answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ugo
2 months ago
13

On a typical microprocessor, a distinct I/O address is used to refer to the I/O data registers and a distinct address for the co

ntrol and status registers in an I/O controller for a given device. Such registers are referred to as ports. In the Intel 8088, two I/O instruction formats are used. In one format, the 8-bit opcode specifies an I/O operation; this is followed by an 8-bit port address. Other I/O opcodes imply that the port address is in the 16-bit DX register. How many ports can the 8088 address in each I/O addressing mode?
Computers and Technology
1 answer:
maria [1K]2 months ago
5 0

Answer:

First I/O instruction format -> 256 ports

Second I/O instruction format -> 65536 ports

Explanation:

  • The initial instruction format can address 256 ports, computed from eight bits for port addressing as 2^8 = 256 ports.
  • The second instruction format allows for 65536 ports, which can be calculated using sixteen bits for addressing as 2^16 = 65536 ports.

Changing the opcode facilitates the selection between the first and second instruction format, allowing one input or output operation at a given moment.

You might be interested in
To what extent are the following computer systems instances of artificial intelligence:
oksian1 [950]

Answer: Scanners used in supermarkets for barcodes and voice-activated phone menus are not examples of artificial intelligence.

Explanation:

(a) Supermarket barcode scanners can read codes, yet they lack the capability to employ machine learning techniques for learning patterns within the codes. Machine learning is a crucial aspect of artificial intelligence (AI), thus indicating they do not qualify as instances of AI. Likewise, voice-activated menus can only present options and do not carry out any complex tasks.

In contrast, web search engines and internet routing algorithms demonstrate dynamic and intelligent capabilities in processing and delivering information to users.

Hence, these are considered examples of AI.

8 0
3 months ago
Assume that k corresponds to register $s0, n corresponds to register $s2 and the base of the array v is in $s1. What is the MIPS
Amiraneli [1052]
Your question is missing the section C, so here is the C segment while (k<n v="" k="k+1;" answer:="" while:="" bge="" end="" while="" n="" addi="" sll="" making="" indexable="" add="" lw="" sw="" j="" end:="" explanation:="" the="" mips="" assembly="" code="" reflecting="" c="" segment="" is="" />
4 0
1 month ago
Su now wants to highlight several inventors in her presentation, so she decides to use the underline color option.
Harlamova29_29 [1022]

Answer:

1. The home tab

2. Font group

3. The small arrow at the bottom right of the font command group.

4. Under "Font" heading (then "All text" subheading)

Explanation:

This explanation will guide Su in completing her task.

1. Navigate to the home tab;

2. From the home tab, Su will access a variety of command groups, but for her needs, she requires the Font command group.

3. A tiny arrow can be found at the bottom left of the font command group section; clicking it will unveil the font dialogue.

4. Within the font dialogue, there are two headings. The "font" heading and the "character spacing" heading.

For her purposes, she must focus on the "Font" heading, which includes various subheadings. To reach the underline color option, she needs to select the "All text" subheading.

Refer to the attached image for guidance.

7 0
2 months ago
6. A small design agency you are consulting for will be creating client websites and wants to purchase a web server so they can
amid [951]

Answer:

Clarification:

The most effective recommendation for the agency would be to ensure they fully grasp the overall ownership costs of the server. This encompasses not only the server itself but also various factors including necessary software, an IT server manager, facility expenses, security investments, and backup options. Although these are key costs they will face, there may be additional unexpected expenses. Consequently, the best approach is to supply them with comprehensive information for making an informed decision.

3 0
2 months ago
Other questions:
  • This program outputs a downwards facing arrow composed of a rectangle and a right triangle. The arrow dimensions are defined by
    15·1 answer
  • Two middle-order batsmen are compared based on their performance in their previous cricket match.
    7·1 answer
  • Strlen("seven"); what is the output?
    14·1 answer
  • How concerned are you about the security of rtos in cars smart homes and wearable technology?
    15·1 answer
  • Your revenue is $22,000. Your Cost of Goods is 16,250. Your gross profit is _____________, fill in the blank,.
    14·1 answer
  • A wireless network does not benefit like a wired network does, when it comes to collision reduction. Which device reduces collis
    6·1 answer
  • Team A found 342 errors during the software engineering process prior to release. Team B found 184 errors. What additional measu
    12·1 answer
  • Write a program whose input is a string which contains a character and a phrase, and whose output indicates the number of times
    8·1 answer
  • True or False: The correct answer to a numeric entry field will appear only if you click on the fields themselves after selectin
    12·1 answer
  • A binary search can be performed only on ____.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!