All Free Software Engineering MCQs with Answers

• A. Mouse
• B. Scanner
• C. Printer
• D. Keyboard

Explanation: A mouse, scanner, and keyboard are input devices because they send data to the computer.

• A. Time sharing mode
• B. Interactive
• C. Batch processing mode
• D. All of the above

Explanation: In time-sharing mode, multiple users share the computer through separate terminals or local input/output devices, with processor time…

• A. CPU
• B. megabyte
• C. ROM memory
• D. RAM memory

Explanation: RAM is the working memory where the computer temporarily loads programs and data currently being used.

• A. ANSI
• B. ASCn
• C. EBCDIC
• D. BCD

Explanation: ANSI stands for American National Standards Institute and publishes or coordinates standards, including standards related to programming…

• A. Output
• B. Character
• C. Type
• D. Print

Explanation: A character is any individual letter, digit, punctuation mark, or special symbol that can be entered using a keyboard.

• A. Direct access device only
• B. Combination of sequential and direct access devices
• C. Sequential access device only
• D. All of the above

Explanation: Bubble memory stores magnetic bubbles that move through serial paths, but its design can provide both sequential movement and access to…

• A. Tracks
• B. Cylinders
• C. Sectors
• D. Segments

Explanation: Tracks are the concentric circular paths on a floppy disk where data is recorded.

• A. ROM information can be easily updated
• B. Data in ROM is non volatile, that is, it remains there even without electrical power
• C. ROM provides very large amounts of inexpensive data storage
• D. ROM chips are easily swapped between different brands of computers

Explanation: ROM is non-volatile, meaning its stored contents remain available when electrical power is removed.

• A. Network
• B. Modem
• C. Bus
• D. Communication channel

Explanation: A communication channel is the medium or path through which data travels between two locations.

• A. Keyboard
• B. Floppy disk
• C. Cursor
• D. Software

Explanation: A keyboard is the standard hardware device for entering text, numbers, and commands into a computer.

• A. active tab
• B. insertion point
• C. mouse pointer
• D. ribbon

Explanation: The mouse pointer changes shape to indicate the current action, such as selecting, resizing, or displaying a busy state.

• A. checks data for accuracy
• B. does calculations using addition, substraction, multiplication, and division
• C. does logical comparisons, such as equal to, greater than, less than
• D. does both calculations and logical comparisons

Explanation: The ALU handles both arithmetic operations, such as addition and multiplication, and logical comparisons, such as greater than or equal…

• A. Input
• B. Output
• C. Processing
• D. Software

Explanation: A monitor presents processed information visually, so it is an output device.

• A. Registers and main memory
• B. ALU and bus
• C. Control unit and registers
• D. Control unit and ALU

Explanation: The two principal functional units of a CPU are the control unit, which directs instruction execution, and the ALU, which performs…

• A. socket
• B. pipe
• C. port
• D. none of these

Explanation: A socket is an endpoint for communication between processes over a network, commonly identified by an IP address and port number.

• A. Input is never converted to digital form
• B. Input is first converted to digital form
• C. Output is displayed in digital form
• D. All of the above

Explanation: An analog computer processes continuously varying physical quantities, so its input remains in analog form rather than first being…

• A. Storage
• B. Output
• C. Input
• D. Information

Explanation: Data or instructions supplied to a computer are input, even when they are subsequently placed in memory for processing.

• A. Monitor
• B. Keyboard
• C. ALU
• D. CPU

Explanation: A monitor is an output device that displays text, images, and other information for the user.

• A. Monitor
• B. Shift key
• C. Icon
• D. Mouse

Explanation: The Shift key temporarily changes letter case and accesses the upper symbol printed on number and punctuation keys.

• A. handheld computer
• B. mainframe computer
• C. personal computer
• D. tablet computer

Explanation: A mainframe is a powerful, high-capacity computer designed to serve many users and process large workloads simultaneously.