diff --git a/assignment01/Makefile b/assignment01/Makefile
new file mode 100644
index 0000000..761c99c
--- /dev/null
+++ b/assignment01/Makefile
@@ -0,0 +1,37 @@
+# Makefile
+# Compiler and flags
+CC = gcc
+CFLAGS = -Wall -std=c11
+
+# Output
+TARGETS = pro1.out pro2.out pro3.out pro4.out
+
+all: $(TARGETS)
+
+pro1: project1.c
+	$(CC) $(CFLAGS) -o $@.out $<
+
+pro2: project2.c
+	$(CC) $(CFLAGS) -o $@.out $<
+
+pro3: project3.c
+	$(CC) $(CFLAGS) -o $@.out $<
+
+pro4: project4.c
+	$(CC) $(CFLAGS) -o $@.out $<
+
+# Run targets
+run1: pro1
+	./pro1.out
+
+run2: pro2
+	./pro2.out
+
+run3: pro3
+	./pro3.out
+
+run4: pro4
+	./pro4.out
+
+clean:
+	rm -f $(TARGETS)
diff --git a/assignment01/project1.c b/assignment01/project1.c
index e69de29..b9a272e 100644
--- a/assignment01/project1.c
+++ b/assignment01/project1.c
@@ -0,0 +1,26 @@
+#include <stdio.h>
+
+#define MEGABYTES_TO_MEGABITS 8
+
+int main(void) {
+	float downloadSpeedMbs;
+	float fileSizeMB;
+	float downloadTimeSeconds;
+
+	printf("Enter download speed (Mbs): ");
+	scanf("%f", &downloadSpeedMbs);
+
+	printf("Enter file size (MB): ");
+	scanf("%f", &fileSizeMB);
+
+	downloadTimeSeconds = (fileSizeMB * MEGABYTES_TO_MEGABITS) / downloadSpeedMbs;
+
+	printf(
+		"At %.2f megabits per second, a file of %.2f megabytes downloads in %.2f seconds.\n",
+		downloadSpeedMbs,
+		fileSizeMB,
+		downloadTimeSeconds
+	);
+
+	return 0;
+}
diff --git a/assignment01/project2.c b/assignment01/project2.c
index e69de29..3022ab6 100644
--- a/assignment01/project2.c
+++ b/assignment01/project2.c
@@ -0,0 +1,38 @@
+#include <stdio.h>
+
+#define CENTIMETERS_PER_FOOT 30.48
+#define CENTIMETERS_PER_INCH 2.54
+#define INCHES_PER_FOOT 12
+
+int main(void) {
+
+	float heightCm;
+	int   heightFeet;
+	float heightInches;
+
+	do {
+		
+		printf("Enter a height in centimeters (<=0 to quit): ");
+		scanf("%f", &heightCm);
+
+		if (heightCm <= 0) {
+			break;
+		}
+
+		heightFeet   = (heightCm / CENTIMETERS_PER_FOOT);
+		heightInches = (heightCm / CENTIMETERS_PER_INCH) - 
+		               (INCHES_PER_FOOT * heightFeet);
+
+		printf(
+			"%.1f cm = %d feet, %.1f inches\n",
+			heightCm,
+			heightFeet,
+			heightInches
+		);
+
+	} while (heightCm > 0);
+
+	printf("Bye\n");
+
+	return 0;
+}
\ No newline at end of file
diff --git a/assignment01/project3.c b/assignment01/project3.c
index e69de29..78e6bb5 100644
--- a/assignment01/project3.c
+++ b/assignment01/project3.c
@@ -0,0 +1,36 @@
+#include <stdio.h>
+
+int main(void) {
+
+	int max;
+	int min;
+	int sumOfSquares;
+
+	do {
+
+		sumOfSquares = 0;
+
+		printf("Enter a lower and upper limit: ");
+		scanf("%d %d", &min, &max);
+
+		if (max <= min) {
+			break;
+		}
+
+		for (int i = min; i <= max; i++) {
+			sumOfSquares += i * i;
+		}
+
+		printf(
+			"The sums of the squares from %d to %d is %d\n",
+			min * min,
+			max * max,
+			sumOfSquares
+		);
+
+	} while (max >= min);
+
+	printf("Done\n");
+
+	return 0;
+}
\ No newline at end of file
diff --git a/assignment01/project4.c b/assignment01/project4.c
index e69de29..21768cc 100644
--- a/assignment01/project4.c
+++ b/assignment01/project4.c
@@ -0,0 +1,50 @@
+#include <stdio.h>
+
+#define ARRAY_SIZE 5
+
+void printArray(double arr[]) {
+	for (int i = 0; i < 5; i++) {
+		printf("%.1f, ", arr[i]);
+	}
+	printf("\n");
+}
+
+void copy_arr(double target[], double source[], int size) {
+	for (int i = 0; i < size; i++) {
+		target[i] = source[i];
+	}
+
+	printArray(target);
+}
+
+void copy_ptr(double *target, double *source, int size) {
+	for (int i = 0; i < size; i++) {
+		*(target + i) = *(source + i);
+	}
+
+	printArray(target);
+}
+
+void copy_ptrs(double *target, double *source, double *lastElement) {
+	while (source <= lastElement) {
+		target = source;
+		source++;
+		target++;
+	}
+	
+	printArray(target);
+}
+
+int main(void) {
+
+	double source[ARRAY_SIZE] = {1.1, 2.2, 3.3, 4.4, 5.5};
+	double target1[ARRAY_SIZE];
+	double target2[ARRAY_SIZE];
+	double target3[ARRAY_SIZE];
+
+	copy_arr(target1, source, ARRAY_SIZE);
+	copy_ptr(target2, source, ARRAY_SIZE);
+	copy_ptrs(target3, source, source + ARRAY_SIZE);
+
+	return 0;
+}
\ No newline at end of file