WorksheetsIT Fundamentals - Prelim Reviewer
Total questions: 20
Worksheet time: 10mins
What is the definition of a Computer?
An electronic device that manipulates information or data.
A set of instructions that a computer follows to perform a task.
Uses electricity to operate, distinguishing computers from mechanical calculators.
What are the functions of a Computer?
Input, Processing, Storage, Output
Speed, Accuracy, Automation, Diligence
Reduction in Cost and Paperwork
What are the characteristics of Computers?
Speed, Accuracy, Automation, Diligence, Versatility, Storage, Reduction in Cost and Paperwork
No Intelligence, Dependency, Environmental Sensitivity
First Generation, Second Generation, Third Generation
What are the limitations of Computers?
No Intelligence, Dependency, Environmental Sensitivity
Hardware, Software, Peopleware, Firmware
Personal Computer, Workstation, Minicomputer
What is the history and evolution of Computers?
Abacus, Pascal's Calculator, Leibniz's Machine, Jacquard Loom, Charles Babbage, Herman Hollerith, Mark I, Atanasoff-Berry Computer
First Generation, Second Generation, Third Generation
Decimal System, Binary System, Hexadecimal System
What are the generations of Computers?
First Generation (1940-1956), Second Generation (1956-1963), Third Generation (1964-1971), Fourth Generation (1971-Present), Fifth Generation (Present & Beyond)
Hardware, Software, Peopleware, Firmware
Personal Computer, Workstation, Minicomputer
What are the components of a Computer System?
Hardware, Software, Peopleware, Firmware
Input, Processing, Storage, Output
Speed, Accuracy, Automation, Diligence
What is the classification of Computers?
Personal Computer, Workstation, Minicomputer, Mainframe, Supercomputer
First Generation, Second Generation, Third Generation
Decimal System, Binary System, Hexadecimal System
What are the number systems in computing?
Decimal System (Base 10), Binary System (Base 2), Hexadecimal System (Base 16)
Input, Processing, Storage, Output
Speed, Accuracy, Automation, Diligence
What is the binary to decimal conversion?
Multiply each binary digit by 2^n, where n is the position index from right to left.
Divide the number by 2 repeatedly. The remainders in reverse order form the binary equivalent.
A group of 8 bits, typically representing a single character.
What is the decimal to binary conversion?
Divide the number by 2 repeatedly. The remainders in reverse order form the binary equivalent.
Multiply each binary digit by 2^n, where n is the position index from right to left.
A group of 8 bits, typically representing a single character.
What is the purpose of an operating system in a computer?
To manage hardware and software resources, providing a user interface.
To perform calculations and data processing tasks.
To store data permanently and retrieve it when needed.
What are the types of software?
System Software, Application Software, Utility Software
Input, Processing, Storage, Output
Hardware, Firmware, Peopleware
What is the function of RAM in a computer?
To temporarily store data and instructions that the CPU needs while performing tasks.
To manage the input and output devices connected to the computer.
To permanently store data and programs even when the computer is turned off.
What is the role of the CPU in a computer?
To manage the computer's power supply.
To store data permanently.
To execute instructions and process data.
What are the different types of computer networks?
Hardware, Software, Firmware
Input, Processing, Storage, Output
LAN, WAN, MAN, PAN
What is the purpose of a motherboard in a computer?
To provide power to the computer.
To connect all the components of the computer and allow communication between them.
To store data and applications.
What is the primary function of a hard drive in a computer?
To manage the computer's power supply.
To execute instructions and process data.
To store data permanently and retrieve it when needed.
What are the different types of computer memory?
Input, Processing, Storage, Output
Hardware, Software, Peopleware
RAM, ROM, Cache, Virtual Memory
What is the role of an input device in a computer system?
To display output from the computer.
To store data permanently.
To provide data and control signals to the computer.
