Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
List the five major components of a computer system. |
1.CPU 2.RAM 3.Secondary Storage Devices 4.Input Devices 5.Output Devices |
|
|
What part of the computer actually runs programs? |
CPU's small chips called microprocessors it the what actually runs the program |
|
|
What part of the computer holds data for long periods of time even when there is no power? |
Secondary Storage devices hold data for long periods of time even when there is no power. |
|
|
What part of the computer collects data from people and other devices? |
Input Devices collect data from people and other devices. |
|
|
What part of the computer serves as a work area to store a program and it data while the program is running? |
The RAM serves as a work area to store a program and its data while the program is running. |
|
|
What part of the computer formats and presents data for people or other devices? |
Output Devices is what formats and presents data for people or other devices. |
|
|
Secondary Storage Device Examples |
Disk Drive, USB Drive, Optical Devices(CD, DVD), |
|
|
Input Devices examples |
keyboard, mouse, scanner, disc drivers |
|
|
Output Devices examples |
video displays, printers, CD, disk drivers |
|
|
In what numbering system are all numeric values written as a sequences of 0's and 1's?
|
Binary Numbering Stystem |
|
|
What is ASCII? What is the purpose? |
ASCII is a coding scheme that represents english letters, punctuation marks and other characters in numeeric codes |
|
|
How are numbers stored in the Binary Numbering System? |
sequences of 0's (off) and 1's (on) |
|
|
What is the largest number the Binary Numbering System can store? Why? |
255, because there is only eight bits in a byte |
|
|
Can the Binary Numbering system store negative or real numbers? |
Nope. |
|
|
What is the assembly language? What type of level language is it? |
A low-level langauge that uses mnemonics. |
|
|
What are mnemonics? When are they used? |
Short words/ declarations used in the assembly language |
|
|
Why must programing languages be translated to machine language? |
CPU only understands machine language |
|
|
What must be done before you design a program? |
Analyze the req. |
|
|
What must you do before declaring a variable? |
Must specify the initial value and type |
|
|
What does a flowchart consist of? |
Oval- terminals Rectangle- process/ calculations Parallelogram- input/output Flowlines- connection/ arrows |
|
|
What are the three operations that programs typically perform? |
1. Receives input 2. Process input 3. Output if displayed |
|
|
What are the three rules when naming a variable? |
1. must be one word with no spaces 2. no punctuation characters 3. First character cannot be a number |
|
|
When you assign a vale to a variable what happens to any value that is already stored in the variable? |
It replaces the previous value |
|
|
Where should you write the variable declaration in a program? |
You should declare them before you use them |
|
|
Do initialize variables pose any dander in a program? |
Yes, they cause logic errors |
