Autosave: 2024-10-24 17:28:58
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@ -3,7 +3,7 @@ tags: [fleeting, networks, ARPANET, packet-switching]
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created: Tuesday, October 22, 2024
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---
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# 385af4b4-Baran_distributed_networks
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# 385af4b4_Baran_distributed_networks
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## Paul Baran's concept of a distributed network and influence on architecture of the ARPANET
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@ -31,10 +31,10 @@ utilise threads.
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## Hardware considerations
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Each [processor core](./CPU_architecture.md) can only run one thread at a time
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so the number of cores that a device's CPU has deterimines how many threads can
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run at once. In practice, then, the CPU shuffles between multiple threads in
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[clock segments](./Clock_signals.md). This is known as scheduling and is managed
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Each [processor core](CPU_architecture.md) can only run one thread at a time so
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the number of cores that a device's CPU has deterimines how many threads can run
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at once. In practice, then, the CPU shuffles between multiple threads in
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[clock segments](Clock_signals.md). This is known as scheduling and is managed
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by the process that the thread belongs to.
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## Related notes
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@ -13,7 +13,7 @@ Example services: checking one's bank balance, paying bills, transferring money,
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booking holidays.
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(Presumably, the services would be hosted on a providers'
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[mainframe](./Mainframe_computers.md) or mini-computer, which the consumer would
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[mainframe](Mainframe_computers.md) or mini-computer, which the consumer would
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access through something like time-sharing?)
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@ -3,10 +3,10 @@ tags: [ARPA, ARPANET, networks, computer-history]
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created: Friday, October 18, 2024
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---
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# e470bf3d-IMPs_in_the_ARPANET
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# e470bf3d_IMPs_in_the_ARPANET
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Within the #ARPANET, IMPs (Information Message Processors) were nodes
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distinguished from [hosts](./Network_hosts.md). They were computers designed to
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distinguished from [hosts](Network_hosts.md). They were computers designed to
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receive and route the the packets from one host to another, described as
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"adaptive routing".
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@ -20,7 +20,7 @@ Their job was to:
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- confirm successful transmission
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These responsibilities required the IMP to "know" the location and addresses of
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other IMPs and hosts on the [network](./Network_fundamentals.md) and their
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other IMPs and hosts on the [network](Network_fundamentals.md) and their
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proximity to them.
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From the point of view of the host user, the existence of the IMPs would be
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@ -3,14 +3,14 @@ tags: [ARPA, ARPANET, networks, computer-history]
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created: Friday, October 18, 2024
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---
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# f0f70a3c-ARPANET-motivations
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# f0f70a3c_ARPANET_motivations
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It is inaccurate to say that the chief motivation in creating the ARPANET was to
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create a network that could withstand nuclear conflict, where mulitple nodes
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could be hit and the network could still go on functioning.
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Ideas that originated from this concern _did_ influence the project (chiefly
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[Paul Baran's work on distributed networks](./385af4b4_baran_distributed_networks.md)
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[Paul Baran's work on distributed networks](385af4b4_baran_distributed_networks.md)
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at RAND), but this was not the concern of the ARPANET.
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ARPA's objectives were focused more on reducing efficiency in the academic and
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@ -13,20 +13,20 @@ computer science.
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**Build ID:** 85c93482-be2b-476d-8d37-e67e35658655
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**Build ID:** e64d42b7-6034-467b-be10-f60f7ae23656
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**Published:** Thu 24 Oct 2024 07:31:51
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**Published:** Thu 24 Oct 2024 17:28:56
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### Recent edits
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- [[cfbef1c4_web_precursors]]
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- [[861cc26e_ARPA_origins]]
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- [[f0f70a3c_ARPANET_motivations]]
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- [[e470bf3d_IMPs_in_the_ARPANET]]
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- [[f0f70a3c_ARPANET_motivations]]
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- [[Threads]]
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- [[385af4b4_Baran_distributed_networks]]
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- [[861cc26e_ARPA_origins]]
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- [[Compile_Python_app_to_single_executable]]
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- [[VirtualMemory]]
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- [[Zero_property_of_multiplication]]
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@ -3,7 +3,7 @@ tags: [fleeting, networks, ARPANET, packet-switching]
|
|||
created: Tuesday, October 22, 2024
|
||||
---
|
||||
|
||||
# 385af4b4-Baran_distributed_networks
|
||||
# 385af4b4_Baran_distributed_networks
|
||||
|
||||
## Paul Baran's concept of a distributed network and influence on architecture of the ARPANET
|
||||
|
||||
|
|
|
|||
|
|
@ -31,10 +31,10 @@ utilise threads.
