DIRECTIONS:
True/False. Circle T or F.
T F 1. The PC/XT keyboard can be used with an AT-compatible motherboard if the function keys are not needed.
T F 2. Microsoft has designed a new 104-key keyboard to use with Windows.
T F 3. Some PC/XT keyboards have a PC/AT switch that allows them to be used with either the PC/XT or PC/AT.
T F 4. Use caution when removing Spacebars; they can be difficult to replace.
T F 5. It is likely to be cheaper to replace a keyboard than to repair it.
T F 6. It is less expensive to replace a keyboard than to purchase the materials and equipment to clean it.
Multiple Choice. Circle the letter of the correct answer for each of the following question.
1. Which is the primary input device?
a. keyboard
b. mouse
c. floppy drive
d. hard drive
DIRECTIONS:
Answer the following questions.
1. Keyboards consist of a set of switches connected in a grid array called a ___________ ____________.
2. Noise or rapid on-off cycles are created when a key is pressed. This is called ____________________ .
3. Data from the keyboard is transmitted to the computer using ______________ data.
A. parallel
B. serial
C. RS232
D. LPT1
4. The letters PPI stand for ___________________________________________________________ .
5. What DOS command would you use to
set the typematic rate at 15.0 CPS with a delay between characters of
0.50 seconds?
6. Fill in the pin number in the table below to describe the keyboard connector signals for a 5 pin DIN connector.
| SIGNAL NAME | 5 PIN DIN Number | VOLTAGE RANGE |
| Keyboard Data | ||
| Ground | ||
| +5V | ||
| Keyboard Clock | ||
| Not connected |