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google keep > quick > Flashcards

quick Flashcards

1
Q

immediate addressing (“LDA005”)

A

load the value “005” into the accumulator

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2
Q

feature of assembly language

A

commands have a one-to-one relationship with machine code

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3
Q

RIPA - regulates the power of public bodies to : (3)

A
  • carry out investigations
  • interceptions of communications
  • grants certain public bodies(MI5, police)
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4
Q

what are examples of interceptions that public bodies have the right to

A

examples(phone calls, emails, SMS)

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5
Q

what is the dampening factor used for

A

used to prevent pages from having too much influence(on pagerank value)

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6
Q

When does record locking happen and what level does it happen at

A

when the user wants to modify a record the DBMS will lock it.
done at reord level NOT at table level.

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7
Q

what is thinking ahead

A

identifying all the inputs and outputs required for a system before its implemented

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8
Q

what is problem recognition

A

identifying the key requirement of a solution

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9
Q

what is decomposition

A

breaking down a problem into smaller sub-problems

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10
Q

what is market failure

A

when the price mechanism leads to a misallocation of resources

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11
Q

what makes an algorithm computational (2)

A
  • it has a step by step sequence of instructions
  • it has an output
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12
Q

what is the purpose of the FDE cycle

A

to move the next instruction from RAM to the CPU, where it will be executed

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13
Q

what are the factors that impact the supply of labour(5)

A
  • infrastructure (ability to commute from/to work)
  • skills required
  • differences in wages between countries
  • monetary and non - monetary benefits(bonuses, free healthcare)
  • housing costs in a particular area
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14
Q

what happens in the fetch stage during the FDE

A
  • the address of the PC is copied into the MAR + the contents are placed into the MDR
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15
Q

what happens in the decode stage during the FDE

A
  • the CU is responsible for decoding + the contents in the CIR are decoded into operand and opcode
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16
Q

what happens in the execute stage during the FDE

A
  • the logic operation is carried out by the ALU. the results are stored in the ACC
17
Q

what is a zero indexed array(2)

A
  • a data structure which stores data of the same type
  • the first element is stored at the index zero
18
Q

what is an embedded system(2)

A
  • a processor built into another device
  • designed to perform a specific task
19
Q

definition of RISC

A

an integrated circuit with a basic range of machine instructions

20
Q

one reason why Purchasing Power Parties are used(2)

A
  • to improve accurace when comparing data betwen countries
  • PPP compares the cost of living between different countries
21
Q

RAD(4)

A
  • prototype is created
  • evaluated and feedback is used to inform next iteration
  • any changes are made
  • process is repeated until prototype becomes final product
22
Q

what is a hash

A

a result generated by applying an algorithm to a value

23
Q

another name for variable and its name

A

memory location with label “…….”

24
Q

3 evaluation points for monopsonies

A
  • suppliers will have a major buyer improving revenue, long-term investment and profit
  • government intervention to protect supplier and its employees(setting limits on price)
  • monopsony firm benefit(lower costs)
25
Q

what is organic growth

A
  • the business gows naturally
  • opening new branches
26
Q

what is the genie coefficient

A

area between the line of perfect equality and the lorenz curve(divided by the totoal area)

27
Q

what is absolute poverty

A

income of < $2.15/day

28
Q

what is relative poverty

A

when the income earned < 60% of median income

29
Q

what are the scores for HDI

A
  • > =0.8 = very high(development)
  • 0.7-0.79 = high
  • 0.55-0.69 = medium
  • < 0.5 = low
30
Q

what is the only exception for newton raphson, what does it mean

A

it doesnt wo-rk when the gradient is 0, there is a stationary point at x = 0

31
Q

why does a one to many to one relationship have to be created(3)

A
  • changes many to many relationships
  • it takes the design into a normalised form(3NF)
  • reduces data inconsistencies
32
Q

how does a multi user operating system work(4)

A
  • different usernames and passwords allows different users to log in
  • individual settinjg for each user can be stored
  • … to personalise user eperience(desktop background and colour)
  • access controls can be allocated to each user (to only permission to files that they are allowed to access)
33
Q

what are the four stages of the spiral model

A
  • identify
  • design
  • construct
  • evaluate

google keep (10 decks)

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