CHAPTER 1 – NUMBER SYSTEM

 CHAPTER 1 – NUMBER SYSTEM

D) Define the following:

i) BIT

The smallest unit in computer processing is called BIT

ii) BYTE

A group of 8 bits is called a byte.

iii) NIBBLE

A collection of bits on a 4-bit boundary is a nibble

 

E) Differentiate between the following:

1. Binary Number system and Decimal Number system

Binary Number system

Decimal Number system

1. It is a base 2 number system

1. It is a base 10 number system

2. It has only two digits 0 and 1

2. It has digits 0 to 9

 

2. Octal Number system and Hexadecimal Number system

Octal Number System

Hexadecimal Number System

1. It is a base 8 number system

1. It is a base 16  number system

2. It has digits 0 to 7

2. It has only digits 0-15 where digits 0-9 are represented as 0-9 and 10 as A, 11 as B, 12 as C, 13 as D, 14 as E and 15 as F

 

F) Answer briefly:

1. What do you mean by number system? Mention its types.

Number System is a way to represent numbers in a computer system.

It can be classified into two types namely Positional Number System and Non-Positional Number System.

Positional Number System can be further classified as Decimal Number System, Binary Number System, Octal Number System and Hexadecimal Number System.

 

2. Write the steps to convert from binary to decimal equivalent.

The steps to convert a binary number to its decimal equivalent are as follows:

a)    Note down the place value of each digit

b)    Multiply each digit with 2 to the power of its place value

c)     Add all the products to get the number

Popular posts from this blog

CHAPTER 3 - ANIMATE - LAYERS AND ANIMATION

Image
CHAPTER 3: ANIMATE – LAYERS AND ANIMATION D. Differentiate between the following 1. Keyframe and Blank Keyframe Keyframe is the frame which has an animation in it or where a new symbol appears in the timeline Blank Keyframe is a placeholder for symbols we plan to add later or to clearly leave the frame blank   2. Motion Tween and Shape Tween Motion Tween allows us to easily animate the motion of an object. Shape Tween is used to morph from one shape to another.   E. Answer in 1-2 sentences 1. What is layer? Write its type. Layers are the key components to work with graphic objects and animation. They add depth to the graphic objects. Types of layer are normal layers, guide layers, and mask layers.   2. Why do we add frames in Animate? Frames are individual pictures in a sequence of images. It is added to add time to animate movie.   3. What do you understand by symbols and instances? A symbol is an object in Animate. It can be a graphic ...
Read more

CHAPTER 9: PYTHON - CONDITIONAL CONTROL STRUCTURES AND TURTLE

        PYTHON - CONDITIONAL CONTROL STRUCTURES AND TURTLE D. Define The following 1. Assignment operator: These operators are used to assign value to the variables.   2. Logical operator: These operators perform Logical AND, Logical OR and Logical NOT operations.   E. Differentiate between the following: Simple Statement : Expression Statement A simple statement lies entirely within a logical line. We do not need to place more than one statement on a single logical line with a semicolon (;) as the separator. Python recommends one statement per line to make programs more readable. Expression is a combination of variables, values and operators. It is a type of instruction that combines values and operators and evaluates down to a single value.   F. 1. What is indentation? Indentation is used to structure Python programs. Code blocks in Python are defined by their indentation. All the statements in conditional and looping statements are s...
Read more

CHAPTER 2 - COMPUTER VIRUS

Image
CHAPTER 2 : COMPUTER VIRUS D. Differentiate between the following:       ADWARE       SPYWARE      Adware is a program that displays an unwanted advertisement in a banner, pop-up window on web pages, e-mail messages, or on other Internet services. Spyware is a program placed on a computer or mobile device without the user’s knowledge that secretly collects information about the user and then communicates the same information to some outside source while the user is online.   E. Answer in 1-2 sentence. 1. What is a computer virus? A computer virus is a program which is created deliberately to damage critical information and data. 2. Why do we use antivirus program? We use antivirus program to protect the computer against virus by identifying and removing any computer virus found in the memory, storage, media or incoming files. 3. What do you mean by virus signature? Antivirus programs use virus signat...
Read more