Different types of networks Different types of (private) networks are distinguished based on their size (in terms of the number of machines), their data...
Introduction to the concept of a bus Characteristics of a bus Bus subassembly The primary buses The chipset Introduction to the concept of a bus A...
Transmission modes A given transmission on a communications channel between two machines can occur in several different ways. The transmission is...
What's an RJ45 plug? A network card may have several types of connectors, with the most common being: An RJ45 connector; A BNC connector (coaxial cable)....
Introduction Operation Instructions Registers Cache Memory Control Signals Functional Units Transistor Integrated Circuits Families Instruction...
Introduction to Formulas The main use of a spreadsheet is to automate calculations, which means using cells to perform operations based on values in other...
Why smileys? When typing words on the Internet, it's not always easy to convey feelings, emotions, or concepts like humor to the people you're...
What is a network card? What is the role of a network card? Preparing data The role of the identifier Other network card functions Sending and...
Introduction to 2-Tier Architecture 2-tier architecture is used to describe client/server systems where the client requests resources and the server...
Introduction to Telnet Protocols and implementation Running Telnet Commands in Telnet Introduction to Telnet Telnet is a protocol for emulating a...
Why set up a local area network? When you have several computers, it can be convenient to connect them to each other to create a local area network (LAN)....
Introduction to Wi-Fi (802.11) The IEEE 802.11 specification (ISO/IEC 8802-11) is an international standard describing the characteristics of a wireless...
DB9 connector The DB9 (originally DE-9) connector is an analog 9-pin plug of the D-Subminiature connector family (D-Sub or Sub-D). The DB9 connector is...
What is office automation? The term office automation refers to all tools and methods that are applied to office activities which make it possible to...
Front Office/Back Office The terms Front Office and Back Office are generally used to describe the parts of the company (or of its information system) that...
Email, as simple as it is to use, relies on a more complicated set of operating procedures than that of the Web. For most users, its operation is...
Structure of an email An email has three basic parts: The header, a set of lines containing information about the message's transportation, such as the...
What does ISP mean? ISP literally means Internet service provider or provider. It is a service (most of the time paid for) which allows you to connect to...
Introduction to motherboards Characteristics Motherboard form factor Integrated components The chipset The CMOS clock and battery The BIOS The...
Symmetric encryption Symmetric encryption (also called private-key encryption or secret-key encryption) involves using the same key for encryption and...
