IB Computer Science (SL) Study Guide
Exam Questions And Actual Answers.
A-D converter - Answer Analog-digital converter; "digitizer"
address bus - Answer pathway from memory to processing unit carrying addressin in memory to and
from where data is transferred
arithmetic and logic unit (ALU) - Answer part of the CPU that performs arithmetic, logic, and similar
operations
CPU - Answer contains ALU, control unit, and registers
control unit - Answer controls flow of data into CPU and its operation ?
registers - Answer temporary storage location capable of holding one word
analog data - Answer continuous data
bit - Answer binary digit
byte - Answer 8 bits
BMP - Answer files in bitmap form
bubble sort - Answer ...
buffer - Answer portion of storage used to hold input or output data temporarily
, bus - Answer pathway used for sending signals between internal components of a computer;
components may share same bus but can be transmitted simultaneously
cache - Answer part of main store between main memory and processor; holds copy of data and
instructions that are likely to be used next by the processor; faster than main memory
check sum - Answer sum generated using individual digits of a number and employed as an error-
detecting device
client - Answer desktop computer or terminal used to access a computer-based system
client-server - Answer network architecture where a system is divided between server taskes
performed on instructions received from clients requesting data
compiler - Answer translates a program into machine language, returning a list of syntax errors
afterwards; produces an executable file that does not require the compiler
interpreter - Answer tranlsates a program into machine language line-by-line, stopping if a syntax error
is reached; does not produce independently executable program
data compression - Answer method of reducing size of data; all redundancy is removed to reduce
storage needed or to speed up transfer
data integrity - Answer correctness of data after processing, storage, or transmission
data packet - Answer part of a transmitted message that is sent separately; might include check digits,
destination adress, etc
data security - Answer method of ensuring that data is correct, safe, and cannot be read or accessed by
those without permission
Exam Questions And Actual Answers.
A-D converter - Answer Analog-digital converter; "digitizer"
address bus - Answer pathway from memory to processing unit carrying addressin in memory to and
from where data is transferred
arithmetic and logic unit (ALU) - Answer part of the CPU that performs arithmetic, logic, and similar
operations
CPU - Answer contains ALU, control unit, and registers
control unit - Answer controls flow of data into CPU and its operation ?
registers - Answer temporary storage location capable of holding one word
analog data - Answer continuous data
bit - Answer binary digit
byte - Answer 8 bits
BMP - Answer files in bitmap form
bubble sort - Answer ...
buffer - Answer portion of storage used to hold input or output data temporarily
, bus - Answer pathway used for sending signals between internal components of a computer;
components may share same bus but can be transmitted simultaneously
cache - Answer part of main store between main memory and processor; holds copy of data and
instructions that are likely to be used next by the processor; faster than main memory
check sum - Answer sum generated using individual digits of a number and employed as an error-
detecting device
client - Answer desktop computer or terminal used to access a computer-based system
client-server - Answer network architecture where a system is divided between server taskes
performed on instructions received from clients requesting data
compiler - Answer translates a program into machine language, returning a list of syntax errors
afterwards; produces an executable file that does not require the compiler
interpreter - Answer tranlsates a program into machine language line-by-line, stopping if a syntax error
is reached; does not produce independently executable program
data compression - Answer method of reducing size of data; all redundancy is removed to reduce
storage needed or to speed up transfer
data integrity - Answer correctness of data after processing, storage, or transmission
data packet - Answer part of a transmitted message that is sent separately; might include check digits,
destination adress, etc
data security - Answer method of ensuring that data is correct, safe, and cannot be read or accessed by
those without permission
