, the direction of a magnetic field) to decode 0, 1 and superpositions of those.

the sort of digital logic circuits found in most PCs?
In all.

what sort of circuits use current?
Well, current can correspond to data in analog circuits.


Register to reply

Related Discussions
GARCH fitting to binary data / latent data Set Theory, Logic, Probability, Statistics 7
Processor and memory architecture of computer system Programming & Computer Science 11
Physical Transfer of Data on a Computer Bus Computers 4
The Physics of a Computer Processor Quantum Physics 13
The Physics of a Computer Processor General Physics 2