Computer's brain, works with primary and secondary storage devices
Bit
Smallest unit of data, represented by 0 's(off) or 1's(on)
Byte
Smallest addressable(we can control it) unit of data
8 bits = 1 byte
American Standard Code for Information Interchange (ASCII)
Computer language for information interchange
Input Devices
Accept data and instructions and convert them to a form that a computer can
understand
Output Devices
Convert data for human understanding
Hard Drive
, Stores data permanently, impacts computer performance;
Ex. When you're playing a game, it has to load because the data that stored on the hard
drive is being moved to the RAM
Random Access Memory (RAM)
Temporary data storage for running apps
More RAM = More speed
More RAM = Smoother multi-tasking and better performance when running
resource-intense applications
Graphics Card
Controls display pixels for screen quality; it knows which pixels to light up and when to
light them up
This is the most difficult part of sending data through for your computer
Motherboard
Circuit board that connects all other components and allows them to talk to each other
Read Only Memory ROM
Loads basic startup info when computer is powered on
Input/output devices
Enable interaction with the computer.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Easton. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.