Comp Hardware ( 3 ) Flashcards
(7 cards)
1
Q
What are examples of instructions held by a computer instruction set?
A
- Data transfer
- Arithmetic Operations
- Comparison Operators
- Logical Operators
- Branching
- Logical
- Halt
2
Q
How does the number of bit allocated to the opcode and operand vary?
A
Vary according to the architecture and word size of the particular processor type.
3
Q
What is the opcode?
A
- Binary digits representing the basic operation
* 2 digit code representing the addressing mode.
4
Q
What are the two types of addressing mode?
A
- immediate
* Direct
5
Q
What is immediate addressing?
A
The operand is the actual value to be operated on
6
Q
What is direct addressing?
A
The operand holds the memory address of the value to be operated on.
7
Q
What is serial data transmission?
A
Bits are sent via an interface one bit at time over a single wire from the source to the destination.
