unit 1.1 Number systems Flashcards
1
Q
What does data have to be converted into in order to be processed by a computer?
A
binary
2
Q
How is data processed and stored?
A
Using logic gates to process digital data and stored in registers
3
Q
bases of number systems
A
- Denary is a base 10 system
- Binary is a base 2 system
- Hexadecimal is a base 16 system
4
Q
Why is hexadecimal used? Example how it is used.
A
It is easier for humans to understand than binary and is a shorter representation of the binary.
- E.g it is used to debug code in a computer game as easier to identify errors.
5
Q
when does an overflow error occur?
A
If the value is greater than 255 in an 8-bit register.
6
Q
Why does an overflow error occur?
A
A computer or device has a predefined limit that it can represent or store, for example 16-bit.
An overflow error occurs when a value outside that limit should be returned.
