Cs 29 September Test

Question 1

RAM and ROM are both examples of:

Answer 1

Primary memory

Question 2

One item stored in RAM is:

Answer 2

Currently running data

Question 3

One iten stored in ROM is:

Answer 3

Boot-up instructions

Question 4

SRAM uses transistors arranged as:

Answer 4

Latches

Question 5

DRAM uses transistors and:

Answer 5

Capacitators

Question 6

Explain the difference between PROM, EPRROM, and EEPROM

Answer 6

• PROM can be set once, EPROM + EEPROM can be overwritten multiple times
• EPROM needs to be removed from device, EEPROM can be erased by situ
  -EPROM can be erased using UV light, EEPROM can be erased using voltage

Question 7

A magnetic hard disk is used to store data on a computer. Describe the principal operations of a magnetic hard disk

Answer 7

• Hard disk has a platter, each surface of platter is capable of being magnitized. The platters are mounted on a spindle. The disks are rapidly rotated, each surface has read/write head mounted on the arm. When reading ftom the disk, a variation in the magnetic field produces a variation in the current through the head

Question 8

A _______ has two layers

Answer 8

Resistive

Question 9

When the user touches the screen, the layers touch and a _______ is completed

Answer 9

Circuit

Question 10

A ______ touchscreen has several layers.

Answer 10

Capacitive

Question 11

Whwn the top layer is touched, there is a ______ in the electric current

Answer 11

Change

Question 12

A microprocessor identifies the ____________ of the touch screen

Answer 12

Coordinates

Question 13

Explain how Ai is used by the camera to automatically focus on the people

Answer 13

-It can scan the surrounding area
-It identifies if there is a face in the image
-It uses facial recognition
-Camera focuses on the patterns identified