KYC Flashcards
What is a computing device?
A device that accepts data from the user, processes it, and gives the direct output.
Includes machines capable of performing calculations.
When did the evolution of computers start?
In the late 1930s.
What language did early computers use for their operations?
Binary language.
What is an abacus?
An early calculating device used for arithmetic processes.
Who developed Napier’s Bones and when?
Sir John Napier, released in 1617.
What was the primary use of Napier’s Bones?
For calculations involving addition, subtraction, multiplication, and division.
What is Pascaline?
A calculating device invented by Blaise Pascal in 1642 for addition.
What is the Difference Engine?
A mechanical device designed by Charles Babbage in 1822 capable of storing data and printing output.
What is the Analytical Engine?
The first mechanical general-purpose computer designed by Charles Babbage in 1837.
What characterizes first generation computers (1940-1956)?
The use of vacuum tubes.
What are examples of first generation computing devices?
UNIVAC and ENIAC.
What significant advancement marked the second generation of computers (1956-1963)?
The replacement of vacuum tubes with transistors.
What was a drawback of transistors in second generation computers?
They were subject to damage due to heat emission.
What programming language was commonly used in second generation computers?
Assembly language.
What defines third generation computers (1964-1971)?
The introduction of integrated circuits.
What is a high-level programming language?
A language that uses the English alphabet and mathematical symbols, easy to use and understand.
What are examples of high-level programming languages?
- Fortran
- COBOL
- BASIC
- C
- C++
- Java
What is the hallmark of fourth generation computers (1971-2010)?
The introduction of microprocessors.
What is a microprocessor?
A compact, multipurpose, programmable device that processes input and provides output.
What was the world’s first commercially available microprocessor?
Intel 4004.
What characterizes fifth generation computers (2010 onwards)?
They are based on artificial intelligence and natural language recognition.
How are computers classified based on size and speed?
- Minicomputer
- Supercomputer
- Microcomputer
What is a personal computer?
A microcomputer used by one person at a time, typically slower and with less storage than larger computers.
What is a microcomputer?
A small computer designed for individual use, typically slower and with less storage capacity than mini or mainframe computers
Commonly used in classrooms, homes, and banks.
What is a Desktop PC?
A microcomputer designed to fit comfortably on top of a desk, typically with the monitor in front and the system unit on the side.
What defines a Laptop?
A portable microcomputer that can be used on the lap, also known as a notebook computer.
What is a Tablet?
A mobile computer that offers a touchscreen environment and may include a stylus, available in various sizes.
What is a Smartphone?
A mobile phone built on a mobile operating system with enhanced features such as digital cameras, GPS, and web browsing.
What characterizes a Mainframe computer?
Very large computers that process enormous amounts of information and can communicate with many users simultaneously.
What are common users of Mainframe computers?
Large businesses, government agencies, banks, and universities.
What is a Minicomputer?
Larger and more expensive than microcomputers, often referred to as midrange computers, used by medium and small businesses.
What is a Supercomputer?
A powerful computer capable of very speedy calculations, used in fields like graphic animation and nuclear research.
Fill in the blank: The functional components of a computer include the ______, Central Processing Unit (CPU), and Output Unit.
Input Unit
What is the role of the Central Processing Unit (CPU)?
The control center of a computer that guides, directs, and governs its performance.
What does the Arithmetic Logic Unit (ALU) do?
Performs all arithmetic and logical operations within a computer.
What is the function of the Control Unit (CU)?
Controls and guides the interpretation, flow, and manipulation of all data and information within the computer.
What is the Memory Unit (MU)?
The part of the computer where data is stored and is accessible to the CPU.
What is an Input Unit?
The component that accepts data into a computer, with the keyboard being the standard input device.
What are some examples of input devices?
- Joysticks
- Mice
- Web cameras
- Magnetic Ink Character Recognition Readers (MICR)
- Optical Mark Recognition Readers (OMR)
- Optical Character Readers (OCR)
- Touchscreens
- Smart card readers
- Digital readers
What is a Bar code reader?
A device used to scan and identify product or item codes in various retail environments.
What are Quick Response (QR) codes?
Special barcodes that can be read using QR reading devices, linking users directly to text, emails, or websites.
What does a Magnetic Ink Character Recognition (MICR) Reader do?
Reads characters printed with special magnetic ink, commonly used for sorting cheques.