CS: P1 Revision (2)

CS: P1 Revision (2)

1. Secondary Storage

   • a non-volatile memory that is not directly accessible by the CPU which includes: magnetic, optical and solid state storage

2. LAN

   • Local Area Network - Network over a small geographical area

3. WAN

   • Wide Area Network - Network over large geographical area

4. WiFi Performance

   • The lower amount of these factors, the better the perforamance:
     • the number of devices on the network
     • the bandwidth of the transmission medium
     • the type of network traffic
     • the number of transmission errors
     • Network Latency

5. Client Server

   • relationship between two computers in which one, the client, makes a service request from another, the server
     • The client is dependent on the server to provide and manage the information

6. Peer to Peer

   • a network by which computers operated by individuals can share information and resources directly without relying on a dedicated central server
     • In peer-to-peer computing, every client can be a server

7. Security Threats - Steps to prevent

   • Passwords
     • A secret word or phrase created by the user to gain access to a place on a device
   • Firewall
     • A system to prevent unknown / unauthorised systems to connect to a private network that connect to the internet
   • Encryption
     • The process of making information or a piece of data into a code to prevent unwanted access on the internet or a device
   • Anti-Virus
     • A software to detect and destroy computer viruses that may cause damage to your computer device and files