часть 6

DNS (Domain Name System)

• DNS converts domain names to IP addresses.
• It doesn't directly manage data.
• It does not protect the network.
• It assists network device identification.

Algorithm Types

• Iterative algorithms repeat the same operations in each step.

Computer Performance Factors

• Processing speed and memory capacity influence computer performance.
• Network speeds also have an impact.
• The operating system type matters, but less directly.
• Hard drive type does play a role.

Memory Measurement

• Computer memory is measured in bytes.

Computer Virus Protection

• Anti-virus software is used to protect computers from malicious programs.

Computer Connections

• Data connections use special buses, but different types exist.

Flash Memory

• Flash memory stores data consistently, independent of power.

Flash Memory Characteristics

• Flash memory keeps data permanently and does not rely on a power source.

System Clock Frequency

• Measured in Hertz.

Operating System

• The core application software.

Computer Memory Levels

• Memory systems include cache, RAM, and flash memory.

USB Functionality

• USB facilitates fast data transfer and device connectivity.

Network Topologies

• Star topologies are generally more stable than others.

Motherboard Connections

• Special buses connect principal components on the motherboard.

IP Addresses

• IP addresses are necessary for device identification in a network.

Data Retention in RAM

• Data in RAM is temporary. When a computer is powered off or reset, the memory is cleared.

Microprocessor Components

• Arithmetic Logic Unit (ALU) is a key component.

Processor Performance Enhancement

• RAM and the processor are critical.

Read-Only Memory (ROM)

• ROM is read-only memory, meaning its contents are permanently stored and cannot be changed.

DHCP Function

• DHCP automatically connects devices to a network.

Network Connection Testing

• Tools such as ping are used for network problems and checking.

External Device Interfaces

• USB ports connect devices to a PC.

Motherboard Components

• Key components such as the processor, memory, and network card connect directly to the motherboard.