Home » Author Archives: Alfred Francis Osei

Author Archives: Alfred Francis Osei

Some Basic Computer Terms


Bit A logical data unit which has an attainable value of 0 or 1. Booting The process of initializing an operating system on a computer. Byte A unit of data storage consisting of 8 bits. Cycle An electrical cycle is basically a sine wave form during which electrical voltage will cycle from its lowest negative value to its highest positive ...

Read More »

What Are Expansion Slots?


Card slots on the computer motherboard are used for additional cards like sound cards, video cards, network cards, internal modems into the board. There are some motherboards today that include video and sound without the addition of an extra card. These cards slots today are mostly PCI type card slots. The cards that are plugged into a computer are the ...

Read More »

TCP/ IP Applications

The highest-level protocols within the TCP/IP protocol stack are application protocols. They communicate with applications on other internet hosts and are the user-visible interface to the TCP/IP protocol suite. All application protocols have some characteristics in common: They can be user-written applications or applications standardized and shipped with the TCP/IP product. Indeed, the TCP/IP protocol suite includes application protocols such ...

Read More »

TCP/IP Protocol Suite

  The Transmission Control Protocol/Internet Protocol (TCP/IP) protocol suite is the engine for the Internet and networks worldwide. Its simplicity and power has led to its becoming the single network protocol of choice in the world today. The architectural model of TCP/IP protocol suite is named for two of its important protocols which are Transmission Control Protocol (TCP) and Internet ...

Read More »

Networking Command Line Tools

Windows operating system has various in-built command line tools. These are some of the tools network administrators used for troubleshooting and also to retrieve information. PING Checks if you can connect to another server / computer It basically sends a couple of packets that get bounced or echoed off the computer back to your computer. It will then tell you ...

Read More »

New Tech Trends At SXSW 2018

The annual Austin, Texas conference SXSW brings together the best in film, music, and tech, with tracks in everything from health, AI, to social impact. This year, Cisco will be participating in the conference in a few ways. On March 9th, NBA Hall of Famer Clyde Drexler, ESPN’s Sage Steele, NBA deputy commissioner Mark Tatum and Cisco Chief Technologist Chintan ...

Read More »

OSI Model Layers Organization

  The Open Systems Interconnection (OSI) can be divided into three subgroups. The first three layers 1, 2, and 3 are the network support layers which deal with the physical aspects of moving data from one device to another device. The next layers 5, 6, and 7 are the user support layers which allow interoperability among unrelated software systems. And ...

Read More »