Unit 1 Assignment 1: Computer Basics Review
Multiple-choice questions
1. C. Represents one binary digit
2. B. Megabyte
3. C. 64 bits per quadruple word
4. A. Used for short-term memory
E. Is installed onto the motherboard
5. A. The CPU tells the RAM which address holds the data that the CPU wants to read.
6. C. Character set
7. D. The binary equivalent of decimal 123456789
8. A. An actuator arm
9. A. Keeps data in order
10. A. By reading the file system’s directory information, which is stored on the storage device
11. B. Using a magnetic charge
12. B. Used for long-term memory
D. Connects to the CPU over a bus using a cable
13. A. Actuator arm
C. Platters
14. A. RAM
D. USB flash drive
15. A. Keyboard map
16. D. By closing an electrical circuit connected to the key when the key is pressed
17. B. Two dimensions: movement as two numbers: one in the direction of the X axis of an X, Y graph and the other on the Y axis.
18. C. Input of commands that control the computer
19. C. The screen is using more than 1 million pixels.
D. 1024 is the number of items top to bottom in a grid on the screen.
20. A. Information that identifies each individual pixel on the computer display
B. A binary code for each pixel, defining its color
List the Words Inside Acronyms
RAM: random-access memory
OS: operating system
CPU: central processing unit
KB: kilobytes
MB: megabytes
GB: gigabytes
TB: terabytes
USB: universal serial bus
HDD: hard disk drive
ODD: optical disc drive
I/O: input and output
DPI: dots per inch