0417/11

Question 1

volatile data stores data

Answer 1

RAM

Question 2

main printed circuit broad found in 🖥 system

Answer 2

motherboard

Question 3

a non-volatile chip that stores the start-up commands

Answer 3

ROM

Question 4

devices provides 🖥 with ability to produce sounds

Answer 4

sound chip

Question 5

icon

Answer 5

a picture

shortcut to program

Question 6

virus

Answer 6

infects a  🖥 system
... replicates itself
... attaches itself to data
😡delete/corrupt data
😡 cause 🖥 run slower
😡 fills up hard rive/memo
😡 corrupt/erase content of hard rive

Question 7

7 evaluation

Answer 7

👉 compares system w/ initial requirement
👉 identify limitation
👉 identify further improvements
👉 evaluate user’s experience

Question 8

4 development

Answer 8

file structure - store data
validation rules - ensure data entered is sensible
user interface - allow data to be input
output format - reports

Question 9

1 analysis

Answer 9

1 collect data of system
2 identify problems
3 identify inout, processing, output
4 requirement of new system

Question 10

2 design

Answer 10

👉 data entry schemes
👉 user interface layout
👉 printed layout
👉 screen-based output
👉 structure to store data
👉 data validation rules 
👉 data verification rules

Question 11

3 testing

Answer 11

• develop test plan
• test whole system w/
  normal data test
  extreme data test
  abnormal data test
• validation rules
  -verification rules

Question 12

6 documentation

Answer 12

Technical documentation: for ppl who works/improves/maintain system
e.g programmer, analysts

User documentation: for ppl who uses system