Topics in ICTIntroduction to routers in networking Wired router and wireless router explained What are core routers in networking? Virtual routers explained with its configuration Edge router explained with its types Domain Name System explained Types of computer network Functions of a router Computer scheme of work, SS1, First Term Computer scheme of work, SS1, Second Term Computer scheme of work, SS1, Third Term Introduction to computer networks Types of DNS server Open Systems Interconnect: Layers of the OSI Model Internet of Things (IoT), How IoT works, its advantages and challenges How to consume less data on android phone Best programming languages to learn The internet and world wide web explained Computer Hardware, Parts and Functions of Computer Hardware
Academic Questions in ICT
What is the first step towards disabling automatic image download on WhatsApp?
A. Click on the three dots on the top right hand corner
B. Click on the WhatsApp logo
C. Click on the settings icon on the top right corner
D. Click on the settings icon located on the to top-center of the app
E. Click directly on the storage and data icon located on the top right corner
F. Click on the mobile data usage icon located on the top right corner
The followings are ways to conserve data on android phones except _____.
A. Turning on data saving mode
B. Activating background apps
C. Use of Wi-Fi to update apps
D. Disable automatic image download on WhatsApp
E. Watch low resolution videos on youtube
F. Utilizing a reputable data saving app on google playstore
Twitter was launched in _____.
Due to the limitation of the Internet Protocol version 4 address, _____ was created.
The term _____ describes the billions of physical devices that will be connected to the internet.
A. Internet of Everything
B. Internet of Physical Devices
C. Internet of Things
D. Internet of Objects
F. Internetworking of Objects
A globally interconnected network system that utilizes TCP and IP to transmit data via various media is the _____.
A. World Wide Web (www)
The above image shows the _____ in a computer.
A. Expansion slot
B. Hard Disc Drive
C. Optical Drive
D. Power Supply Unit
F. Synchronous Dynamic Ram
The clock speed of a computer is the speed at which the _____.
A. HDD saves data
B. FDS saves data
C. SSD saves data
D. GPU receives and sends data
E. CPU processes data
F. RAM transfers data
Routers generally perform the followiing functions:
Routers carry out their routing functions by creating a routing table in its memory. In this regard, logical addressing are associated with routers.
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Amazing facts in ICT
YouTube is a video-sharing platform which commenced operations on February 14, 2005 (Valentine's day). Three former PayPal employees -> Chad Hurley, Steve Chen and Jawed Karim created the YouTube service (as a dating app) until Google bought it in November 2006 for US$1.65 billion
Smoking near an Apple (Mac) computer voids the warranty.
When you add /4 to the end of Facebook's URL, it will take you to Mark Zuckerberg.
You can try it on you own; or better still, try the link below:
Apple iPad retina display is actually manufactured by Samsung
The big five tech companies of the world as at 2018 are :
NOTABLE POINTS IN ICT
Python is one of the most popular programming languages, and will still remain relevant for a long time.
Python can be used for almost every kind of project including web application, machine learning, mobile and desktop applications, networking servers, APIs, scrapers, application’s backend and so on.
There is a great availability of third-party libraries for the python language. For this reason, it becomes one one of the easiest languages to learn as a beginner.
Believe it or not, Hypertext Preprocessor (PHP) still remains one of the most popular backend language for web applications, even though it is currently facing a stiff competition from python language.
Content Management Systems (CMS) like wordpress and drupal are written in PHP for its backend. Interestingly, some of facebook’s backend were also written in PHP.
As at 2019, the backend of more than 40% of active websites are powered with PHP. In fact, Len Academy is also powered by PHP for its backend.
If you wish to manipulate databases via Structured Query Language (SQL) with a programming language that has dynamic capabilities, then PHP is your language of choice.
Below are notable dates on internet evolution:
1983: The Domain Name System (DNS) created the '.com .edu .gov .org and .net' systems for naming websites
1985: The first registered domain name - 'symbolics.com' came into existence
1992: The first audio and video were uploaded over the internet
1992: The phrase 'surfing the Internet' became popular
1993: The number of websites reached 600
1993: White House and United Nations go online
1994: Microsoft creates a Web browser for Windows 95
1994: Yahoo! is created by Jerry Yang and David Filo
1995 Amazon and eBay were launched online
1996: 'The Dancing Baby' becomes the first viral internet video
1997: Netflix is founded by Reed Hastings and Marc Randolph
1998: Google search engine came into existence
2003: The worm 'SQL Slammer' spread over the internet within 10 minutes
2004: Facebook goes online
Computer hardware is the collection of physical parts of a computer system.
Physical parts of a computer are those parts that you can see and touch. It may also be referred to as the 'equipment of the computer'.
When the computer case is opened (with a screwdriver), one would see the different hardware components inside of it. It's important to state that some other hardware components are present outside the computer case; and these are termed peripherals.
Below are hardware components seen inside the computer case:
Central Processing Unit (CPU)
Graphics Processing Unit (GPU)
Power supply Unit (PSU)
Peripheral Component Interconnect (PCI) slots
Network Interface Card (NIC)
Random Access Memory (RAM)
Solid State Drive (SSD)
Optical Disc Drives (external present)
USB port, PS2 port, Ethernet port and other ports
Expansion Ports / Slots
Hardware components seen outside the computer case are called peripherals. The peripherals are grouped into the following:
Input devices: They provide information to the computer.
Output devices: Brings out information from the computer.
Storage devices: They store information or data.
Below are examples of some peripherals:
Touch Pad (input)
Universal Serial Bus (USB) flash drive or memory card (storage)
Hard disc drive (storage)