19242989
Description
Flashcards by Lyle Winfield, updated more than 1 year ago
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Created by Lyle Winfield
over 4 years ago
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| Question | Answer |
| Give some examples of input devices | Any device which can take information from the real world and convert into machine readable code. Keyboards Cameras Scanners Microphones |
| Give some examples of output devices | Any device which takes machine code and produces and output in the real world. Printers Screens Speakers |
| Examples of Optical storage | CDs DVDs Blu Ray |
| Examples of Flash Storage | USB SD Card RAM SSD |
| Examples of Magnetic Storage | Hard Drive Magnetic tape |
| Explain what RAM does | RAM stands for Random Access Memory. It's fast taking lass time to read and write. Volatile - loses data when power is turned off. Stores data and instructions the computer is currently using |
| Explain what ROM does | ROM stands for Read Only Memory. It can not be edited. It's Non Volatile - doesn't lose power once the power is turned off. Software stored on the ROM is called Firmware. Used in game cartridges and the BIOS |
| What is Magnetic storage + examples | Any device which stores data using magnetic fields Magnetic Tape Hard Discs Floppy Disc |
| Advantages and Disadvantages of Magnetic storage | Advantages: Cheapest storage Largest storage for your money Disadvantages: Slowest Fragile due to moving parts |
| What is Optical storage + examples | Devices that store data using markers CDs DVDs Blu ray |
| Advantages and Disadvantages of Optical storage | Advantage: Cheap Portable Resilient Disadvantages: Slow Smaller Size |
| What is Solid State storage + examples | Any device which stores data onto silicon microchips It is also flash memory which reads and write to the microchips Sd cards USB drives External hard drive |
| Advantages and Disadvantages of Solid State | Advantages: Durable due to no moving parts Fastest Disadvantages: Expensive Limited number of cycles |
| What is Virtual storage? | Data that is stored over the net Data stored on the cloud Data that can be accessed from any internet connection |
| Benefits of Virtual Storage | Its on the cloud and so can be accessed anywhere with internet. Stored externally so data is saved if computer fails. Data is stored in a safe server. You can share information with others. You can buy more space. |
| Downsides of Virtual Storage | You need internet to access it. The speed is limited to the internet speed. If the service is down, you cannot access it. If the servers fail, you lose your data. Hackers may be able to access your data. Lots of space will cost a lot |
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