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ID 1069 · 2025 · 1 mark(s)
ALU is part of ?
a) Input Unit
b) Output Unit
c) Central Processing Unit
d) Control Unit
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1116 · 2025 · 1 mark(s)
Which one of the following in correct ascending order of size for nibble, byte, kb, bit, mb?
a) bit<byte<nibble<mb<kb
b) nibble<byte<bit<kb<mb
c) bit<byte<nibble<kb<mb
d) bit<nibble<byte<kb<mb
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1226 · 2025 · 1 mark(s)
The Physical components of computer are called
a. Hardware
b. Software
c. Firmware
d. CPU
Computer System Basics
→ CPU, memory hierarchy and units of memory, Computer system, hardware and I/O devices
· Concept XI_U1_CPU_MEMORY_UNITS;XI_U1_COMPUTER_SYSTEM_IO
Included in reference
ID 1249 · 2025 · 1 mark(s)
________________ is known as the brain of the computers.
(a) ALU
(b) CPU
(c) Control Unit
(d) RAM
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1250 · 2025 · 1 mark(s)
Arrange Gigabyte (GB), Petabyte (PB) and Kilobyte (KB) in increasing order.
(a) GB<ZB<KB
(b) ZB<GB<KB
(c) KB<GB<PB
(d) ZB<KB<GB
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Which of the following is NOT a function of the operating system?
A) Memory Management
B) Task Scheduling
C) Data Encryption
D) Managing User Interaction
Software and Operating System
→ Operating system functions and user interface, CPU, memory hierarchy and units of memory
· Concept XI_U1_OPERATING_SYSTEM;XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1350 · 2025 · 1 mark(s)
A user is working with a large dataset and notices that the computer is slowing down as the dataset increases in size. Which component of the block diagram of the computer is most likely responsible for this slowdown, and what change could be made to improve performance?
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1378 · 2025 · 1 mark(s)
RAM stands for __________.
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1384 · 2025 · 1 mark(s)
Which of the following memory is the fastest?
(a) Hard Disk
(b) RAM
(c) Cache
(d) Pen Drive
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1422 · 2025 · 1 mark(s)
Cache memory is also called .......................... memory.
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1467 · 2025 · 1 mark(s)
Which of the following holds the data and instructions that are currently being used by the CPU?
(a) ROM
(b) Cache
(c) RAM
(d) Control Unit
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1473 · 2025 · 1 mark(s)
What is the correct order in the memory hierarchy from fastest to slowest?
(a) Register → RAM → Cache → Hard Disk
(b) Cache → Register → RAM → Hard Disk
(c) Hard Disk → RAM → Cache → Register
(d) Register → Cache → RAM → Hard Disk
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1511 · 2025 · 1 mark(s)
1 TB = .......................... KB.
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1553 · 2025 · 1 mark(s)
Which of the following is a volatile memory?
(a) ROM
(b) RAM
(c) EPROM
(d) CD-ROM
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1554 · 2025 · 1 mark(s)
The smallest unit of computer memory is:
(a) Byte
(b) Bit
(c) Nibble
(d) Megabyte
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1589 · 2025 · 1 mark(s)
Which of the following devices uses magnetic storage?
a) Flash memory/USB drive
b) SSD card
c) Compact Disk Drive
d) Hard Disk Drive
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1165 · 2025 · 2 mark(s)
What is the difference between RAM and ROM?
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1206 · 2025 · 2 mark(s)
What is the need of RAM? How does it differ from ROM?
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1310 · 2025 · 2 mark(s)
Give one word for the following concepts:
a) The type of software that allows you to modify its code and share your improvements with others for their benefits.
b) The logo or symbol that represents a product's brand identity, helping to sell its image rather than the product itself
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1570 · 2025 · 2 mark(s)
Explain the difference between RAM and ROM.
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1610 · 2025 · 2 mark(s)
Consider the following memory unit expressions:
a) 2¹⁰ KB X 2²⁰ TB
b) 2²⁰ KB X 2³⁰ MB
c) 2¹⁰ MB X 2³⁰ GB
Answer the questions given below:
(i) Identify the options with equal storage value
(ii) Identify the option that represents highest storage value
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Fill in the blanks:
(a) ______ number system uses digits 0 and 1 only.
(b) ______ memory is volatile in nature.
(c) A ______ is a collection of instructions that tells a computer what to do.
Number Systems and Encoding
→ Number systems and conversions, CPU, memory hierarchy and units of memory
· Concept XI_U1_NUMBER_SYSTEMS_CONVERSION;XI_U1_CPU_MEMORY_UNITS
Fill in the blanks:
(i) The component of CPU that controls the flow of data is ______.
(ii) (123)₈ = (______)₁₀
(iii) (______)₂ = (124)₁₀
(iv) (AB)₁₆ = (______)₂
Number Systems and Encoding
→ Number systems and conversions, CPU, memory hierarchy and units of memory
· Concept XI_U1_NUMBER_SYSTEMS_CONVERSION;XI_U1_CPU_MEMORY_UNITS
Answer the following questions in one word/line.
(i) Name one primary memory type.
(ii) Expand KB, MB and GB.
(iii) Which base is hexadecimal?
(iv) Name a Python keyword.
Number Systems and Encoding
→ Number systems and conversions, CPU, memory hierarchy and units of memory
· Concept XI_U1_NUMBER_SYSTEMS_CONVERSION;XI_U1_CPU_MEMORY_UNITS
a) What is cache memory, and why is it considered crucial for improving the performance of a computer system?
b) Convert decimal number 25.3 to binary and to octal number systems.
Number Systems and Encoding
→ Number systems and conversions, CPU, memory hierarchy and units of memory
· Concept XI_U1_NUMBER_SYSTEMS_CONVERSION;XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1546 · 2025 · 4 mark(s)
Explain the Von Neumann Architecture along with well-labelled diagram.
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
Included in reference
ID 1585 · 2025 · 5 mark(s)
Explain the components of a computer system (Input, Output, CPU, Memory, Storage) with one example for each.
Computer System Basics
→ CPU, memory hierarchy and units of memory
· Concept XI_U1_CPU_MEMORY_UNITS
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