technology
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A C++ vector is a container that can hold multiple values. In OSC++.010, we introduced vectors. In OSC++.011, we looped through them. Now we will learn four simple vector methods that let us add, remove, count, and check items. Start With a Vector Our vector is named scores. It currently contains three numbers. push_back(): Add…
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Grounding and bonding are related electrical-safety concepts, but they are not the same thing. Grounding connects an electrical system or equipment to earth or another grounding reference. Bonding electrically connects conductive parts so they remain at substantially the same potential and provide electrical continuity. This lesson follows OSETC.011: Lockout/Tagout and Energy Isolation. It is a…
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HIVE Digital Technologies is tightening the link between Bitcoin mining and AI infrastructure: the company says its mining operation is still the cash-generating foundation of the business even as BUZZ HPC scales GPU cloud services and HIVE prepares to wind down lower-output Bitcoin mining capacity in Sweden. The company’s September 10 update says HIVE had…
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Understand alternating current, cycles, frequency, period, RMS voltage, and phase with plain-language definitions and a worked paper exercise.
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The Windows hostname command answers a very simple but important technician question: what is this computer called on the network? This lesson follows Windows Command #19 – arp (Windows OS). Run hostname A computer might return: That text is the computer’s host name. Windows uses computer names to help identify machines, and technicians often need…
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The Linux uptime command gives you a quick answer to a basic technician question: how long has this computer been running? It also shows how many users are signed in and a short view of system load. This follows Linux Command #31 – stat (Linux OS). Run the Command A computer might respond with something…
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Python includes many useful tools, but sometimes your program needs something that is not included with Python itself. pip is the standard package installer used to add Python packages to your environment. This lesson follows OSPython.009: Virtual Environments. A virtual environment gives a project its own space; pip lets you install the packages that project…
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DHCP stands for Dynamic Host Configuration Protocol. Its basic job is simple: DHCP automatically gives a device the network settings it needs instead of making a technician type every setting by hand. This lesson builds on OSNTC.001: IP Addresses, OSNTC.002: Subnet Masks, OSNTC.003: Default Gateway, and OSNTC.004: VLAN Basics. A Simple Example You connect a…
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Read the Windows ARP cache, identify local IPv4-to-MAC mappings, and inspect your default gateway with a simple practice exercise.
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Fortinet builds purpose-designed Application-Specific Integrated Circuits, or ASICs, into FortiGate firewalls to accelerate networking and cybersecurity workloads that would otherwise consume resources on a general-purpose CPU. Fortinet refers to these chips collectively as Security Processing Units, or SPUs. Rather than forcing the main processor to handle every packet, encryption operation, security inspection and forwarding decision…
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Learn to inspect file size, permissions, and timestamps with Linux stat, then practice changing a file’s permissions and contents.
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Visit every value in an array or vector with a range-based for loop, then learn how copies and references affect the original collection.
