eoy computer(unfinished)
- Created by: Connor_Walton
- Created on: 25-05-18 12:01
View mindmap
- End of Year Test
- System Architecture
- Von Neumann Architecture
- Memory, holding both data and program
- Control Unit
- Arithmetic Logic Unit
- Input
- Output
- Control Unit
- Memory, holding both data and program
- Von Neumann Architecture
- Wired and Wireless Nrtworks
- LAN is a local area network
- Advantages
- Quick and easy to set up.
- Cheap to set up and maintain
- Relatively fast
- Disadvantage
- Small area only
- Relatively few computers/ users
- Advantages
- WAN is a wide area network
- Advantage
- Can be any size, even global
- Allows many more computers/ much more intricate and detailed
- Disadvantage
- More expensive to set up
- Needs ongoing maintenance
- Advantage
- Types of Network
- Bus
- Advantage--Simple
- Disvantage-- Slow
- Star
- Advantage-- Fast
- Disvantage-- Expensive
- Ring
- Advantage-- Cheap
- Disvantage-- Stops if it breaks
- Bus
- Components in a Network
- Computers
- Server
- Router
- Switch
- Printer
- LAN is a local area network
- Network Topologies, Protocols and Layrers
- Memory and Storage
- ROM is used to store the start up process.
- RAM is volatile, ROM is not.
- RAM stores programs that are in use. eg, if you are using word, it will be stored there
- Virtual Flash memory is used when the RAM is full and needs more space to run. It usually takes control of secondary storage
- Flash memory is storage. USB sticks are a form of flash memory
- Secondary storage is additional storage, such as a hard drive or an SSD.
- Types of Storage
- Solid state storage is SSD, it is quick but expensive.
- Magnetic is like a hard drive (HDD) cheap, slow but lots of storage
- Optical storage is accessible by everyone because they are discs, cheap. They are vulnerable to scratches
- System Architecture
- Memory and Storage
- ROM is used to store the start up process.
- RAM is volatile, ROM is not.
- RAM stores programs that are in use. eg, if you are using word, it will be stored there
- Virtual Flash memory is used when the RAM is full and needs more space to run. It usually takes control of secondary storage
- Flash memory is storage. USB sticks are a form of flash memory
- Secondary storage is additional storage, such as a hard drive or an SSD.
- Types of Storage
- Solid state storage is SSD, it is quick but expensive.
- Magnetic is like a hard drive (HDD) cheap, slow but lots of storage
- Optical storage is accessible by everyone because they are discs, cheap. They are vulnerable to scratches
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