Computer Science 11 past paper 2022

Which of the following is an example of an **embedded computing device**?

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Briefly explain any two types of **system software** with examples.

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Describe the following **Motherboard** components: i) BIOS ii) Ports iii) PCI Expansion Slot iv) Cooling system

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Which part of computer system is responsible to perform arithmetic and logic operations?

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Differentiate between **Shareware** and **Freeware**.

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Describe the following **Motherboard** components: (a) **BIOS** (b) **Memory Slot** (c) **Disk controller** (d) **Expansion slot**

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Which of the following is used to process complex calculations and designing of complicated machines?

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Write down any two differences between **hardware** and **software** with examples.

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a) Write down any three differences between **static** and **dynamic RAM**. b) Compare the **TCP suite** with the **OSI model**.

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The intermediate form between hardware and software is:

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Briefly explain the following types of computers: (a) **Mini computer** (b) **Micro computer**

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What is **OSI Model**? Write down the protocols and devices used on each of the seven layers in a tabular format.

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Which of the following types of optical disks can store more than $100\text{ GB}$ of data?

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What is a printer? Briefly explain **Laser Printer**.

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a) What is the difference between **data bus** and **address bus**? b) Describe the **instruction cycle** with the help of a diagram.

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One (1) terabyte is equal to:

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Write any three differences between **volatile** and **non-volatile** memory.

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Describe the following **output devices**: a) **LCD monitor** b) **Dot Matrix Printer** c) **Inkjet Printer** d) **Plotter**

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A type of memory that needs frequent power refreshing to retain its charge is called:

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Write down two advantages and one disadvantage of **flash memory**.

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a) A company has a number of employees. Each employee may be assigned to one or more projects. A project must have at least one employee assigned and may have several employees ass…

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Which of the following topologies is the most suitable to make network of 5 computers?

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What is **RAM**? Write two differences between **static** and **dynamic RAM**.

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A doctor sees many patients and a patient may have many doctors. Many doctors may consult on a test and recommend it. A doctor can recommend many tests to a patient. Patients have…

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The part of computer system that can hold data temporarily during processing is called:

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Briefly explain **Sequential** and **Direct Access Memory**.

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The data transfer instruction **MOV A, B** will:

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Which of the following registers holds program instructions that are fetched from the memory for execution?

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Identify the role of **Database Administrator (DBA)**.

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**STOP** and **Halt** are examples of:

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Name four **special purpose registers** and explain working of any one of these.

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The expansion card which is required to run multimedia applications on a computer is:

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Briefly describe **CISC** and **RISC** CPU architectures with one example each.

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Which of the following components of system unit is responsible to convert **Alternating Current** to **Direct Current**?

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Briefly explain any two types of **system buses**.

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An interface or connection point through which peripheral devices connect to the computer is called:

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Write down the purpose of the following ports: a) Firewire port b) Serial Port c) USB Port

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The fastest serial transmission port is:

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Write down the importance of **cooling system** in computer system.

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**TCP** and **UDP** protocols are used at the following layer:

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Write down any two differences between **Synchronous** and **Asynchronous Transmission** with the help of a diagram.

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Physical layer of **OSI Model** uses which of the following protocol?

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To setup a computer lab of $25$ computers, which class of **IP address** is suitable?

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If a college wants to setup a computer lab, which **topology** is best and why? Support your answer with two reasons.

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In packet switching network, each packet contains:

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Write down the uses of the following database objects provided by **MS-Access**: a) Table b) Query c) Report

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Which of the following satellite systems is located above **Low Earth Orbit** and below **Geostationary Earth Orbit**?

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Write down the protocol and its purpose used on the following layers of the OSI Model: i) Data Link Layer ii) Network Layer iii) Session Layer

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It is an example of line of sight communication:

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Describe the following types of **ROM**: a) **PROM** b) **EPROM**

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A **Radio Frequency (RF)** communication system consists of two components known as:

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Write down one advantage and two disadvantages of **wireless communication**.

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Wireless application protocol (**WAP**) is used to:

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Write down any three differences between **WiFi** and **WiMAX**.

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Which of the following database languages is used to insert, update and delete data in a database?

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What is **Infrared (IR)**? Write its importance in wireless communication.

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Creating users in **RDBMS** is the task of:

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What is **GPS**? Write its importance in wireless communication.

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The maximum number of instances of one entity associated with each instance of a related entity is called:

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A college has many departments and one department must belong to one college. Observe the situation carefully and draw the following: a) **E-R diagram** b) Identify the **cardinali…

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Which type of query is used to extract data from tables based on specified criteria?

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Which of the following data types can store up to 255 characters?

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Briefly describe the following types of **Form Layouts**: a) Tabular b) Columnar

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What is 'query'? Write its purpose with one example.

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