Q1. Name the different types of System Bus. [2]
Q2. What is cache memory? [1]
Q3. Differentiate between SRAM and DRAM. (2 points) [2]
Q4. What is an OS? Give two examples. [1+1]
Q5. Explain any two utility software. [2]
Q6. Differentiate between compiler and interpreter. [2]
Q7. Write difference between ASCII and ISCII [1]
Q8. Find the result of binary addition of 11010 and 10110 [1]
Q9. Convert the following: [1 X 10 =10]
a. (423)10 = (?)16
b. (ACE)16 = (?)2
c. (3674)8 = (?)2
d. (11110100101)2 = (?)16
e. (61)10 = (?)2
f. (101101)2 = (?)8
g. (145)16 = (?)10
h. (10001100)2 = (?)10
i. (175)10 = (?)8
j. (2164)8 =(?)10
Q10. Prove De Morgan’s Law using Truth
Answers
Answer:
1Three types of bus are used.
Address bus - carries memory addresses from the processor to other components such as primary storage and input/output devices. ...
Data bus - carries the data between the processor and other components. ...
Control bus - carries control signals from the processor to other components.
2 A CPU cache is a hardware cache used by the central processing unit of a computer to reduce the average cost to access data from the main memory. A cache is a smaller, faster memory, located closer to a processor core, which stores copies of the data from frequently used main memory locations.
3
SR.NO. SRAM DRAM
1. Transistors are used to store information in SRAM.
Capacitors are used to store data in DRAM.
2. Capacitors are not used hence no refreshing is required.
To store information for a longer time, contents of the capacitor needs to be refreshed periodically.
3. SRAM is faster as compared to DRAM.
DRAM provides slow access speeds.
4. These are expensive.
These are cheaper.
5. SRAMs are low density devices.
DRAMs are high density devices.
6. These are used in cache memories.
These are used in main memories.
4 An Operating System (OS) is an interface between a computer user and computer hardware. An operating system is a software which performs all the basic tasks like file management, memory management, process management, handling input and output, and controlling peripheral devices such as disk drives and printers.
Types of Operating Systems
Batch Operating System – This type of operating system does not interact with the computer directly.
Time-Sharing Operating Systems – Each task is given some time to execute, so that all the tasks work smoothly.
Distributed Operating System
Network Operating System
Real-Time Operating System etc
5 Utility software is software designed to help to analyze, configure, optimize or maintain a computer. It is used to support the computer infrastructure - in contrast to application software, which is aimed at directly performing tasks that benefit ordinary users
Utility software helps to manage, maintain and control computer resources. Examples of utility programs are antivirus software, backup software and disk tools. ... Computer systems use a special type of firmware known as BIOS, or Basic Input/Output System. This represents the basic code to get the computer started.
6
S.NO. COMPILER INTERPRETER
1. Compiler scans the whole program in one go.
Translates program one statement at a time.
2. As it scans the code in one go, the errors (if any) are shown at the end together.
Considering it scans code one line at a time, errors are shown line by line.
3. Main advantage of compilers is it’s execution time.
Due to interpreters being slow in executing the object code, it is preferred less.
4. It converts the the instructions into systematic code.
It doesn’t convert the instructions instead it directly works on source language.
Eg. C, C++, C# etc.
Python, Ruby, Perl, SNOBOL, MATLAB etc.
7 ISCII:
ISCII is an acronym for Indian Script Code for Information Interchange. ISCII is an encoding scheme that represents various languages that are written and spoken in India. ISCII follows single encoding schema, which allows for easy transliteration between various writing systems.
ISCII was introduced in the year 1991 by the Bureau of Indian Standards(BIS). It follows an 8-bit encoding schema and contains about 256 characters. The first 128 characters, that is, from 0-127 are same as that for ASCII. The next characters, that are from 128-255 represent the characters from the Indian scripts. Most of the Indian language characters are taken from the ancient Brahmi script and resemble close to each other due to having similar phonetic structure. Hence, a common character set was possible.
ASCII, abbreviated from American Standard Code for Information Interchange, is a character encoding standard for electronic communication. ASCII codes represent text in computers, telecommunications equipment, and other devices.
Pronounced ask-ee, ASCII is the acronym for the American Standard Code for Information Interchange. It is a code for representing 128 English characters as numbers, with each letter assigned a number from 0 to 127. For example, the ASCII code for uppercase M is 77
128 characters
ASCII is a 7-bit character set containing 128 characters. It contains the numbers from 0-9, the upper and lower case English letters from A to Z, and some special characters
8 110000
9 a. (423)10 = (?)16
1A7,
110100111
b (ACE)16 = (?)2
101011001110, dec 2766
c (3674)8 = (?)2
11110111100
d. (11110100101)2 = (?)16
7A5
e. (61)10 = (?)2
111101
f. (101101)2 = (?)8
g. (145)16 = (?)10
h. (10001100)2 = (?)10
i. (175)10 = (?)8
j. (2164)8 =(?)10
Q10. Prove De Morgan’s Law using Truth
Answer:
your question 1 answer data bus address bus
control bus
Explanation:
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