Characteristics of Computers
- Automation
- Accuracy
- Long-term storage
- Consistency in performing repetitive tasks
- Programmability
Define software. What are the main components of software? Define hardware. Give two examples of hardware.
Software and Hardware
- Software: An organized collection of computer programs, data, and related documentation.
- Main Components: Programs, data, documentation.
- Hardware: Physical parts of a computer.
- Examples: Keyboard, Central Processing Unit (CPU).
Choose the most appropriate option from those given below :
Which of the following is the typical work flow of a computer?
- Input, output and process
- Output, process and input
- Input, process and output
- Any of these
Which of the following identifies the concept of a computer itself remembering the set of data and instructions to be executed?
- Stored program concept
- Fixed source concept
- Automatic source concept
- Variable source concept
Which of the following refers to a set of step by step instructions to perform a given task written in machine understandable format?
- Program
- Algorithm
- Instruction
- Data
Which of the following devices converts the given data into machine readable form while entering data into the computer?
- Output
- Memory
- Input
- All of these
Which of the following does a computer memory retains ?
- Data
- Results
- Instructions
- All of these
Which of the following memory types is costly, fast and limited in size?
- Primary
- Secondary
- Temporary
- All of these
What is the other name of primary memory ?
- Non-volatile
- Volatile
- Fragile
- Non-Fragile
Which of the following are characteristics of secondary memory?
- Cheaper and slower than the primary memory.
- Cheaper and faster than the primary memory.
- Volatile and slower than the primary memory.
- Volatile and slower than the primary memory.
Hard disk and compact disks (CDs) are examples of which of the following device types?
- Primary
- Secondary
- Temporary
- None of these
Which of the following unit performs the arithmetic and logical computations?
- Arithmetic logic unit
- Advanced mathematical logic unit
- Alternative logic unit
- Logic unit
Which of the following unit manages execution of instructions and controls operations of other components of the computer?
- Memory
- Input
- Control
- Output
Which of the following does ALU and control units together form?
- Central processing unit
- Control processing unit
- Memory
- Input/Output unit
Which is an example of an output mechanism?
- Keyboard
- Barcode reader at superstore
- Printer
- Mouse
Which component of a computer is known as the brain of a computer?
- Input unit
- Output unit
- Central processing unit
- Memory unit
Which of the following is full form of GIGO?
- Garbage in garbage out
- Global input in global output
- Garbage out garbage in
- Get Input Get Output
Which of the following is a component of Software?
- Instructions
- Documentations
- Data
- All of these
Which of the following does the term hardware refers to ?
- Soft parts of computers.
- Logical parts of computers.
- Physical parts of computers.
- Any of these
