CS - Data Rep - Binary Flashcards
1
Q
What is Machine Code?
A
The language that computers use to understand and process information using binary
2
Q
Describe the denary system and the binary system
A
- denary = base 10 system, uses numbers 0-9
- binary = base 2 system, uses the symbols 0 and 1
3
Q
What is an Overflow error?
A
When the result of a binary calculation is too long for a computer to process.
If the answer to a calculation is 9 bits but a byte an only fit 8 bits
4
Q
What is a bit?
A
the smallest unit of data that a computer can process and store.
short for binary digit
5
Q
What is a byte and what is a nibble?
A
Consists of 8 adjacent binary digits, each of which consists a 0 or 1. A nibble is half of this (4 bits)
6
Q
What do the following formulas work out?
* 2ⁿ
* 2ⁿ - 1
A
- 2ⁿ = Num of bit patterns
- 2ⁿ - 1 = Highest num of binary codes
7
Q
What is the highest and lowest binary code that is avaliable?
A
0 - Lowest
255 - Highest
(256 different binary codes)
