Answer:
1. Spreadsheet software.
2. Word processor.
3. Database software.
4. Multimedia software.
Explanation:
A software can be defined as a set of executable instructions (codes) or collection of data that is used typically to instruct a computer on how to perform a specific task and solve a particular problem.
Simply stated, it's a computer program or application that comprises of sets of code for performing specific tasks on the system.
Basically, the various type of softwares used on computers to perform specific functions include the following;
1. <u>Spreadsheet software</u>: it can be used to create tables with embedded calculations. A spreadsheet can be defined as a file or document which comprises of cells in a tabulated format (rows and columns) typically used for formatting, arranging, analyzing, storing, calculating and sorting data on computer systems.
2. <u>Word processor</u>: it can be used to format or edit .doc files. Some examples of word processors are Notepad, Microsoft Word, Sublime text, etc.
3. <u>Database software</u>: it can be used to store data in ordered form. Thus, it allows computer users to efficiently retrieve and manage their data with an appropriate level of security. These records are stored and communicated to other data user when required or needed.
4. <u>Multimedia software</u>: it can play .mpg and .mp3 files. A multimedia software refers to a software that is designed and developed to accept, utilize and combine various file formats such as audio, video, text, animation effects, etc.
An electrical spike is a temporary, very short (less than a second), increase in the electrical supply voltage. A common surge protector will stop voltage spikes and surges. Use surge protectors and UPS devices by connecting all sensitive electronic equipment to UPS or surge protection devices.
Answer:A keyboard layout is any specific physical, visual or functional arrangement of the keys, legends, or key-meaning associations of a computer keyboard, mobile phone, or other computer-controlled typographic keyboard.
An output device is any peripheral that receives data from a computer, usually for display, projection
A printer is an output device that prints paper documents. This includes text documents, images, or a combination of both
Laser Printers and LED printers
Explanation:
Answer:
// Producer Thread
void *producer(void *param) {
buffer_item item;
while (true) {
item = rand() % 100;
sem_wait(&empty);
pthread_mutex_lock(&mutex);
if (insert_item(item))
printf("Can't insert item\n");
else
printf("Producer %d: produced %d\n", *((int*)param), item);
pthread_mutex_unlock(&mutex);
sem_post(&full);
}
}
// Consumer Thread
void *consumer(void *param) {
while (true) {
buffer_item item = NULL;
if (in > 0)
item = buffer[in - 1];
sem_wait(&full);
pthread_mutex_lock(&mutex);
if (remove_item(&item))
printf("Can't remove item\n");
else
printf("Consumer %d: consumed %d\n", *((int*)param), item);
pthread_mutex_unlock(&mutex);
sem_post(&empty);
}
}
Explanation:
An outline of the producer and consumer threads appears as shown above.
Answer: Task manager
Explanation: The task manager window represents an interface in personal computers manufactures by Microsoft. The task manager window contains several information about a computers current processes usually displayed in graphical manner, in addition it provides information on the current running processes and application, the uptime of the computer, the graphic processor. With the task manager window users can set process priorities and prioritize applications, by affording users to view process and their corresponding load on the CPU, users can terminate or close applications from within the task manager interface. Hence non-responsuve programs can be viewed and terminated.