COMPUTER (2ND MONTHLY EXAM)

It is typically used in businesses and at home to communicate on computer networks, for word processing, to track finances, and for entertainment.

• Workstation

• Mini Computers

• Mainframe Computers

It exist in a wide range of sizes and power. The smallest are embedded within the circuitry of appliances, such as televisions and wristwatches.

• Keyboard

• Mouse

• Computer

It is similar to personal computers but have greater memory and more extensive mathematical abilities, and they are connected to other workstations or personal computers to exchange data.

• Mini Computer

• Mainframe Computer

• Workstations

Its have more memory, speed, and capabilities than workstations and are usually shared by multiple users through a series of interconnected computers.

• Mainframe Computer

• Mini Computers

• Workstation

It stores itself at the start of a disk and becomes activated by reading, starting or restarting the computer when that disk is in the boot drive.

• File infector virus

• Macro Virus

• Boot Sector Virus

It attaches itself to program files i.e. files that give instructions to a computer. These files usually have extensions like exe, com, or bat. When the program is run, the virus executes.

• File infector virus

• Macro Virus

• Boot Sector Virus

It affects data files, especially Word documents and Excel workbooks. This virus type accounts for the vast majority of infected files.

• File infector virus

• Macro Virus

• Boot Sector Virus

It is not really a virus at all but a chain letter phenomenon sent through email.

• Worm or an Email virus

• Macro Virus

• Boot Sector Virus

It can help prevent computer crimes, such as protecting computer screens from observation, keeping printed information and computers in locked facilities, backing up copies of data files and software, and clearing desktops of sensitive information and materials.

• Backup

• Encryption

• Simple techniques

It is a copies of software and data and having ______ computer and communication capabilities are important basic safeguards because the data can then be restored if it was altered or destroyed by a computer crime or accident.

• Backup

• Encryption

• Simple techniques