Answer:
texting? it happens in real time and is online.
Answer:
five types of pointing devices
Explanation:
Ponting devices
Pointing means point something and the pointing devices are the input /peripheral devices those are used to point the pointer on the screen. We do move cursor on the screen to open the files or any icon.
There are many types of pointing devices but these are quite common which are given below
- Computer mouse
- Finger on touch screen.
- Joystick.
- Leap Motion.
- Light pen (pen)
1.Mouse
Mouse is most common type of input device that is used for pointing the data on the screen. We press it with our hands and keep pointing the things.
There are three types of mouse
- optical mouse
- wireless mouse
- trackball mouse.
2. Finger on touch screen
In this type of movement the fingers are input devices those we use to see the movement of pointer on the screen and this is most common in this century.
3.Joystick.
Joystick is another input device to point the cursor but it is mostly used in games. Children can use it smartly so it is inculcated in games usually.
4. Leap Motion
The Leap Motion (LM) controller is a latest 3D sensing device for hand posture interaction with a computer. It is having the capability sense the location of the fingers of the hands, as well as the palm position.
5.Light Pen
this is another pointing device which is mostly used to highlight and select the data on the screen.
Note: All of these above pointing devices are most common used now a days. These devices are having new conventions day by day for the ease of user. This era is basically the era of IT ,so the use of computer must be so easy and conventional for the user so, the innovations and improvement in such devices is made side by side.
Answer:
For designing a database suitable for a University registrar, the following information is included which are Information about Students, Information about Departments, Information about Professors, Information about courses, Student Grades,TA's for a course, Department offering different courses.
In creating the database registrar system the following values are defined such as Entity, Attributes of entities,The relationship among entities.
Explanation:
Solution
The following requirements are for designing of database for a University registrar.
The Database Schema includes the following:
- Information about Students
- Information about Departments.
- Information about Professors.
- Information about courses.
- Student Grades.
- TA's for a course.
- Department offering different courses.
Now,
For the design of Database for Registrar System we need to define the following:
(1)Entity: Student, Course, Instructor, Course offering.
(2) Attributes of Entities:
- Student entity has Sid, name, program as its attributes
- Course has Course_n, title, credits, and syllabus as its attributes
- Instructor has iid ,name ,dept, title as its attributes
- Course offering has section_no ,time, room, year,semester as its attributes
(3) Relationship among various entities:
- Enrolls
- Teaches
- © is offered
Note: kindly find an attached copy of the E-R Diagram for University Registrar below, and his diagram shows student entity enrolls various courses which can be having teaches relationship with instructor. Course is being offered by relationship is offered by course offering.
Answer:
Answered below
Explanation:
A macro or macroinstruction is a programmable pattern which translates a sequence of inputs into output. It is a rule that specifies how a certain input sequence is mapped to a replacement output sequence. Macros makes tasks less repetitive by representing complicated keystrokes, mouse clicks and commands.
By thoroughly testing a macro before deployment, you are able to observe the flow of the macro and also see the result of each action that occurs. This helps to isolate any action that causes an error or produces unwanted results and enable it to be consistent across end user platforms.
