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soldi70 [24.7K]
3 years ago
14

What piece of software tells the operating system how to use a specific hardware device? a. User interface b. System service c.

Graphical user interface d. Device driver
Computers and Technology
1 answer:
Dmitry_Shevchenko [17]3 years ago
4 0

Answer:

Device driver is the correct answer.

Explanation:

Device driver is the type of computer program that is for every particular computer hardware, it means there are different different types of drivers for every computer hardware. Without the device driver or computer's hardware driver, the following device or the computer system works but not in the proper manner.

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____ contain instructions for the OS for hardware devices, such as the keyboard, mouse, and video card, and are stored in the sy
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How many bits can a memory chip with the below configuration support? For full credit, show how you got the answer.
tatiyna

Answer:

Total Memory= 4 KB = 4096 bytes = 32768 bits

Explanation:

<em><u>1. Data lines are 8 From D0 to D7</u></em>

so

Total memory at single address locations is 8 bits.

<em><u>2. Address lines are 12 (A0 to A11)</u></em>

There are 12 address lines but 3 out 12 are for selction of chip or memory bank.

so only 9 pins are there to address the locations on one chip.

Total No. of address locations on single chip = 2^9 = 512 locations

as 1 location is 1 byte so total memory of single chip is 512 bytes.

<u><em>3. Total Memory Bank </em></u>

There are total 3 selection pins for memory bank.

so

Total chips = 2^3 = 8.

<em><u>4. Total Memory </u></em>

Total size of 1 chip = 512 bytes

Total size of 8 chip = 8x512 bytes = 4096 bytes = 4096/1024 kb = 4 kb

<em>So total memory of system is 4 Kb = 4096 bytes = 32768 bits</em>

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