Computing 1 Flashcards
What are the stages of the IPOS cycle?
A: Input, Process, Output, Storage
Name three input devices.
Keyboard, Mouse, Scanner
Name two output devices.
Monitor, Printer
Name two storage devices.
Hard drive, USB Flash drive
What is a Direct Data Entry (DDE) device?
Devices that can add data to the computer system directly without the user’s input.
What does MICR stand for?
Magnetic Ink Character Recognition
What does OCR stand for?
Optical Character Recognition
What does OMR stand for?
Optical Mark Recognition
What does EFTPOS stand for?
Electronic Funds Transfer at Point of Sale
What does RFID stand for?
Radio Frequency Identification
What is a Magnetic Stripe Reader used for?
It is used to read data from a bank card and send it to the bank’s computer for processing.
Where is a Barcode Reader commonly used?
In supermarkets and libraries to read information stored in the barcode or ISBN number.
What is an Optical Mark Reader used for?
It is used to read multiple choice questions and questionnaires.
What does CPU stand for?
Central Processing Unit
What is an output in computing?
Any type of information that has been processed and is given back to the user.
Why are some storage devices called magnetic storage devices?
Because they use magnetic media to store data.
Why are some storage devices known as Solid State Storage devices?
Because they have no mechanical or moving parts.
Why are they called Optical Storage Devices?
Because they use laser technology to read and write data.
What device does an ATM use to read bank cards?
Magnetic Stripe Reader
What are the stages of the Fetch, Decode, Execute cycle?
Fetch the instruction, Decode the instruction, Execute the instruction
What is the main circuit board inside a computer called?
Motherboard
What is the ‘brains’ of the computer?
A: CPU (Central Processing Unit)
What type of memory is volatile
RAM (Random Access Memory)
What does volatile memory mean?
Volatile memory loses its data when the power is turned off.
What type of memory is non-volatile?
A: ROM (Read-Only Memory)
What is the function of a graphics card?
It makes 3D images and calculates graphics for visuals/games.
What is the role of the power supply in a computer?
It provides electricity to the computer.
What is the purpose of a DVD drive?
It allows discs to be read or copied.
What are Optical Storage Devices?
They are secondary storage devices that use lasers to read and write data.
What would happen if we didn’t have a hard disk?
The computer would not be able to store data permanently.
What is the function of a computer fan?
It helps to cool down the computer components.
Device driver?
- Device drivers allows hardware components to work e.g. printer, sound card, graphics card, network. is a system software as well
Operating systems?
Operating systems provides a user interface
Utility software?
Utility software helps to manage and maintain computer resources and performance is a system software
Primary Memory
Primary memory is also known as Main memory or Internal memory. RAM, ROM, Cache memory, PROM, EPROM, Registers, etc.
Secondary memory
Secondary memory is also known as External memory or Auxiliary memory. Hard Disk, Floppy Disk, Magnetic Tapes, etc.
