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WorksheetsBasic computer
Total questions: 35
Worksheet time: 18mins
The history of computer begins with the birth of _____ which is believed to be the first computer.
John Napier
Napier’s bone
Stepped Reckoner
Abacus
It was a manually-operated calculating device
Abacus
Napier’s bone
Speed
Stepped Reckoner
Who invented the Napier's Bones?
Abacus
Stepped Reckoner
John
In what year pascaline was invented?
1642-1664
1664-1644
1642-1665
He improved Pascal's invention to develop this machine.
John Napier
Stepped Reckoner
Abacus
Steeped Reckoner
It was developed by a German mathematician-philosopher Gottfried Wilhelm Leibnitz in 1672.
Stepped Reckoner
John Napier
Steeped Reckoner
Abacus
is an electronic device that receives input, stores or processes the input as per user instructions and provides output in desired format.
Computer
CPU
Input unit
Output unit
Computer input is called ________and the output obtained after processing it
Database
Output unit
Data
Input unit
based on user's instructions is called
Data
Information
Output unit
Database
Raw facts and figures which can be processed using arithmetic and logical operations to obtain information are called
Dataset
Database
Data unit
Data
TWO TYPES OF PROCESSES THAT APPLIED TO DATA
Arithmetic unit/ logical unit
Primary/Secondary
Arithmetic logic unit / logical Operation
Arithmetic’s logic unit/ logical operation
it include calculations like addition, subtraction, differentials, square root, etc.
Arithmetic logical unit
Arithmetic unit
Arithmetic logic
Arithmetic logic unit
it include comparison operations like greater than, less than, equal to, opposite, etc.
Logical unit
Logical Operation
Logical Operation unit
Logic unit
Devices like keyboard and mouse that are used to input data and instructions
Input
Input unit
Output unit
Output
Devices like printer and visual display unit that are used to provide information to the user in desired format
Input unit
Input
Output
Output unit
As the name suggests, this unit controls all the functions of the computer.
Control operation
Control unit
Control
This is the brain of the computer where all arithmetic operations and logical operations take place.
Arithmetic Operation
Arithmetic logic unit
Arithmetic logical unit
All input data, instructions and data interim to the processes are stored
Memory
Storage
Memory unit
All input data, instructions and data interim to the processes are stored
Memory
Storage
Memory unit
What are the two types of memory
Primary/secondary
memory/Storage
Primary memory/Secondary memory
resides within the CPU
Memory
Secondary memory
Memory unit
Primary memory
external to it.
Secondary memory
Primary memory
Memory
Memory unit
Typically, a computer can carry out 3-4 million instructions per second.
Versatility
Accuracy
Speed
Storage capacity
Computers exhibit a very high degree
Speed
Reliability
Versatility
Accuracy
Computers can carry out same type of work repeatedly without throwing up errors due to tiredness or boredom, which are very common among humans.
Storage capacity
Reliability
Speed
Accuracy
Computers can carry out a wide range of work from data entry and ticket booking to complex mathematical calculations and continuous astronomical observations. If you can input the necessary data with correct instructions, computer will do the processing.
Versatility
Speed
Storage capacity
Reliability
Computers can store a very large amount of data at a fraction of cost of traditional storage of files. Also, data is safe from normal wear and tear associated with paper.
Speed
Storage capacity
Reliability
Accuracy
When the system is started by switching on the power supply
Cold booting
Warm booting
Booting
When the system is already running and needs to be restarted or rebooted
Cold booting
Warm booting
Booting
is faster than cold booting because BIOS is not reloaded.
Cold booting
Warm booting
Booting
What are the Types of Booting
Cold booting/ booting
Cold/warm
Cold booting / warm booting
It is limited to addition and subtraction.
Pascaline
Stepped Reckoner
Napier bone’s
Pascal
We can see and touch
Software
Hardware
Central processing unit
None
The seg of instructions or programs that make the computer function using these hardware parts are called
Hardware
CPU
Software
None
Control unit, arithmetic logic unit and memory are together called
Central processing unit
Hardware
Software
None
