U1: Areas of Research

• Sender takes regular message, encrypts it, then sends to receiver • Receiver decrypts message with code shared by sender and receiver

• Shifting the letters of a message by a no. of spots in the alphabet. • Possible to crack with frequency analysis.

Investigating no. of occurrences of letters in a language

• Multiple processor cores work on the same task simultaneously. • Processing shared between cores

• Always occurs when processors have +1 core. • OS manages tasks cores perform, then combines results together

• Similar to parallelization • Cores and processors are in separate computers communicating over network

Researcher can set website allowing people across world to allow computers to help process tasks, speeding up completion.

Analyzing large amounts of data to draw conclusions or predict future outcomes.

• Data gathering, preparation and organization to improve chances of finding patterns • Model building and evaluation → the application of model techniques for analysis

• Pattern is deciphered from relationships between items in same transaction • Ex: retailer might identify customer always buying cream when buying chocolates

Companies build software that learns how to classify data items into groups

Different objects with similar characteristics are grouped together

• Data mining technique used w/ others • Involving trend analysis, classification, pattern matching and relation. • Used to predict future event

• Starts w/ question having multiple answers • Each leads to further question for data to be categorized, or so prediction can be made

Large amounts of data held at disposal

• Computers use data to generate action w/ out human interaction. • Programmed into system • Programmers set rules/actions for computer to follow

• Computer learns new info from data and from reactions to data • Used to influence future decisions

• Uses quantum bits/qubits • Quantum system encoding 0 and 1 into two quantum states

Data can be 1, 0 or both at same time

• Two pieces of data connected • Change in one leads to change in other • Two pieces of data separated, but still connected