Explanation

Explanation

Hardware refers to the physical components of a computer system, like the keyboard, mouse, CPU, and monitor.

It contrasts with software, which refers to programs and logic.

Explanation

In an Entity-Relationship (E-R) diagram, a rectangle represents an Entity.

Attributes are shown as ellipses.

Relationships are shown as diamonds.

Explanation

An attribute describes the characteristics or properties of an object or entity (e.g., name, age, color).

It helps define what the object is like.

Explanation

Sorting refers to ordering data in an increasing or decreasing manner. According to some linear relationship among the data items.

Ordering: arranging items in a sequence ordered by some criterion.

Categorizing: grouping items with similar properties.

Explanation

The main memory of a computer is also known by several names, including:

• Primary storage
• Internal memory
• Primary memory
• Main storage
• Random Access Memory (RAM)

All these terms refer to the computer's volatile memory, which temporarily stores data and programs that are currently being used or processed by the CPU (Central Processing Unit).

RAM is a primary memory.

ROM is a primary memory.

RAM stands for: Random Access Memory

ROM stands for: Read Only Memory

Explanation

Full Duplex allows data to be sent and received simultaneously, making it the fastest communication mode.

In contrast:

Simplex is one-way only.

Half Duplex is two-way but not simultaneous.

Explanation

An address is an identifiable location in computer memory where data is stored.

Each memory cell has a unique address used to access or modify data.

Explanation

Let u = 5x, du/dx = 5, du = 5dx, dx = du/5

∫sin5xdx = (1/5)∫sinu du

= (1/5)(-cosu) + c

= -1/5cos5x + c

Explanation

The equation is separable:

  dy/dx = –y

  ⇒ dy/y = –dx

  ⇒ ∫(1/y) dy = ∫(–1) dx

  ⇒ ln|y| = –x + C

  ⇒ y = Ce⁻ˣ (where C is the constant of integration)