Performs specified calculations from the instruction
2 of 26
Control Unit
Controls the behaviour of other components via control signals
3 of 26
Register
A small set of data holding places that are part of a computer processor
4 of 26
Memory Data
Contains most recent data item
5 of 26
Memory Access
Contains address of next part of memory to be accessed
6 of 26
Instruction
Contains current instruction
7 of 26
Accumulator
Performs intermediate results of calculation
8 of 26
Bit
Binary digit
9 of 26
Byte
8 bits; store single character of information
10 of 26
Word
The longer the word length, the more the processor can do
11 of 26
Data Bus
Transfers data from memory to processor
12 of 26
Address Bus
Specifies a physical address in memory
13 of 26
RAM
Temporarily stores current program data
14 of 26
ROM
Stores bootstrap program for starting up the computer
15 of 26
RAM
Volatile
16 of 26
ROM
Non-volatile
17 of 26
Cache
For regularly used instructions or data. Extremely fast
18 of 26
Input
Introduce data to a computer
19 of 26
Output
Produce input data in a humanly intelligible form
20 of 26
Interfacing
Communication between devices with drivers
21 of 26
Handshaking
Check if both devices are ready to send/receive signals
22 of 26
Network
Number of wirelessly interconnected computers, allowing for communication and sharing of resources
23 of 26
Bus Topology
Cost effective (minimal cabling), easy to add new devices to the network. Network is degraded when too many devices are being used, a break in the backbone disrupts the network
24 of 26
Ring topology
Not dependant on a central hub, shared access means all devices have the same network speed. A break in the cable disrupts the network, fault detection is difficult, impossible to keep network running while adding more devices
25 of 26
Star topology
Ig one cable fails the other devices will still operate, more devices can be added easily without disrupting the network. Higher costs due to more cabling, dependence on central hub; if this fails the entire network will not operate
26 of 26
Other cards in this set
Card 2
Front
Performs specified calculations from the instruction
Back
Arithmetic Logic Unit
Card 3
Front
Controls the behaviour of other components via control signals
Back
Card 4
Front
A small set of data holding places that are part of a computer processor
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