GCSE COMPUTER SCIENCE

HideShow resource information
What is an computer system?
A computer system is an input, a output and a processor
1 of 13
What is memory management?
The OS manages the transfer of data between the CPU, RAM and main storage
2 of 13
State advantages and disadvantages of open source software
Ads- Anyone can us it, users can adapt the software to meet their needs. DADS-Security issues
3 of 13
State advantages and disadvantages of cloud computing
ADS- Backing up data, more reliable than storing info on a hard drive as memory is easily lost, user doesn't need to buy latest software. DADS-Users can only access info if a network connection is prsent, few storage is possible
4 of 13
Explain how data is read from opticl media
The tracking mechanism moves the laser into the correct position ovr the CD, The CD is spun to ensure all data can be read, the laser is shone on to the disk, bumps/pits ar raised parts of the disk
5 of 13
Stretch the purpose of the CPU
Fetch, Decode and Execute
6 of 13
What is a computer network?
A computer network is two or more computers connected through a communication medium
7 of 13
State two advantages and two disadvantages of a computer network
ADS-Sharing resources saves money, Security is improved. DADS- Managing a lare network is complicated, Security issues
8 of 13
What is the handshaking process
Handshaking is an automated process of negotiation that needs to occur to establish a connection with a foreign device.
9 of 13
What is a global variable?
These are variables declared in the main body of the program and so can be accessed anywhere in the code
10 of 13
What are local variables
These are variables declared within a function or procedure and so can be acessed only by the code within that function or procedure
11 of 13
What is a motherboard
A motherboard links the CPU to the memory and other hardware
12 of 13
What is a clockspeed
This is the speed at which a microprocessor executes instructions
13 of 13

Other cards in this set

Card 2

Front

What is memory management?

Back

The OS manages the transfer of data between the CPU, RAM and main storage

Card 3

Front

State advantages and disadvantages of open source software

Back

Preview of the front of card 3

Card 4

Front

State advantages and disadvantages of cloud computing

Back

Preview of the front of card 4

Card 5

Front

Explain how data is read from opticl media

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Computing resources:

See all Computing resources »See all everything resources »