|
|||
|
||||
## Hardware considerations
|
||||
|
||||
Each [processor core](./CPU_architecture.md) can only run one thread at a time
|
||||
so the number of cores that a device's CPU has deterimines how many threads can
|
||||
run at once. In practice, then, the CPU shuffles between multiple threads in
|
||||
[clock segments](./Clock_signals.md). This is known as scheduling and is managed
|
||||
Each [processor core](CPU_architecture.md) can only run one thread at a time so
|
||||
the number of cores that a device's CPU has deterimines how many threads can run
|
||||
at once. In practice, then, the CPU shuffles between multiple threads in
|
||||
[clock segments](Clock_signals.md). This is known as scheduling and is managed
|
||||
by the process that the thread belongs to.
|
||||
|
||||
## Related notes
|
||||
|
|
|
|||
|
|
@ -13,7 +13,7 @@ Example services: checking one's bank balance, paying bills, transferring money,
|
|||
booking holidays.
|
||||
|
||||
(Presumably, the services would be hosted on a providers'
|
||||
[mainframe](./Mainframe_computers.md) or mini-computer, which the consumer would
|
||||
[mainframe](Mainframe_computers.md) or mini-computer, which the consumer would
|
||||
access through something like time-sharing?)
|
||||
|
||||

|
||||
|
|
|
|||
|
|
@ -3,10 +3,10 @@ tags: [ARPA, ARPANET, networks, computer-history]
|
|||
created: Friday, October 18, 2024
|
||||
---
|
||||
|
||||
# e470bf3d-IMPs_in_the_ARPANET
|
||||
# e470bf3d_IMPs_in_the_ARPANET
|
||||
|
||||
Within the #ARPANET, IMPs (Information Message Processors) were nodes
|
||||
distinguished from [hosts](./Network_hosts.md). They were computers designed to
|
||||
distinguished from [hosts](Network_hosts.md). They were computers designed to
|
||||
receive and route the the packets from one host to another, described as
|
||||
"adaptive routing".
|
||||
|
||||
|
|
@ -20,7 +20,7 @@ Their job was to:
|
|||
- confirm successful transmission
|
||||
|
||||
These responsibilities required the IMP to "know" the location and addresses of
|
||||
other IMPs and hosts on the [network](./Network_fundamentals.md) and their
|
||||
other IMPs and hosts on the [network](Network_fundamentals.md) and their
|
||||
proximity to them.
|
||||
|
||||
From the point of view of the host user, the existence of the IMPs would be
|
||||
|
|
|
|||
|
|
@ -3,14 +3,14 @@ tags: [ARPA, ARPANET, networks, computer-history]
|
|||
created: Friday, October 18, 2024
|
||||
---
|
||||
|
||||
# f0f70a3c-ARPANET-motivations
|
||||
# f0f70a3c_ARPANET_motivations
|
||||
|
||||
It is inaccurate to say that the chief motivation in creating the ARPANET was to
|
||||
create a network that could withstand nuclear conflict, where mulitple nodes
|
||||
could be hit and the network could still go on functioning.
|
||||
|
||||
Ideas that originated from this concern _did_ influence the project (chiefly
|
||||
[Paul Baran's work on distributed networks](./385af4b4_baran_distributed_networks.md)
|
||||
[Paul Baran's work on distributed networks](385af4b4_baran_distributed_networks.md)
|
||||
at RAND), but this was not the concern of the ARPANET.
|
||||
|
||||
ARPA's objectives were focused more on reducing efficiency in the academic and
|
||||
|
|
|
|||