Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
15 Cards in this Set
- Front
- Back
- 3rd side (hint)
|
Describe the meaning of Validation and give an example. (2)
|
Validation checks if the inputted data is possible by using range checks, type check, format check, etc.
|
Format check, Type check, Field Check.
|
|
|
Describe the meaning of Verification and give an example. (2)
|
Verification checks if the data is correct by double entry inputs or proof reading.
|
Done by humans
|
|
|
State two types of data other than text that can be stored in a computer file.(2)
|
-Sound/Audio/Music
-Picture/Image/Graphics -Video -Date/Time -Numbers/Integer |
different types of FILES
|
|
|
Difference between LAN and WAN.(2)
|
Difference in reach
-LAN restricted to buildings -WAN more than one site geographically |
LAN-Small
WAN-BIG |
|
|
Four advantages of relational database over a flat file and give examples of each. (4)
|
-Independance of data
-no redundancy/duplication -Consistancy of data -Increased productivity |
|
|
|
Describe a Macro (2).
|
a small 'program' that automates a task or a sequance of instructions.
|
Automatic...
|
|
|
Where can a macro be used?(2)
|
in databases, to calculate records/items invoices automatically.
|
databases, reports, queries.
|
|
|
Describe four items that need to be considered when reviewing the backup procedures.
|
-Backup medium (external HD, USB flash disks)
-Location of backup -Frequency of backup -Testing of backup |
Exernal/location/ freq./ testing
|
|
|
what is meant by Generic packages?
(2) |
-An applications package
-Very common -Used in day to day business operations. |
Packages, used everywhere
|
|
|
Describe 2 advantages and 2 disadvantages of an EPOS (Electronic Point Of Sale)system. (4)
|
AD: automatic input, stock reports, check digits.
Dis:Porblems if system goes down, training, system needs to be up to date. |
Check digits, training, reports, up to date.
|
|
|
State an advantage of a CLI.
|
Does not require a lot of memory/process resources
|
Speed, memory
|
|
|
State 4 features of a GUI. Giving an advantage of each feature. (4)
|
Windows- different frames, easier switching application.
Icons- easier to open application and represents its job. -Menus-selecting commands from a predifined list. -Pointers-move around on the screen. Easier navigation. |
WIMP
|
|
|
4 Functions of an operating system (8).
|
Memory management
Management of security Multitask between programs Power management Reboot/boot up/ load up |
Think of school computers.
|
|
|
Making an effective presentation. (2)
|
Appropriate to venue
Content approperiate to intended audience |
|
|
|
What is encryption and firewall, giving examples of each (6).
|
Encryption disguises a message so that it cannot be read or understood by any unauthorised persons.
Firewall is a device designed to protect a network from intrusion via the internet connection(gateway machine) |
Disguising messages
Intrusion of internet connections. |
