it's -> its

code/modules/modular_computers/hardware/battery_module.dm

@@ -21,7 +21,7 @@
 		return FALSE
 
 	if(battery)
-		user << "<span class='warning'>You try to connect \the [I] to \the [src], but it's connectors are occupied.</span>"
+		user << "<span class='warning'>You try to connect \the [I] to \the [src], but its connectors are occupied.</span>"
 		return FALSE
 
 	if(I.w_class > holder.max_hardware_size)

code/modules/modular_computers/hardware/card_slot.dm

@@ -44,7 +44,7 @@
 		return FALSE
 
 	if(stored_card && stored_card2)
-		user << "<span class='warning'>You try to insert \the [I] into \the [src], but it's slots are occupied.</span>"
+		user << "<span class='warning'>You try to insert \the [I] into \the [src], but its slots are occupied.</span>"
 		return FALSE
 	if(user && !user.unEquip(I))
 		return FALSE

code/modules/modular_computers/hardware/network_card.dm

@@ -65,7 +65,7 @@ var/global/ntnet_card_uid = 1
 
 /obj/item/weapon/computer_hardware/network_card/advanced
 	name = "advanced network card"
-	desc = "An advanced network card for usage with standard NTNet frequencies. It's transmitter is strong enough to connect even off-station."
+	desc = "An advanced network card for usage with standard NTNet frequencies. Its transmitter is strong enough to connect even off-station."
 	long_range = 1
 	origin_tech = "programming=4;engineering=2"
 	power_usage = 100 // Better range but higher power usage.

code/modules/modular_computers/hardware/printer.dm

@@ -44,7 +44,7 @@
 			return FALSE
 
 		if(stored_paper >= max_paper)
-			user << "<span class='warning'>You try to add \the [I] into [src], but it's paper bin is full!</span>"
+			user << "<span class='warning'>You try to add \the [I] into [src], but its paper bin is full!</span>"
 			return FALSE
 
 		user << "<span class='notice'>You insert \the [I] into [src]'s paper recycler.</span>"

code/modules/modular_computers/hardware/recharger.dm

@@ -84,7 +84,7 @@
 // This is not intended to be obtainable in-game. Intended for adminbus and debugging purposes.
 /obj/item/weapon/computer_hardware/recharger/lambda
 	name = "lambda coil"
-	desc = "A very complex device that draws power from it's own bluespace dimension."
+	desc = "A very complex device that draws power from its own bluespace dimension."
 	icon_state = "charger_lambda"
 	w_class = 1
 	charge_rate = 100000