Introduction to Information Technology · Unit 2 · 3 hrs
The Computer System Hardware
Exam-focused notes for The Computer System Hardware (Introduction to Information Technology, CSC114): what the TU syllabus asks and how it has actually been tested, with 11 solved past questions from this unit.
What this unit covers
- Introduction
- Central Processing Unit
- Memory Unit
- Instruction Format
- Instruction Set
- Instruction Cycle
- Microprocessor
- Interconnecting the Units of a Computer
- Inside a Computer Cabinet
Instruction Format
Explain instruction format with example. What is instruction set? [5]
An instruction format is a binary format which specifies a computer instruction. It specifies: - The address of the operand - The Opcode (Operation Code) - The addressing mode of the instruction Component Description ------------------------ Opcode Tells th...
Full solved answer →Central Processing Unit
Explain each component of CPU in brief. [5]
The Central Processing Unit (CPU) is the brain of the computer. It consists of the following main components: --- The Control Unit is the part of the CPU that directs and coordinates the operations of the processor. It does not perform actual data processin...
Full solved answer →Differentiate analog computer with digital computer. What is CPU and how it works? What does an instruction cycle in CPU consist of?[10]
--- Analog Computer: A computer that uses continuously changeable aspects of physical phenomena such as electrical, mechanical, etc. Examples: Planimeter, Nomogram. Digital Computer: A computer that is used to process information with quantities using digit...
Full solved answer →Write short notes on: a). Central Processing Unit b). IOT [5]
--- The Central Processing Unit (CPU) is the processing unit of a computer. It is often called the brain of the computer because it controls and coordinates all operations of the computer system. 1. Arithmetic Logic Unit (ALU) - Performs all arithmetic oper...
Full solved answer →What is the role of Control Unit in CPU? How analog computer differs from digital? [5]
--- The Control Unit (CU) is one of the two main components of the CPU (the other being the ALU). The CPU is often called the brain of the computer, and the Control Unit plays a central role in its operation. Role Description ------------------- Organizing ...
Full solved answer →What is the role of Control Unit in CPU? How analog computer differs from digital? [5]
--- The Control Unit (CU) is one of the two main components of the CPU (the other being the ALU). It plays a central coordinating role in the functioning of the entire computer system. Role Description ------------------- Organizing Processing CU is respons...
Full solved answer →Instruction Cycle
Write short notes on:a.) Instruction Cycle b.) BigData [5]
--- The Instruction Cycle (also called the Fetch-Decode-Execute cycle) is the basic operational process that a CPU follows repeatedly to process instructions stored in memory. 1. Fetch - The Control Unit (CU) fetches the instruction from main memory using t...
Full solved answer →Define instruction set. How a CPU instruction cycle works? [5]
An instruction set (also called an Instruction Set Architecture, ISA) is the complete collection of instructions that a CPU can understand and execute. It defines the set of operations a processor can perform, the data types it supports, the registers avail...
Full solved answer →Microprocessor
How RISC architecture differs from CISC architecture? [5]
CISC has the ability to execute addressing modes or multi-step operations within one instruction set. One instruction performs many low-level operations (e.g., memory storage, arithmetic operation, and loading from memory simultaneously). CISC minimizes the...
Full solved answer →Interconnecting the Units of a Computer
Why bus is used in computer? How control bus differs from data bus? [5]
--- A bus is a set of parallel communication lines (wires) that transfer data, addresses, and control signals between the components of a computer system (CPU, memory, and I/O devices). 1. Shared Communication Path: Instead of having separate dedicated wire...
Full solved answer →Instruction Set
How RISC architecture differs from CISC architecture? [5]
CISC has the ability to execute addressing modes or multi-step operations within one instruction set. One instruction can perform many low-level operations such as: - Memory storage - Arithmetic operations - Loading from memory CISC minimizes the number of ...
Full solved answer →Make Unit 2 stick
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