Outcome 2 Part 2 Flashcards
What is the memory wall in Von Neumann architecture
The Von Neumann bottleneck when a large amount of energy and time is wasted in the process of data transports due to the speed difference between computation and memory increasing.
Examples of more than one processor put into a chip
Multicore
Parallel Processing.
How can the NAS box SATA HDD be accessed
Through SSH using TCP/UDP port 22 or kerberos
What is a NAS box SATA HDD
Large storage for backup.
Moore’s Law
Gordon Moore showed that the processing speeds of computers nearly double every two years.
What two factors can affect a CPU’s performance ?
Different architectures
How hot it gets
Differences between Harvard and Von Neumann Architecture
Harvard architecture has separate storage and signal pathways for instructions and data.
Whereas Von Neumann has program instructions and data share the same memory and pathways.
What devices is Harvard architecture popular in ?
Smaller embedded systems like your microwave or a watch.
How is Harvard architecture performance improved over Von Neumann ?
By it being possible to access program memory and data simultaneously.
What types of devices is Von Neumann architecture popular in ?
Large computing systems. This could be anything about the size of and bigger than a phone
Main disadvantage of Von Neumann Architecture
Memory bandwidth becomes the bottleneck. A point of congestion where processes slow down.
Credited as “the father of computer science”
Alan Turing
Who originated the concept of a programmable computer. Considered the Father of the computer ?
Charles Babbage
Early 19th Century
Two main types of computer architecture.
Von Neumann architecture and Harvard architecture.
Memory fragmentation
Gaps in memory starting to appear that aren’t actually being used
