Explanation

• A microprocessor’s clock speed is measured in Hertz (Hz).
• Hertz means cycles per second.

Additional information:

• Higher clock speed = more instructions processed per second.
• Modern CPUs work in GHz (gigahertz).

Last verified on 07-02-2026

Explanation

• A hard disk stores much more data.
• It is the main secondary storage device in computers.
• Modern hard disks store data in gigabytes to terabytes.

Additional information:

• Hard disk — 500 GB to 20+ TB
• Flash drive — 16 GB to 1 TB
• RAM — 4 GB to 64 GB
• ROM — few MBs to GBs
• SSD (for comparison) — 256 GB to 8 TB

Last verified on 07-02-2026

Explanation

• An input device sends data to the computer.
• A camera (webcam) captures images/videos and inputs them into the system.

Additional information:

• Input devices help users enter data and commands.
• Camera is used in video calls and image capture.
• Monitor, printer, and speaker are output devices.

Last verified on 07-02-2026

Explanation

CCTV cameras are mandatory at ATM locations to prevent theft and record activities.

Explanation

ROM is permanent memory. 

ROM stands for Read-Only Memory

Non-Volatile: Retains data even when the power is turned off.

Read-Only: Primarily intended for reading data, not for easy modification.

Purpose: Stores essential, permanent instructions (firmware) needed to boot up the computer. 

Explanation

A touch screen is both an input and output device (or an input/output device).

It is an electronic visual display—often an LCD, AMOLED, or OLED screen

Explanation

• Situation analysis is the first step in planning any extension program.
• It involves understanding the current conditions, needs, and problems of the target community.
• Helps design relevant and effective programs based on real data.

Last verified on 03-02-2026

Explanation

• A server protocol is a set of rules used for communication between computers over a network.
• HTTP, DHCP, and DNS are standard computer/server network protocols.
• JPEG is not a protocol; it is an image file format used for pictures.

Last verified on 01-02-2026

Explanation

• Email allows users to send digital files as attachments along with messages.
• Different types of files like documents, audio, and video can be attached.
• Attachment features make email useful for education, business, and communication.

Last verified on 01-02-2026

Explanation

Docketing is an administrative process.

It involves registering incoming and outgoing documents.

It helps in proper filing, reference, and tracking of cases/files.

Docketing ensures smooth office workflow and accountability.