ACCRA BUSINESS SCHOOL
PROFESSIONAL GRADUATE DIPLOMA IN IT
ID (BCS 1121002)
Assignment1
AND GATE
1. a) Develop the truth table for a 3-input AND gate.
Truth table for a 3 input AND gate
A
B
C
X
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
1
1
0
0
1
1
1
1
b) Determine the total number of possible input combinations for a 4-input AND gate.
A 4-input AND gate possible combinations
(N = 4n)
N = 42
N = 16
Therefore will be 16 possible combinations for a 4-input AND gate with one one outcome
as 1 and the rest as 0.
(c)Develop the truth table for a 4-input AND gate.
Truth table for a 4 input AND gate
A
B
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
C
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
X
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
ACCRA BUSINESS SCHOOL
PROFESSIONAL GRADUATE DIPLOMA IN IT
ID (BCS 1121002)
OR GATE
d) Develop the truth table for a 3-input OR gate.
Truth table for a 3 input OR gate
A
B
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
0
C
0
1
0
1
0
1
1
0
X
0
1
1
1
1
1
1
1
e) Develop the truth table for a 4-input OR gate.
Truth table for a 4 input OR gate
A
B
0
0
1
1
1
0
1
0
0
0
0
0
1
1
0
1
1
0
1
0
1
1
1
1
0
0
0
0
1
1
0
1
C
0
0
1
0
0
0
1
1
0
1
0
1
1
0
0
1
D
0
1
0
0
1
0
1
1
1
1
0
0
1
1
1
0
X
0
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
NAND GATE
f) Develop the truth table for a 3-input NAND gate.
Truth table for a 3 input NAND gate
A
B
0
0
0
0
0
1
0
1
1
1
1
0
1
1
1
0
C
0
1
0
1
1
1
0
0
X
1
1
1
1
0
1
1
1
ACCRA BUSINESS SCHOOL
PROFESSIONAL GRADUATE DIPLOMA IN IT
ID (BCS 1121002)
NOR GATE
g) Develop the truth table for a 3-input NOR gate.
Truth table for a 3 input NOR gate
A
B
0
0
0
1
1
1
1
1
0
0
1
0
1
0
0
1
C
0
0
0
1
1
0
1
1
X
1
0
0
0
0
0
0
0
h) Develop the truth table for a 4-input NOR gate.
Truth table for a 4 input NOR gate
A
B
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
1
1
1
1
1
1
1
1
C
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
D
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
X
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
ACCRA BUSINESS SCHOOL
PROFESSIONAL GRADUATE DIPLOMA IN IT
ID (BCS 1121002)
(2) How to share files within a network.
Once all computers are connected to the same network, you can share files or folders in other
to make it accessible for all computers in the network to make use of that file.
These steps are involved when sharing a file.
1.
2.
3.
4.
5.
6.
7.
8.
The file must be in a folder
Right click the folder containing the file
Select properties
Select sharing
Click on advance sharing
Check the share this folder checkbox
Choose the number of people you and them to have access to the file
After click the share option and name the computers or choose everyone.
(3) What is the difference between file and folder
In simple terms, a file stores data. Such data can be in the form of image, numbers, text,
hypertext etc which can also be termed as documents. Files are created by using a program on
the computer and the differences in files are known by the file’s extension.
Folder on the other hand is a storage space for files and is a creation of the operating system.
Folders can also be termed as directories. A folder can be created within another folder and
this is termed as a subfolder.
(4) Why don’t we have windows 9
Windows 9 was skipped because they didn’t want customers to associate the new windows to
the windows 8.1 and also incremental step from Windows 8.1 but rather a “material step”.
(5) What is metadata?
It is a set of data that describes and gives information about other data. This comes in various
forms and structure such as,
Administrative metadata: the information to help manage a resource, like resource type,
permissions, and when and how it was created.
Descriptive metadata: the descriptive information about a resource. It is used for discovery
and identification. It includes elements such as title, abstract, author, and keywords.
Structural metadata: This describes how data is organised or structured. For example, how
pages are ordered to form chapters.
ACCRA BUSINESS SCHOOL
PROFESSIONAL GRADUATE DIPLOMA IN IT
ID (BCS 1121002)
Legal metadata — provides information about the creator, copyright holder, and public
licensing, if provided.
Reference metadata: the information about the contents and quality of statistical data.
Statistical metadata: This shows how data collection and procedure are done. It can also be
termed as process data.
(6) What is the difference between bits and bytes?
Bits and bytes are both part of storage capacity. Bits are the smallest unit of storage capacity
and it is represented by 0’s or 1’s (binary). This is the main standards with which computers
process and work on data and also communication among hardware components is done.
Bytes is a combination of eight (8) bits and computers uses bytes for storing of data and
characters and they can hold up to 265 different values.