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10.1 IPEKA Puri Informatics <Nathan> - Coggle Diagram
10.1 IPEKA Puri Informatics <Nathan>
Computer system
Hardware
Computer hardware refers to the physical components of a computer system, essential for its functionality. Understanding these elements is crucial for grasping the basics of computing and technology.
Key components
CPU
Memory
Input vs output
Output
Visual and audio results from computer operations
Input
Essential tools for user interaction with computers
Types of computer system
Laptop Computers
Laptops provide portability, combining essential components into a compact design. They are suitable to users who require mobility without sacrificing performance for everyday tasks and entertainment.
Server Systems
Servers are specialized computers that manage resources and provide services to other computers over a network. They handle multiple requests simultaneously, ensuring data accessibility and reliability.
Desktop Computers
Dektop computers are designed for stationary use, featuring powerful harfware components. They offer high performance for tasks such as gaming, graphic design, and productivity applications
Computer network
Binary code
What is Binary code
A binary unit is also known as a “bit.” It is the smallest unit of digital information that a computer can understand. It is stored in a series of zeros and ones. A computer thinks by relying on zeros and ones for all information.
Why Binary code
Computers can compute the meaning of binary strings very quickly and translate them into numbers or letters. Text, images, sound, and video are converted into binary before being processed by the computer.
Extra information
Bit VS Byte
While a bit is the smallest unit of information that a computer can understand, a byte is a string of 8 bits. A byte is also known as a unit of memory size.
Network security
Importance of network security
Data protection
Protecting sensitive information, including customer data, financial records, and intellectual property. System Integrity Ensuring the reliability and stability of network systems by preventing attacks that could disrupt operations.
System Integrity
Ensuring the reliability and stability of network systems by preventing attacks that could disrupt operations.
Common cyber threats
Phising
Deceptive emails or websites designed to trick users into revealing sensitive information.
Malware
Viruses, worms, ransomware, and other malicious software that can damage systems and steal data.
Denial of service
Attacks that overwhelm network resources, making them unavailable to legitimate users.
Access control measures
Authentication
Authorization
Firewall and intrusion detection
Firewalls
Act as a barrier between a network and the outside world, blocking unauthorized access.
Intrusion detection
Monitors network traffic for suspicious activity and alerts administrators to potential threats.
Encryption and VPNs
VPNs
Encryption
Wireless communication
Importance of wireless network
Cellular networks
Short range wireless
Infrared Technologies
Types of connection
GPRS (General Packet Radio Service)
EDGE (Enhanced data rates for GSM Evolution)
3G
4G
5G
Bluetooh
Purpose
Enables wireless connection between devices
Range
Up to 100 meters indoors
Wifi
Purpose
Provides high speed internet for devices
Range
Wifi range can differ but it usually reaches 91 meters indoor
The internet
Benefits of computer network
Sharing data and information
Sharing hardware (printers and such)
Faster communication
Network types
LAN (Local Area Network)
MAN (Metropolitan Area Network)
WAN (Wide Area Network)
PAN (Personal Area Network)
CAN (Campus Area Network)
SAN (Storage Area Netwrok)
Computer network components
Hardware
Software
User
Network Types
Wireless
Wired