OCR | A-level Computing | Glossary

Currently only up to 30 key terms. More will be added.

Key words and their definitions as taken from the glossary of the OCR textbook

?
F N R R R V S M R G V K T D P T J X N H R
W J U E G Q I N S T R U C T I O N S E T C
D A T A C O R R U P T I O N I G B G H X U
X Y L B M O B B H P W C D S B J U B S S T
T M P Y J D E C O M P O S I T I O N S F O
T C Q S H R W I D R G V J T U Y O T Y A H
E Y M U D Y N A M I C T Y P I N G V W K D
G J B R O P Q O I E D L T U S S P H Y W R
R L I Y F P B N E A N H L T W R D P C Q R
O L K L T D A T A R E D U N D A N C Y P J
D I R E C T D I S C R I M I N A T I O N B
N O R M S D A T A I N T E G R I T Y R I J
N T S T E A A E S U O A E B F H Y Q K G E
D A T A D I C T I O N A R Y C I I O M J T
G W H T C K L H S E V E Y X G G H B W E J
B M U T W I D A T A S E C U R I T Y Q R G
I L O G I C P R O G R A M M I N G F M R T
K J A W X I C I I T C Y I L W G W B K Y C
K G C B M W I T L T S X A C A T M F U N F
T O B B I E D T S E D Y R C A K D G R R Q
V Q B R W T K N S D D T H L Q X M W R L W

Clues

  • An unnecessary repetition of data. This is avoided in databases because of the risk of inconsistencies between different copies of the same data. In relational databases, this is avoided through the use of data normalisation (4, 10)
  • Caused by technically based events such as hardware failure, software error, electrical glitches, malpractice and operator error (4, 10)
  • Instead of stating what the problem should do, the problem is expressed as a set of facts and rules used to find a given goal. The most commonly used language is prolog (5, 11)
  • Keeping data safe. Database software is designed to have in-built data security to minimise the risk of malpractice, although errors can still occur (4, 8)
  • Metadata; that is, data about data. In a relational database, it is the sum total of information about the tables, the relationships and all the other components that make the database function (4, 10)
  • The breaking down of a problem into smaller parts which are easier to solve. The smaller parts can sometimes be solved recursively. (13)
  • The collection of opcodes a processor is able to decode and execute (11, 3)
  • The maintenance of a state of consistency in a data store. Broadly meaning the data in a data store reflects the reality it represents. It also means the data is as intended and fit for purpose (4, 9)
  • Treating someone with a protected characteristic less favourably than others (6, 14)
  • Will create a variable as required during run time without the need to do so in advance. The appropriate data type is assigned automatically and this makes typing faster but mistakes easier to make (7, 6)

Comments

No comments have yet been made

Similar Computing resources:

See all Computing resources »See all Communication and networking resources »