For Data and analysis

1. GREGORY UNIVERSITY UTURU
DEPARTMENT: COMPUTER SCIENCE
COLLEGE: NATURAL AND APPLIED SCIENCES

2. • ff
S/N Topic Lecturer
No 1 Logic gates Mr Chima
No 2 Networking Mr Mentus
No 3 Computer Programming 1 MrThankgod
No 4 Computer Programming 2 MrThankgod

3. LOGIC GATES

4. Definition of logic gates
• A logic gate is an electronic device that creates logical decisions depends on the various
combinations of digital signals accessible on its inputs. A digital logic gate can have greater
than one input signal but has only one digital output signal.
• A logic gate is a digital gate that allows data to be transferred. Logic gates, use logic to
determine whether or not to pass a signal. Logic gates, on the other hand, govern the flow of
information based on a set of rules.

5.  For AND Gate – If both the inputs are high then the output is also high
 For OR Gate – If a minimum of one input is high then the output is High
 NAND Gate – If the minimum one input is low then the output is high
 NOR Gate – If both the inputs are low then the output is high.
 NOT Gate(inverter) - only one input and one output, converts 1 to 0 and 0 to 1

6. AND LOGIC GATE

8. NOT LOGIC GATE

10. NOR LOGIC GATE

11. COMBINATIONAL LOGIC GATES

12.  Definition of Network and Networking
 Networking devices used
 Colour scheme of cross over and straight through cables
 Simulation of practical done on CISCO Packet tracer

13. Definition of Network and Networking
• What is a Network? A network consists of two or more computers that are
linked in order to share resources (such as printers and CDs), exchange files,
or allow electronic communications.
• Networking refers to the total process of creating and using computer
networks, with respect to hardware, protocols and software, including wired
and wireless technology
• Networking can be defined as the connection of network devices in order to
form a network in which hardware devices are shared

14.  Router is a network layer (Layer 3) of the OSI reference model device that means it can
connect multiple computer networks via wired or wireless connections. Network router
can receive, analyze, perform the traffic directing functions and forwards data packet
from one network to its destination node.
 A switch, in a networking is a high-speed networking device that receives TCP/IP data
packets then filters them and forwards to their destination. Most switches have 12 to
24 ports but many are modular can have several hundred ports.

15. Networking devices used
 RJ-45: The eight-pin RJ45 connector is a standardized interface which often
connects a computer to a Local Area Network (LAN). This type of connector
was originally developed for telephone communications but is now used in a
range of applications. The abbreviation, RJ45, stands for Registered Jack-45.
 Registered Jack-11) A telephone interface that uses a cable of twisted wire
pairs and a modular jack with two, four or six contacts. RJ-11 is the common
connector for plugging a telephone into the wall and the handset into the
telephone.

16. Straight
Through
Cross over
Orange/white Green/White
Orange Green
Green/White Orange/White
Blue Blue
Blue/White Blue/White
Green Orange
Brown/White Brown/White
Brown Brown

17. Network Silmulation on Packet Tracer

18.  Definition of programming
 Programming languages learnt
Html programming language
Html in Cascading style sheet(css)
 Applications of the following programming languages

19. Definition of programming
 A language used to write instructions for the computer. It lets the
programmer express data processing in a symbolic manner without regard to
machine-specific details.
 A programming language is a computer language programmers use to develop
software programs, scripts, or other sets of instructions for computers to
execute.
 Programming is the use of a sequence of code from a certain programming
language to give instructions to the computer

20. HTML PROGRAMMING LANGUAGE
• HTML is a type of markup language. It encapsulates, or “marks up” data
within HTML tags, which define the data and describe its purpose on the
webpage. The web browser then reads the HTML, which tells it things like
which parts are headings, which parts are paragraphs, which parts are links,
etc.
• All HTML documents must start with a document type declaration:
<!DOCTYPE html>.
• The HTML document itself begins with <html> and ends with </html>.
• The visible part of the HTML document is between <body> and </body>.

21. Reference to visual studio code……

22. cascading Style sheet
 CSS is the language we use to style an HTML document.
 CSS describes how HTML elements should be displayed.
 With CSS, you can control the color, font, the size of text, the spacing between
elements, how elements are positioned and laid out, what background images or
background colors are to be used, different displays for different devices and screen
sizes, and much more
 The word cascading means that a style applied to a parent element will also apply to
all children elements within the parent. So, if you set the color of the body text to
"blue", all headings, paragraphs, and other text elements within the body will also
get the same color (unless you specify something else)!

24.  About Javascript
 Programming with Javascript

25.  JavaScript (often shortened to JS) is a lightweight, interpreted, object-
oriented language with first-class functions, and is best known as the
scripting language for Web pages, but it's used in many non-browser
environments as well.
 Object-oriented programming (OOP) is a style of programming
characterized by the identification of classes of objects closely linked with
the methods (functions) with which they are associated. It also includes
ideas of inheritance of attributes and methods.
 Javascript is used by programmers across the world to create dynamic and
interactive web content like applications and browsers. JavaScript is so
popular that it's the most used programming language in the world, used
as a client-side programming language by 97.0% of all websites.

26.  Javascript variabes
 Javascript let
 Javascript Object
 Javascript Datatypes
 Javascript operators…..etc
Reference to Visual studio code…….