Anybody have solution of it.beans computer class 8....?PLEASE
Answers
IT Beans is a computer book that is available for class I to X providing information on computers and its application with windows 7.
It is a General Knowledge book for the beginners dealing with computer usage and language.
One can get much information about the development of technology and the persons involved in them reading through it.
It does not need any solution book.
solution of ch 1
Chapter 1(Networking Concepts)-Class 8
CLASS –VIII
CHAPTER-1(NETWORKING CONCEPTS)
Formative Assessment
A. Fill in the blanks:
1. Communication
2. Data & Resources
3. Single Point
4. Nodes
5. Wireless Networking
6. MAN
B. State True or False:
1. F
2. T
3. T
4. T
5. F
6. F
C. Application based Questions:
1. Local Area Netwok(LAN)
2. Peer to peer Network
3. Wireless Network Cards
4. Bluetooth
Summative Assessment
A. Multiple choice questions:
1. Ehternet Network Card
2. Bluetooth
3. Nodes
4. Network
5. WAP
B. Answer the following questions:
1. A computer network can be defined as a group of computers and other peripheral devices that are linked together for sharing data and hardware resources. For example if one of the computers in a network has a printer attached to it then all the computers in that network can access the printer.
2. Uses of networking are:
i. Efficient use of storage media
ii. Preserving Information
iii. Reduction in Hardware Cost
iv. Efficiency
v. Redundancy
vi. Quickest Document Delivery
3. Difference between LAN and WAN is:
Stands For
Local Area Network
Wide Area Network
Covers
Local areas only (e.g., homes, offices, schools)
Large geographic areas (e.g., cities, states, nations)
Definition
LAN (Local Area Network) is a computer network covering a small geographic area, like a home, office, school, or group of buildings.
WAN (Wide Area Network) is a computer network that covers a broad area (e.g., any network whose communications links cross metropolitan, regional, or national boundaries over a long distance).
Speed
High speed (1000 mbps)
Less speed (150 mbps)
Data transfer rates
LANs have a high data transfer rate.
WANs have a lower data transfer rate compared to LANs.
Example
The network in an office building can be a LAN
The Internet is a good example of a WAN
4. Network Security means protecting data and resources from access by unauthorized persons. There are two levels of network security:
i. Login Security:You are given a unique login name and password.
ii. Rights Security:Based on user name read only or read write access is given.
5. In this network there is a main computer called server that provides services to clients and controls access to all the resources.
chapter 2
Ques 1. Differentiate the followings:
a. File vs. Database
b. Field vs. Record
c. Primary key vs. Composite key
Ques 2. Define templates.
Ans. Templates are pre-built database focused on a specific task. These can be used instantly and can also be downloaded.
Ques 3. What are the different database objects in Microsoft Access.
Ans. The different database objects in Microsoft Access are tables, queries, forms and reports.
Ques 4. Define DBMS.
Ans. DBMS stands for Database Management System. It is an application software, which is used to create, modify and extract data from a database. It manages and organizes the records in the form of tables.
Ques 5. Describe any five components of MS ACCESS 2010.
Ans.a. TITLE BAR: It is located at the top of the window and displays the name of the current database.
b. QUICK ACCESS TOOLBAR: This toolbar is present at the top left corner of the Access Window. it contains the most frequently used command buttons. By default, it has three buttons, which are save, undo and redo.
c. RIBBON: It contains various tabs, each with several groups of relevant commands. Some tabs appear when you work with certain objects like forms. Such tabs are called contextual tabs.
d. NAVIGATION PANE: This pane is present on the left side of the Access window. It displays the name of the objects used in the database, such as Table, Queries, Forms, reports, etc.
e. NAVIGATION BUTTONS: As the name suggests, it helps in navigating through the records. the navigation button displays the current record number in an object.
chapter 3
Ques 1. What is a Relational database?
Ans. A Relational database is a collective set of multiple data sets organized by tables, records and columns. relational databases establish a well-defined relationship between database tables.
Ques 2. What do you know about Field Property?
Ans. A field property is an attribute that defines the field's appearance or behavior within a database.
Ques 3. Differentiate between Text Data type and Memo Data type.
Ans.
